Over heating 4.0L
05-04-2005, 08:28 AM
#21
Guest
Posts: n/a
Re: Over heating 4.0L
Just to chime in - this is what was wrong last time when mine started to
overhear - electric fan was shot and wasn't kicking in...
Paul
"Drifter" <zespectre@askme.com> wrote in message
news:k9dg71hououlmrmeljs10m7a98bbajnpj1@4ax.com...
> On Tue, 3 May 2005 21:44:50 -0400, "dcollivier"
> <dc.ollivier@sympatico.ca> wrote:
>
>>90 Cherokee 4.0L back on road after winter, it now overheats. I changed
>>the thermostat and refilled. Still overheats. I thought that maybe it
>>could be an air lock or something, but after playing with the system I
>>can't
>>seem to get it any better. I tried burping the system by cracking the
>>hoses
>>open one at a time and allowing some air out but it did not seem to help.
>>It does not seem like there is any flow in the upper hose at all, but
>>there
>>is coolant in it. Any other check for a waterpump before I throw parts at
>>it. There is no leaking fluid anywhere in the system, the shaft on the
>>pump
>>also feels fine. Any help would be appreciated. Dave.
>
> Do you have a 2'nd electric fan? Is it kicking on at all?
> also did you check for actual flow of fluid? I have seen an old water
> pump that looked fine from the outside but the vanes were pretty much
> corroded right down to stumps and it really wasn't moving any water.
>
>
> Drifter
> "I've been here, I've been there..."
overhear - electric fan was shot and wasn't kicking in...
Paul
"Drifter" <zespectre@askme.com> wrote in message
news:k9dg71hououlmrmeljs10m7a98bbajnpj1@4ax.com...
> On Tue, 3 May 2005 21:44:50 -0400, "dcollivier"
> <dc.ollivier@sympatico.ca> wrote:
>
>>90 Cherokee 4.0L back on road after winter, it now overheats. I changed
>>the thermostat and refilled. Still overheats. I thought that maybe it
>>could be an air lock or something, but after playing with the system I
>>can't
>>seem to get it any better. I tried burping the system by cracking the
>>hoses
>>open one at a time and allowing some air out but it did not seem to help.
>>It does not seem like there is any flow in the upper hose at all, but
>>there
>>is coolant in it. Any other check for a waterpump before I throw parts at
>>it. There is no leaking fluid anywhere in the system, the shaft on the
>>pump
>>also feels fine. Any help would be appreciated. Dave.
>
> Do you have a 2'nd electric fan? Is it kicking on at all?
> also did you check for actual flow of fluid? I have seen an old water
> pump that looked fine from the outside but the vanes were pretty much
> corroded right down to stumps and it really wasn't moving any water.
>
>
> Drifter
> "I've been here, I've been there..."
05-04-2005, 09:03 AM
#22
Guest
Posts: n/a
Re: Over heating 4.0L
Then you are facing bigger troubles soon. We don't even have an
electric fan in ours, just the clutch fan and it takes 4 hours of heavy
low range off roading in plus 100 deg temps to make our red light come
on.
And at the age of the OP's Jeep, the clutch on the fan is sure suspect.
To test it, he can heat up the engine and have someone shut it down
while he watches the fan. If the fan keeps on spinning hot, it is
dead. When hot it should stop almost instantly.
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Paw wrote:
>
> Just to chime in - this is what was wrong last time when mine started to
> overhear - electric fan was shot and wasn't kicking in...
>
> Paul
>
> "Drifter" <zespectre@askme.com> wrote in message
> news:k9dg71hououlmrmeljs10m7a98bbajnpj1@4ax.com...
> > On Tue, 3 May 2005 21:44:50 -0400, "dcollivier"
> > <dc.ollivier@sympatico.ca> wrote:
> >
> >>90 Cherokee 4.0L back on road after winter, it now overheats. I changed
> >>the thermostat and refilled. Still overheats. I thought that maybe it
> >>could be an air lock or something, but after playing with the system I
> >>can't
> >>seem to get it any better. I tried burping the system by cracking the
> >>hoses
> >>open one at a time and allowing some air out but it did not seem to help.
> >>It does not seem like there is any flow in the upper hose at all, but
> >>there
> >>is coolant in it. Any other check for a waterpump before I throw parts at
> >>it. There is no leaking fluid anywhere in the system, the shaft on the
> >>pump
> >>also feels fine. Any help would be appreciated. Dave.
> >
> > Do you have a 2'nd electric fan? Is it kicking on at all?
> > also did you check for actual flow of fluid? I have seen an old water
> > pump that looked fine from the outside but the vanes were pretty much
> > corroded right down to stumps and it really wasn't moving any water.
> >
> >
> > Drifter
> > "I've been here, I've been there..."
electric fan in ours, just the clutch fan and it takes 4 hours of heavy
low range off roading in plus 100 deg temps to make our red light come
on.
And at the age of the OP's Jeep, the clutch on the fan is sure suspect.
To test it, he can heat up the engine and have someone shut it down
while he watches the fan. If the fan keeps on spinning hot, it is
dead. When hot it should stop almost instantly.
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Paw wrote:
>
> Just to chime in - this is what was wrong last time when mine started to
> overhear - electric fan was shot and wasn't kicking in...
>
> Paul
>
> "Drifter" <zespectre@askme.com> wrote in message
> news:k9dg71hououlmrmeljs10m7a98bbajnpj1@4ax.com...
> > On Tue, 3 May 2005 21:44:50 -0400, "dcollivier"
> > <dc.ollivier@sympatico.ca> wrote:
> >
> >>90 Cherokee 4.0L back on road after winter, it now overheats. I changed
> >>the thermostat and refilled. Still overheats. I thought that maybe it
> >>could be an air lock or something, but after playing with the system I
> >>can't
> >>seem to get it any better. I tried burping the system by cracking the
> >>hoses
> >>open one at a time and allowing some air out but it did not seem to help.
> >>It does not seem like there is any flow in the upper hose at all, but
> >>there
> >>is coolant in it. Any other check for a waterpump before I throw parts at
> >>it. There is no leaking fluid anywhere in the system, the shaft on the
> >>pump
> >>also feels fine. Any help would be appreciated. Dave.
> >
> > Do you have a 2'nd electric fan? Is it kicking on at all?
> > also did you check for actual flow of fluid? I have seen an old water
> > pump that looked fine from the outside but the vanes were pretty much
> > corroded right down to stumps and it really wasn't moving any water.
> >
> >
> > Drifter
> > "I've been here, I've been there..."
05-04-2005, 09:03 AM
#23
Guest
Posts: n/a
Re: Over heating 4.0L
Then you are facing bigger troubles soon. We don't even have an
electric fan in ours, just the clutch fan and it takes 4 hours of heavy
low range off roading in plus 100 deg temps to make our red light come
on.
And at the age of the OP's Jeep, the clutch on the fan is sure suspect.
To test it, he can heat up the engine and have someone shut it down
while he watches the fan. If the fan keeps on spinning hot, it is
dead. When hot it should stop almost instantly.
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Paw wrote:
>
> Just to chime in - this is what was wrong last time when mine started to
> overhear - electric fan was shot and wasn't kicking in...
>
> Paul
>
> "Drifter" <zespectre@askme.com> wrote in message
> news:k9dg71hououlmrmeljs10m7a98bbajnpj1@4ax.com...
> > On Tue, 3 May 2005 21:44:50 -0400, "dcollivier"
> > <dc.ollivier@sympatico.ca> wrote:
> >
> >>90 Cherokee 4.0L back on road after winter, it now overheats. I changed
> >>the thermostat and refilled. Still overheats. I thought that maybe it
> >>could be an air lock or something, but after playing with the system I
> >>can't
> >>seem to get it any better. I tried burping the system by cracking the
> >>hoses
> >>open one at a time and allowing some air out but it did not seem to help.
> >>It does not seem like there is any flow in the upper hose at all, but
> >>there
> >>is coolant in it. Any other check for a waterpump before I throw parts at
> >>it. There is no leaking fluid anywhere in the system, the shaft on the
> >>pump
> >>also feels fine. Any help would be appreciated. Dave.
> >
> > Do you have a 2'nd electric fan? Is it kicking on at all?
> > also did you check for actual flow of fluid? I have seen an old water
> > pump that looked fine from the outside but the vanes were pretty much
> > corroded right down to stumps and it really wasn't moving any water.
> >
> >
> > Drifter
> > "I've been here, I've been there..."
electric fan in ours, just the clutch fan and it takes 4 hours of heavy
low range off roading in plus 100 deg temps to make our red light come
on.
And at the age of the OP's Jeep, the clutch on the fan is sure suspect.
To test it, he can heat up the engine and have someone shut it down
while he watches the fan. If the fan keeps on spinning hot, it is
dead. When hot it should stop almost instantly.
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Paw wrote:
>
> Just to chime in - this is what was wrong last time when mine started to
> overhear - electric fan was shot and wasn't kicking in...
>
> Paul
>
> "Drifter" <zespectre@askme.com> wrote in message
> news:k9dg71hououlmrmeljs10m7a98bbajnpj1@4ax.com...
> > On Tue, 3 May 2005 21:44:50 -0400, "dcollivier"
> > <dc.ollivier@sympatico.ca> wrote:
> >
> >>90 Cherokee 4.0L back on road after winter, it now overheats. I changed
> >>the thermostat and refilled. Still overheats. I thought that maybe it
> >>could be an air lock or something, but after playing with the system I
> >>can't
> >>seem to get it any better. I tried burping the system by cracking the
> >>hoses
> >>open one at a time and allowing some air out but it did not seem to help.
> >>It does not seem like there is any flow in the upper hose at all, but
> >>there
> >>is coolant in it. Any other check for a waterpump before I throw parts at
> >>it. There is no leaking fluid anywhere in the system, the shaft on the
> >>pump
> >>also feels fine. Any help would be appreciated. Dave.
> >
> > Do you have a 2'nd electric fan? Is it kicking on at all?
> > also did you check for actual flow of fluid? I have seen an old water
> > pump that looked fine from the outside but the vanes were pretty much
> > corroded right down to stumps and it really wasn't moving any water.
> >
> >
> > Drifter
> > "I've been here, I've been there..."
05-04-2005, 09:03 AM
#24
Guest
Posts: n/a
Re: Over heating 4.0L
Then you are facing bigger troubles soon. We don't even have an
electric fan in ours, just the clutch fan and it takes 4 hours of heavy
low range off roading in plus 100 deg temps to make our red light come
on.
And at the age of the OP's Jeep, the clutch on the fan is sure suspect.
To test it, he can heat up the engine and have someone shut it down
while he watches the fan. If the fan keeps on spinning hot, it is
dead. When hot it should stop almost instantly.
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Paw wrote:
>
> Just to chime in - this is what was wrong last time when mine started to
> overhear - electric fan was shot and wasn't kicking in...
>
> Paul
>
> "Drifter" <zespectre@askme.com> wrote in message
> news:k9dg71hououlmrmeljs10m7a98bbajnpj1@4ax.com...
> > On Tue, 3 May 2005 21:44:50 -0400, "dcollivier"
> > <dc.ollivier@sympatico.ca> wrote:
> >
> >>90 Cherokee 4.0L back on road after winter, it now overheats. I changed
> >>the thermostat and refilled. Still overheats. I thought that maybe it
> >>could be an air lock or something, but after playing with the system I
> >>can't
> >>seem to get it any better. I tried burping the system by cracking the
> >>hoses
> >>open one at a time and allowing some air out but it did not seem to help.
> >>It does not seem like there is any flow in the upper hose at all, but
> >>there
> >>is coolant in it. Any other check for a waterpump before I throw parts at
> >>it. There is no leaking fluid anywhere in the system, the shaft on the
> >>pump
> >>also feels fine. Any help would be appreciated. Dave.
> >
> > Do you have a 2'nd electric fan? Is it kicking on at all?
> > also did you check for actual flow of fluid? I have seen an old water
> > pump that looked fine from the outside but the vanes were pretty much
> > corroded right down to stumps and it really wasn't moving any water.
> >
> >
> > Drifter
> > "I've been here, I've been there..."
electric fan in ours, just the clutch fan and it takes 4 hours of heavy
low range off roading in plus 100 deg temps to make our red light come
on.
And at the age of the OP's Jeep, the clutch on the fan is sure suspect.
To test it, he can heat up the engine and have someone shut it down
while he watches the fan. If the fan keeps on spinning hot, it is
dead. When hot it should stop almost instantly.
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Paw wrote:
>
> Just to chime in - this is what was wrong last time when mine started to
> overhear - electric fan was shot and wasn't kicking in...
>
> Paul
>
> "Drifter" <zespectre@askme.com> wrote in message
> news:k9dg71hououlmrmeljs10m7a98bbajnpj1@4ax.com...
> > On Tue, 3 May 2005 21:44:50 -0400, "dcollivier"
> > <dc.ollivier@sympatico.ca> wrote:
> >
> >>90 Cherokee 4.0L back on road after winter, it now overheats. I changed
> >>the thermostat and refilled. Still overheats. I thought that maybe it
> >>could be an air lock or something, but after playing with the system I
> >>can't
> >>seem to get it any better. I tried burping the system by cracking the
> >>hoses
> >>open one at a time and allowing some air out but it did not seem to help.
> >>It does not seem like there is any flow in the upper hose at all, but
> >>there
> >>is coolant in it. Any other check for a waterpump before I throw parts at
> >>it. There is no leaking fluid anywhere in the system, the shaft on the
> >>pump
> >>also feels fine. Any help would be appreciated. Dave.
> >
> > Do you have a 2'nd electric fan? Is it kicking on at all?
> > also did you check for actual flow of fluid? I have seen an old water
> > pump that looked fine from the outside but the vanes were pretty much
> > corroded right down to stumps and it really wasn't moving any water.
> >
> >
> > Drifter
> > "I've been here, I've been there..."
05-04-2005, 09:03 AM
#25
Guest
Posts: n/a
Re: Over heating 4.0L
Then you are facing bigger troubles soon. We don't even have an
electric fan in ours, just the clutch fan and it takes 4 hours of heavy
low range off roading in plus 100 deg temps to make our red light come
on.
And at the age of the OP's Jeep, the clutch on the fan is sure suspect.
To test it, he can heat up the engine and have someone shut it down
while he watches the fan. If the fan keeps on spinning hot, it is
dead. When hot it should stop almost instantly.
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Paw wrote:
>
> Just to chime in - this is what was wrong last time when mine started to
> overhear - electric fan was shot and wasn't kicking in...
>
> Paul
>
> "Drifter" <zespectre@askme.com> wrote in message
> news:k9dg71hououlmrmeljs10m7a98bbajnpj1@4ax.com...
> > On Tue, 3 May 2005 21:44:50 -0400, "dcollivier"
> > <dc.ollivier@sympatico.ca> wrote:
> >
> >>90 Cherokee 4.0L back on road after winter, it now overheats. I changed
> >>the thermostat and refilled. Still overheats. I thought that maybe it
> >>could be an air lock or something, but after playing with the system I
> >>can't
> >>seem to get it any better. I tried burping the system by cracking the
> >>hoses
> >>open one at a time and allowing some air out but it did not seem to help.
> >>It does not seem like there is any flow in the upper hose at all, but
> >>there
> >>is coolant in it. Any other check for a waterpump before I throw parts at
> >>it. There is no leaking fluid anywhere in the system, the shaft on the
> >>pump
> >>also feels fine. Any help would be appreciated. Dave.
> >
> > Do you have a 2'nd electric fan? Is it kicking on at all?
> > also did you check for actual flow of fluid? I have seen an old water
> > pump that looked fine from the outside but the vanes were pretty much
> > corroded right down to stumps and it really wasn't moving any water.
> >
> >
> > Drifter
> > "I've been here, I've been there..."
electric fan in ours, just the clutch fan and it takes 4 hours of heavy
low range off roading in plus 100 deg temps to make our red light come
on.
And at the age of the OP's Jeep, the clutch on the fan is sure suspect.
To test it, he can heat up the engine and have someone shut it down
while he watches the fan. If the fan keeps on spinning hot, it is
dead. When hot it should stop almost instantly.
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Paw wrote:
>
> Just to chime in - this is what was wrong last time when mine started to
> overhear - electric fan was shot and wasn't kicking in...
>
> Paul
>
> "Drifter" <zespectre@askme.com> wrote in message
> news:k9dg71hououlmrmeljs10m7a98bbajnpj1@4ax.com...
> > On Tue, 3 May 2005 21:44:50 -0400, "dcollivier"
> > <dc.ollivier@sympatico.ca> wrote:
> >
> >>90 Cherokee 4.0L back on road after winter, it now overheats. I changed
> >>the thermostat and refilled. Still overheats. I thought that maybe it
> >>could be an air lock or something, but after playing with the system I
> >>can't
> >>seem to get it any better. I tried burping the system by cracking the
> >>hoses
> >>open one at a time and allowing some air out but it did not seem to help.
> >>It does not seem like there is any flow in the upper hose at all, but
> >>there
> >>is coolant in it. Any other check for a waterpump before I throw parts at
> >>it. There is no leaking fluid anywhere in the system, the shaft on the
> >>pump
> >>also feels fine. Any help would be appreciated. Dave.
> >
> > Do you have a 2'nd electric fan? Is it kicking on at all?
> > also did you check for actual flow of fluid? I have seen an old water
> > pump that looked fine from the outside but the vanes were pretty much
> > corroded right down to stumps and it really wasn't moving any water.
> >
> >
> > Drifter
> > "I've been here, I've been there..."
05-04-2005, 11:19 AM
#26
Guest
Posts: n/a
Re: Over heating 4.0L
great MIke... just what I wanted to hear... ;) The XJ i picked up last
year is trouble all around.. not enough money to fix presently. I'll ask
you since I've posted the question 1x before and no answer - it's a 98XJ -
bought from original owner last year in Massachusetts - 110000miles - the
main thing I noticed at the time was there was a LOT of rust all over the
parts.. the owner didn't have an explanation.. but someone suggested the
winter weather/etc in MA caused the rust due to salt and wet weather - not
just surface rust on some parts... heavy rust - such as on power steering
lines, injectors, etc. Have you run across this at all ever?
Thanks, Paul
"Mike Romain" <romainm@sympatico.ca> wrote in message
news:4278C82E.EB133EB4@sympatico.ca...
> Then you are facing bigger troubles soon. We don't even have an
> electric fan in ours, just the clutch fan and it takes 4 hours of heavy
> low range off roading in plus 100 deg temps to make our red light come
> on.
>
> And at the age of the OP's Jeep, the clutch on the fan is sure suspect.
>
> To test it, he can heat up the engine and have someone shut it down
> while he watches the fan. If the fan keeps on spinning hot, it is
> dead. When hot it should stop almost instantly.
>
> Mike
> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> 88 Cherokee 235 BFG AT's
>
> Paw wrote:
>>
>> Just to chime in - this is what was wrong last time when mine started to
>> overhear - electric fan was shot and wasn't kicking in...
>>
>> Paul
>>
>> "Drifter" <zespectre@askme.com> wrote in message
>> news:k9dg71hououlmrmeljs10m7a98bbajnpj1@4ax.com...
>> > On Tue, 3 May 2005 21:44:50 -0400, "dcollivier"
>> > <dc.ollivier@sympatico.ca> wrote:
>> >
>> >>90 Cherokee 4.0L back on road after winter, it now overheats. I
>> >>changed
>> >>the thermostat and refilled. Still overheats. I thought that maybe it
>> >>could be an air lock or something, but after playing with the system I
>> >>can't
>> >>seem to get it any better. I tried burping the system by cracking the
>> >>hoses
>> >>open one at a time and allowing some air out but it did not seem to
>> >>help.
>> >>It does not seem like there is any flow in the upper hose at all, but
>> >>there
>> >>is coolant in it. Any other check for a waterpump before I throw parts
>> >>at
>> >>it. There is no leaking fluid anywhere in the system, the shaft on the
>> >>pump
>> >>also feels fine. Any help would be appreciated. Dave.
>> >
>> > Do you have a 2'nd electric fan? Is it kicking on at all?
>> > also did you check for actual flow of fluid? I have seen an old water
>> > pump that looked fine from the outside but the vanes were pretty much
>> > corroded right down to stumps and it really wasn't moving any water.
>> >
>> >
>> > Drifter
>> > "I've been here, I've been there..."
year is trouble all around.. not enough money to fix presently. I'll ask
you since I've posted the question 1x before and no answer - it's a 98XJ -
bought from original owner last year in Massachusetts - 110000miles - the
main thing I noticed at the time was there was a LOT of rust all over the
parts.. the owner didn't have an explanation.. but someone suggested the
winter weather/etc in MA caused the rust due to salt and wet weather - not
just surface rust on some parts... heavy rust - such as on power steering
lines, injectors, etc. Have you run across this at all ever?
Thanks, Paul
"Mike Romain" <romainm@sympatico.ca> wrote in message
news:4278C82E.EB133EB4@sympatico.ca...
> Then you are facing bigger troubles soon. We don't even have an
> electric fan in ours, just the clutch fan and it takes 4 hours of heavy
> low range off roading in plus 100 deg temps to make our red light come
> on.
>
> And at the age of the OP's Jeep, the clutch on the fan is sure suspect.
>
> To test it, he can heat up the engine and have someone shut it down
> while he watches the fan. If the fan keeps on spinning hot, it is
> dead. When hot it should stop almost instantly.
>
> Mike
> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> 88 Cherokee 235 BFG AT's
>
> Paw wrote:
>>
>> Just to chime in - this is what was wrong last time when mine started to
>> overhear - electric fan was shot and wasn't kicking in...
>>
>> Paul
>>
>> "Drifter" <zespectre@askme.com> wrote in message
>> news:k9dg71hououlmrmeljs10m7a98bbajnpj1@4ax.com...
>> > On Tue, 3 May 2005 21:44:50 -0400, "dcollivier"
>> > <dc.ollivier@sympatico.ca> wrote:
>> >
>> >>90 Cherokee 4.0L back on road after winter, it now overheats. I
>> >>changed
>> >>the thermostat and refilled. Still overheats. I thought that maybe it
>> >>could be an air lock or something, but after playing with the system I
>> >>can't
>> >>seem to get it any better. I tried burping the system by cracking the
>> >>hoses
>> >>open one at a time and allowing some air out but it did not seem to
>> >>help.
>> >>It does not seem like there is any flow in the upper hose at all, but
>> >>there
>> >>is coolant in it. Any other check for a waterpump before I throw parts
>> >>at
>> >>it. There is no leaking fluid anywhere in the system, the shaft on the
>> >>pump
>> >>also feels fine. Any help would be appreciated. Dave.
>> >
>> > Do you have a 2'nd electric fan? Is it kicking on at all?
>> > also did you check for actual flow of fluid? I have seen an old water
>> > pump that looked fine from the outside but the vanes were pretty much
>> > corroded right down to stumps and it really wasn't moving any water.
>> >
>> >
>> > Drifter
>> > "I've been here, I've been there..."
05-04-2005, 11:19 AM
#27
Guest
Posts: n/a
Re: Over heating 4.0L
great MIke... just what I wanted to hear... ;) The XJ i picked up last
year is trouble all around.. not enough money to fix presently. I'll ask
you since I've posted the question 1x before and no answer - it's a 98XJ -
bought from original owner last year in Massachusetts - 110000miles - the
main thing I noticed at the time was there was a LOT of rust all over the
parts.. the owner didn't have an explanation.. but someone suggested the
winter weather/etc in MA caused the rust due to salt and wet weather - not
just surface rust on some parts... heavy rust - such as on power steering
lines, injectors, etc. Have you run across this at all ever?
Thanks, Paul
"Mike Romain" <romainm@sympatico.ca> wrote in message
news:4278C82E.EB133EB4@sympatico.ca...
> Then you are facing bigger troubles soon. We don't even have an
> electric fan in ours, just the clutch fan and it takes 4 hours of heavy
> low range off roading in plus 100 deg temps to make our red light come
> on.
>
> And at the age of the OP's Jeep, the clutch on the fan is sure suspect.
>
> To test it, he can heat up the engine and have someone shut it down
> while he watches the fan. If the fan keeps on spinning hot, it is
> dead. When hot it should stop almost instantly.
>
> Mike
> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> 88 Cherokee 235 BFG AT's
>
> Paw wrote:
>>
>> Just to chime in - this is what was wrong last time when mine started to
>> overhear - electric fan was shot and wasn't kicking in...
>>
>> Paul
>>
>> "Drifter" <zespectre@askme.com> wrote in message
>> news:k9dg71hououlmrmeljs10m7a98bbajnpj1@4ax.com...
>> > On Tue, 3 May 2005 21:44:50 -0400, "dcollivier"
>> > <dc.ollivier@sympatico.ca> wrote:
>> >
>> >>90 Cherokee 4.0L back on road after winter, it now overheats. I
>> >>changed
>> >>the thermostat and refilled. Still overheats. I thought that maybe it
>> >>could be an air lock or something, but after playing with the system I
>> >>can't
>> >>seem to get it any better. I tried burping the system by cracking the
>> >>hoses
>> >>open one at a time and allowing some air out but it did not seem to
>> >>help.
>> >>It does not seem like there is any flow in the upper hose at all, but
>> >>there
>> >>is coolant in it. Any other check for a waterpump before I throw parts
>> >>at
>> >>it. There is no leaking fluid anywhere in the system, the shaft on the
>> >>pump
>> >>also feels fine. Any help would be appreciated. Dave.
>> >
>> > Do you have a 2'nd electric fan? Is it kicking on at all?
>> > also did you check for actual flow of fluid? I have seen an old water
>> > pump that looked fine from the outside but the vanes were pretty much
>> > corroded right down to stumps and it really wasn't moving any water.
>> >
>> >
>> > Drifter
>> > "I've been here, I've been there..."
year is trouble all around.. not enough money to fix presently. I'll ask
you since I've posted the question 1x before and no answer - it's a 98XJ -
bought from original owner last year in Massachusetts - 110000miles - the
main thing I noticed at the time was there was a LOT of rust all over the
parts.. the owner didn't have an explanation.. but someone suggested the
winter weather/etc in MA caused the rust due to salt and wet weather - not
just surface rust on some parts... heavy rust - such as on power steering
lines, injectors, etc. Have you run across this at all ever?
Thanks, Paul
"Mike Romain" <romainm@sympatico.ca> wrote in message
news:4278C82E.EB133EB4@sympatico.ca...
> Then you are facing bigger troubles soon. We don't even have an
> electric fan in ours, just the clutch fan and it takes 4 hours of heavy
> low range off roading in plus 100 deg temps to make our red light come
> on.
>
> And at the age of the OP's Jeep, the clutch on the fan is sure suspect.
>
> To test it, he can heat up the engine and have someone shut it down
> while he watches the fan. If the fan keeps on spinning hot, it is
> dead. When hot it should stop almost instantly.
>
> Mike
> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> 88 Cherokee 235 BFG AT's
>
> Paw wrote:
>>
>> Just to chime in - this is what was wrong last time when mine started to
>> overhear - electric fan was shot and wasn't kicking in...
>>
>> Paul
>>
>> "Drifter" <zespectre@askme.com> wrote in message
>> news:k9dg71hououlmrmeljs10m7a98bbajnpj1@4ax.com...
>> > On Tue, 3 May 2005 21:44:50 -0400, "dcollivier"
>> > <dc.ollivier@sympatico.ca> wrote:
>> >
>> >>90 Cherokee 4.0L back on road after winter, it now overheats. I
>> >>changed
>> >>the thermostat and refilled. Still overheats. I thought that maybe it
>> >>could be an air lock or something, but after playing with the system I
>> >>can't
>> >>seem to get it any better. I tried burping the system by cracking the
>> >>hoses
>> >>open one at a time and allowing some air out but it did not seem to
>> >>help.
>> >>It does not seem like there is any flow in the upper hose at all, but
>> >>there
>> >>is coolant in it. Any other check for a waterpump before I throw parts
>> >>at
>> >>it. There is no leaking fluid anywhere in the system, the shaft on the
>> >>pump
>> >>also feels fine. Any help would be appreciated. Dave.
>> >
>> > Do you have a 2'nd electric fan? Is it kicking on at all?
>> > also did you check for actual flow of fluid? I have seen an old water
>> > pump that looked fine from the outside but the vanes were pretty much
>> > corroded right down to stumps and it really wasn't moving any water.
>> >
>> >
>> > Drifter
>> > "I've been here, I've been there..."
05-04-2005, 11:19 AM
#28
Guest
Posts: n/a
Re: Over heating 4.0L
great MIke... just what I wanted to hear... ;) The XJ i picked up last
year is trouble all around.. not enough money to fix presently. I'll ask
you since I've posted the question 1x before and no answer - it's a 98XJ -
bought from original owner last year in Massachusetts - 110000miles - the
main thing I noticed at the time was there was a LOT of rust all over the
parts.. the owner didn't have an explanation.. but someone suggested the
winter weather/etc in MA caused the rust due to salt and wet weather - not
just surface rust on some parts... heavy rust - such as on power steering
lines, injectors, etc. Have you run across this at all ever?
Thanks, Paul
"Mike Romain" <romainm@sympatico.ca> wrote in message
news:4278C82E.EB133EB4@sympatico.ca...
> Then you are facing bigger troubles soon. We don't even have an
> electric fan in ours, just the clutch fan and it takes 4 hours of heavy
> low range off roading in plus 100 deg temps to make our red light come
> on.
>
> And at the age of the OP's Jeep, the clutch on the fan is sure suspect.
>
> To test it, he can heat up the engine and have someone shut it down
> while he watches the fan. If the fan keeps on spinning hot, it is
> dead. When hot it should stop almost instantly.
>
> Mike
> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> 88 Cherokee 235 BFG AT's
>
> Paw wrote:
>>
>> Just to chime in - this is what was wrong last time when mine started to
>> overhear - electric fan was shot and wasn't kicking in...
>>
>> Paul
>>
>> "Drifter" <zespectre@askme.com> wrote in message
>> news:k9dg71hououlmrmeljs10m7a98bbajnpj1@4ax.com...
>> > On Tue, 3 May 2005 21:44:50 -0400, "dcollivier"
>> > <dc.ollivier@sympatico.ca> wrote:
>> >
>> >>90 Cherokee 4.0L back on road after winter, it now overheats. I
>> >>changed
>> >>the thermostat and refilled. Still overheats. I thought that maybe it
>> >>could be an air lock or something, but after playing with the system I
>> >>can't
>> >>seem to get it any better. I tried burping the system by cracking the
>> >>hoses
>> >>open one at a time and allowing some air out but it did not seem to
>> >>help.
>> >>It does not seem like there is any flow in the upper hose at all, but
>> >>there
>> >>is coolant in it. Any other check for a waterpump before I throw parts
>> >>at
>> >>it. There is no leaking fluid anywhere in the system, the shaft on the
>> >>pump
>> >>also feels fine. Any help would be appreciated. Dave.
>> >
>> > Do you have a 2'nd electric fan? Is it kicking on at all?
>> > also did you check for actual flow of fluid? I have seen an old water
>> > pump that looked fine from the outside but the vanes were pretty much
>> > corroded right down to stumps and it really wasn't moving any water.
>> >
>> >
>> > Drifter
>> > "I've been here, I've been there..."
year is trouble all around.. not enough money to fix presently. I'll ask
you since I've posted the question 1x before and no answer - it's a 98XJ -
bought from original owner last year in Massachusetts - 110000miles - the
main thing I noticed at the time was there was a LOT of rust all over the
parts.. the owner didn't have an explanation.. but someone suggested the
winter weather/etc in MA caused the rust due to salt and wet weather - not
just surface rust on some parts... heavy rust - such as on power steering
lines, injectors, etc. Have you run across this at all ever?
Thanks, Paul
"Mike Romain" <romainm@sympatico.ca> wrote in message
news:4278C82E.EB133EB4@sympatico.ca...
> Then you are facing bigger troubles soon. We don't even have an
> electric fan in ours, just the clutch fan and it takes 4 hours of heavy
> low range off roading in plus 100 deg temps to make our red light come
> on.
>
> And at the age of the OP's Jeep, the clutch on the fan is sure suspect.
>
> To test it, he can heat up the engine and have someone shut it down
> while he watches the fan. If the fan keeps on spinning hot, it is
> dead. When hot it should stop almost instantly.
>
> Mike
> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> 88 Cherokee 235 BFG AT's
>
> Paw wrote:
>>
>> Just to chime in - this is what was wrong last time when mine started to
>> overhear - electric fan was shot and wasn't kicking in...
>>
>> Paul
>>
>> "Drifter" <zespectre@askme.com> wrote in message
>> news:k9dg71hououlmrmeljs10m7a98bbajnpj1@4ax.com...
>> > On Tue, 3 May 2005 21:44:50 -0400, "dcollivier"
>> > <dc.ollivier@sympatico.ca> wrote:
>> >
>> >>90 Cherokee 4.0L back on road after winter, it now overheats. I
>> >>changed
>> >>the thermostat and refilled. Still overheats. I thought that maybe it
>> >>could be an air lock or something, but after playing with the system I
>> >>can't
>> >>seem to get it any better. I tried burping the system by cracking the
>> >>hoses
>> >>open one at a time and allowing some air out but it did not seem to
>> >>help.
>> >>It does not seem like there is any flow in the upper hose at all, but
>> >>there
>> >>is coolant in it. Any other check for a waterpump before I throw parts
>> >>at
>> >>it. There is no leaking fluid anywhere in the system, the shaft on the
>> >>pump
>> >>also feels fine. Any help would be appreciated. Dave.
>> >
>> > Do you have a 2'nd electric fan? Is it kicking on at all?
>> > also did you check for actual flow of fluid? I have seen an old water
>> > pump that looked fine from the outside but the vanes were pretty much
>> > corroded right down to stumps and it really wasn't moving any water.
>> >
>> >
>> > Drifter
>> > "I've been here, I've been there..."
05-04-2005, 11:19 AM
#29
Guest
Posts: n/a
Re: Over heating 4.0L
great MIke... just what I wanted to hear... ;) The XJ i picked up last
year is trouble all around.. not enough money to fix presently. I'll ask
you since I've posted the question 1x before and no answer - it's a 98XJ -
bought from original owner last year in Massachusetts - 110000miles - the
main thing I noticed at the time was there was a LOT of rust all over the
parts.. the owner didn't have an explanation.. but someone suggested the
winter weather/etc in MA caused the rust due to salt and wet weather - not
just surface rust on some parts... heavy rust - such as on power steering
lines, injectors, etc. Have you run across this at all ever?
Thanks, Paul
"Mike Romain" <romainm@sympatico.ca> wrote in message
news:4278C82E.EB133EB4@sympatico.ca...
> Then you are facing bigger troubles soon. We don't even have an
> electric fan in ours, just the clutch fan and it takes 4 hours of heavy
> low range off roading in plus 100 deg temps to make our red light come
> on.
>
> And at the age of the OP's Jeep, the clutch on the fan is sure suspect.
>
> To test it, he can heat up the engine and have someone shut it down
> while he watches the fan. If the fan keeps on spinning hot, it is
> dead. When hot it should stop almost instantly.
>
> Mike
> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> 88 Cherokee 235 BFG AT's
>
> Paw wrote:
>>
>> Just to chime in - this is what was wrong last time when mine started to
>> overhear - electric fan was shot and wasn't kicking in...
>>
>> Paul
>>
>> "Drifter" <zespectre@askme.com> wrote in message
>> news:k9dg71hououlmrmeljs10m7a98bbajnpj1@4ax.com...
>> > On Tue, 3 May 2005 21:44:50 -0400, "dcollivier"
>> > <dc.ollivier@sympatico.ca> wrote:
>> >
>> >>90 Cherokee 4.0L back on road after winter, it now overheats. I
>> >>changed
>> >>the thermostat and refilled. Still overheats. I thought that maybe it
>> >>could be an air lock or something, but after playing with the system I
>> >>can't
>> >>seem to get it any better. I tried burping the system by cracking the
>> >>hoses
>> >>open one at a time and allowing some air out but it did not seem to
>> >>help.
>> >>It does not seem like there is any flow in the upper hose at all, but
>> >>there
>> >>is coolant in it. Any other check for a waterpump before I throw parts
>> >>at
>> >>it. There is no leaking fluid anywhere in the system, the shaft on the
>> >>pump
>> >>also feels fine. Any help would be appreciated. Dave.
>> >
>> > Do you have a 2'nd electric fan? Is it kicking on at all?
>> > also did you check for actual flow of fluid? I have seen an old water
>> > pump that looked fine from the outside but the vanes were pretty much
>> > corroded right down to stumps and it really wasn't moving any water.
>> >
>> >
>> > Drifter
>> > "I've been here, I've been there..."
year is trouble all around.. not enough money to fix presently. I'll ask
you since I've posted the question 1x before and no answer - it's a 98XJ -
bought from original owner last year in Massachusetts - 110000miles - the
main thing I noticed at the time was there was a LOT of rust all over the
parts.. the owner didn't have an explanation.. but someone suggested the
winter weather/etc in MA caused the rust due to salt and wet weather - not
just surface rust on some parts... heavy rust - such as on power steering
lines, injectors, etc. Have you run across this at all ever?
Thanks, Paul
"Mike Romain" <romainm@sympatico.ca> wrote in message
news:4278C82E.EB133EB4@sympatico.ca...
> Then you are facing bigger troubles soon. We don't even have an
> electric fan in ours, just the clutch fan and it takes 4 hours of heavy
> low range off roading in plus 100 deg temps to make our red light come
> on.
>
> And at the age of the OP's Jeep, the clutch on the fan is sure suspect.
>
> To test it, he can heat up the engine and have someone shut it down
> while he watches the fan. If the fan keeps on spinning hot, it is
> dead. When hot it should stop almost instantly.
>
> Mike
> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> 88 Cherokee 235 BFG AT's
>
> Paw wrote:
>>
>> Just to chime in - this is what was wrong last time when mine started to
>> overhear - electric fan was shot and wasn't kicking in...
>>
>> Paul
>>
>> "Drifter" <zespectre@askme.com> wrote in message
>> news:k9dg71hououlmrmeljs10m7a98bbajnpj1@4ax.com...
>> > On Tue, 3 May 2005 21:44:50 -0400, "dcollivier"
>> > <dc.ollivier@sympatico.ca> wrote:
>> >
>> >>90 Cherokee 4.0L back on road after winter, it now overheats. I
>> >>changed
>> >>the thermostat and refilled. Still overheats. I thought that maybe it
>> >>could be an air lock or something, but after playing with the system I
>> >>can't
>> >>seem to get it any better. I tried burping the system by cracking the
>> >>hoses
>> >>open one at a time and allowing some air out but it did not seem to
>> >>help.
>> >>It does not seem like there is any flow in the upper hose at all, but
>> >>there
>> >>is coolant in it. Any other check for a waterpump before I throw parts
>> >>at
>> >>it. There is no leaking fluid anywhere in the system, the shaft on the
>> >>pump
>> >>also feels fine. Any help would be appreciated. Dave.
>> >
>> > Do you have a 2'nd electric fan? Is it kicking on at all?
>> > also did you check for actual flow of fluid? I have seen an old water
>> > pump that looked fine from the outside but the vanes were pretty much
>> > corroded right down to stumps and it really wasn't moving any water.
>> >
>> >
>> > Drifter
>> > "I've been here, I've been there..."
05-04-2005, 11:57 AM
#30
Guest
Posts: n/a
Re: Over heating 4.0L
ROTFLMAO!
Man oh man have I ever! I seriously have no feeling in any of my
knuckles because of the number of times I have ripped the skin off from
freaking rust eaten bolts and nuts.
The damn rust eats the heads off so wrenches don't work.
My CJ7's body was so rotten someone had to lift up on the tail light so
I could close the door. Really. When I finally snapped or ground off
all the body bolts and winched the tub up to a tree by the roll bar, the
front cowl fell off, the floor fell out, the tailgate fell off and I was
left with a roll bar and most of two rear fenders hanging from the
tree....
Welcome to the salt belt.....
The good news is your rotors are under recall because they already have
rotted out due to rust.
Mike
Paw wrote:
>
> great MIke... just what I wanted to hear... ;) The XJ i picked up last
> year is trouble all around.. not enough money to fix presently. I'll ask
> you since I've posted the question 1x before and no answer - it's a 98XJ -
> bought from original owner last year in Massachusetts - 110000miles - the
> main thing I noticed at the time was there was a LOT of rust all over the
> parts.. the owner didn't have an explanation.. but someone suggested the
> winter weather/etc in MA caused the rust due to salt and wet weather - not
> just surface rust on some parts... heavy rust - such as on power steering
> lines, injectors, etc. Have you run across this at all ever?
>
> Thanks, Paul
>
> "Mike Romain" <romainm@sympatico.ca> wrote in message
> news:4278C82E.EB133EB4@sympatico.ca...
> > Then you are facing bigger troubles soon. We don't even have an
> > electric fan in ours, just the clutch fan and it takes 4 hours of heavy
> > low range off roading in plus 100 deg temps to make our red light come
> > on.
> >
> > And at the age of the OP's Jeep, the clutch on the fan is sure suspect.
> >
> > To test it, he can heat up the engine and have someone shut it down
> > while he watches the fan. If the fan keeps on spinning hot, it is
> > dead. When hot it should stop almost instantly.
> >
> > Mike
> > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > 88 Cherokee 235 BFG AT's
> >
> > Paw wrote:
> >>
> >> Just to chime in - this is what was wrong last time when mine started to
> >> overhear - electric fan was shot and wasn't kicking in...
> >>
> >> Paul
> >>
> >> "Drifter" <zespectre@askme.com> wrote in message
> >> news:k9dg71hououlmrmeljs10m7a98bbajnpj1@4ax.com...
> >> > On Tue, 3 May 2005 21:44:50 -0400, "dcollivier"
> >> > <dc.ollivier@sympatico.ca> wrote:
> >> >
> >> >>90 Cherokee 4.0L back on road after winter, it now overheats. I
> >> >>changed
> >> >>the thermostat and refilled. Still overheats. I thought that maybe it
> >> >>could be an air lock or something, but after playing with the system I
> >> >>can't
> >> >>seem to get it any better. I tried burping the system by cracking the
> >> >>hoses
> >> >>open one at a time and allowing some air out but it did not seem to
> >> >>help.
> >> >>It does not seem like there is any flow in the upper hose at all, but
> >> >>there
> >> >>is coolant in it. Any other check for a waterpump before I throw parts
> >> >>at
> >> >>it. There is no leaking fluid anywhere in the system, the shaft on the
> >> >>pump
> >> >>also feels fine. Any help would be appreciated. Dave.
> >> >
> >> > Do you have a 2'nd electric fan? Is it kicking on at all?
> >> > also did you check for actual flow of fluid? I have seen an old water
> >> > pump that looked fine from the outside but the vanes were pretty much
> >> > corroded right down to stumps and it really wasn't moving any water.
> >> >
> >> >
> >> > Drifter
> >> > "I've been here, I've been there..."
Man oh man have I ever! I seriously have no feeling in any of my
knuckles because of the number of times I have ripped the skin off from
freaking rust eaten bolts and nuts.
The damn rust eats the heads off so wrenches don't work.
My CJ7's body was so rotten someone had to lift up on the tail light so
I could close the door. Really. When I finally snapped or ground off
all the body bolts and winched the tub up to a tree by the roll bar, the
front cowl fell off, the floor fell out, the tailgate fell off and I was
left with a roll bar and most of two rear fenders hanging from the
tree....
Welcome to the salt belt.....
The good news is your rotors are under recall because they already have
rotted out due to rust.
Mike
Paw wrote:
>
> great MIke... just what I wanted to hear... ;) The XJ i picked up last
> year is trouble all around.. not enough money to fix presently. I'll ask
> you since I've posted the question 1x before and no answer - it's a 98XJ -
> bought from original owner last year in Massachusetts - 110000miles - the
> main thing I noticed at the time was there was a LOT of rust all over the
> parts.. the owner didn't have an explanation.. but someone suggested the
> winter weather/etc in MA caused the rust due to salt and wet weather - not
> just surface rust on some parts... heavy rust - such as on power steering
> lines, injectors, etc. Have you run across this at all ever?
>
> Thanks, Paul
>
> "Mike Romain" <romainm@sympatico.ca> wrote in message
> news:4278C82E.EB133EB4@sympatico.ca...
> > Then you are facing bigger troubles soon. We don't even have an
> > electric fan in ours, just the clutch fan and it takes 4 hours of heavy
> > low range off roading in plus 100 deg temps to make our red light come
> > on.
> >
> > And at the age of the OP's Jeep, the clutch on the fan is sure suspect.
> >
> > To test it, he can heat up the engine and have someone shut it down
> > while he watches the fan. If the fan keeps on spinning hot, it is
> > dead. When hot it should stop almost instantly.
> >
> > Mike
> > 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> > 88 Cherokee 235 BFG AT's
> >
> > Paw wrote:
> >>
> >> Just to chime in - this is what was wrong last time when mine started to
> >> overhear - electric fan was shot and wasn't kicking in...
> >>
> >> Paul
> >>
> >> "Drifter" <zespectre@askme.com> wrote in message
> >> news:k9dg71hououlmrmeljs10m7a98bbajnpj1@4ax.com...
> >> > On Tue, 3 May 2005 21:44:50 -0400, "dcollivier"
> >> > <dc.ollivier@sympatico.ca> wrote:
> >> >
> >> >>90 Cherokee 4.0L back on road after winter, it now overheats. I
> >> >>changed
> >> >>the thermostat and refilled. Still overheats. I thought that maybe it
> >> >>could be an air lock or something, but after playing with the system I
> >> >>can't
> >> >>seem to get it any better. I tried burping the system by cracking the
> >> >>hoses
> >> >>open one at a time and allowing some air out but it did not seem to
> >> >>help.
> >> >>It does not seem like there is any flow in the upper hose at all, but
> >> >>there
> >> >>is coolant in it. Any other check for a waterpump before I throw parts
> >> >>at
> >> >>it. There is no leaking fluid anywhere in the system, the shaft on the
> >> >>pump
> >> >>also feels fine. Any help would be appreciated. Dave.
> >> >
> >> > Do you have a 2'nd electric fan? Is it kicking on at all?
> >> > also did you check for actual flow of fluid? I have seen an old water
> >> > pump that looked fine from the outside but the vanes were pretty much
> >> > corroded right down to stumps and it really wasn't moving any water.
> >> >
> >> >
> >> > Drifter
> >> > "I've been here, I've been there..."
