87 YJ 258 Cold start problems (Long)
Guest
Posts: n/a
Re: 87 YJ 258 Cold start problems (Long)
Jeepster wrote:
>
> On Tue, 09 Dec 2003 19:04:23 -0700, Jeepster <me@excite.com> wrote:
>
> >On Wed, 10 Dec 2003 00:55:25 GMT, "c" <c@me.org> wrote:
> >
> >>
> >>"Jeepster" <me@excite.com> wrote in message
> >>news:lemctvka347jlpgngcvihp86ug29cungse@4ax.com. ..
> >>> Maybe the experts here might be able to solve a problem with my 4.2 87
> >>> YJ, it is a beast to start in cold weather but starts fine after it
> >>> has been warmed up. I have had it to the "experts" several times and
> >>> so far they have solved nothing! When I take it to work I have
> >>> actually resorted to putting a ceramic heater under the hood, when I
> >>> do this it usually fires up just fine this has got to be telling me
> >>> something. (Northern Canada is where I live and it can get quite cold
> >>> here) Maybe this beast doesn't need to be choked when started?
> >>> The engine has 250K km on it and experiences some blow by which would
> >>> be expected, but damn I can still get it up to 130 km/h on the highway
> >>> and the only oil that it uses is what it blows back or what it leaks
> >>> out the valve cover.
> >Some of my ramblings clipped off.
> >>>
> >>> TIA
> >http://members.shaw.ca/kb57/jeep.htm
>
> Just a follow up guys. Since doing the Nutter mod to my Jeep I have
> found that the thing idles like never before, you would think this
> engine had 29,000 km's on it and not 297,000 km's. Last night it
> dipped to -20 Deg C here and I went out this morning pumped it twice
> to set the choke and cranked it over it didn't fire up right away but
> on the second crank away it went, with the computer in the loop it
> would have flooded and I might still be trying to get it to go. It
> does need a bit of feathering of the gas to get it to a steady idle
> but I can live with that minor inconvenience.
>
> I did notice that the sol-vac doesn't seem to respond and I was
> wondering if I should bother to repair this as I thought they were
> really only needed on automatic transmissions.
>
> Any thoughts on this?
You are correct, the sol vac is for auto and AC and gets disabled with
the Nutter bypass.
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
>
> On Tue, 09 Dec 2003 19:04:23 -0700, Jeepster <me@excite.com> wrote:
>
> >On Wed, 10 Dec 2003 00:55:25 GMT, "c" <c@me.org> wrote:
> >
> >>
> >>"Jeepster" <me@excite.com> wrote in message
> >>news:lemctvka347jlpgngcvihp86ug29cungse@4ax.com. ..
> >>> Maybe the experts here might be able to solve a problem with my 4.2 87
> >>> YJ, it is a beast to start in cold weather but starts fine after it
> >>> has been warmed up. I have had it to the "experts" several times and
> >>> so far they have solved nothing! When I take it to work I have
> >>> actually resorted to putting a ceramic heater under the hood, when I
> >>> do this it usually fires up just fine this has got to be telling me
> >>> something. (Northern Canada is where I live and it can get quite cold
> >>> here) Maybe this beast doesn't need to be choked when started?
> >>> The engine has 250K km on it and experiences some blow by which would
> >>> be expected, but damn I can still get it up to 130 km/h on the highway
> >>> and the only oil that it uses is what it blows back or what it leaks
> >>> out the valve cover.
> >Some of my ramblings clipped off.
> >>>
> >>> TIA
> >http://members.shaw.ca/kb57/jeep.htm
>
> Just a follow up guys. Since doing the Nutter mod to my Jeep I have
> found that the thing idles like never before, you would think this
> engine had 29,000 km's on it and not 297,000 km's. Last night it
> dipped to -20 Deg C here and I went out this morning pumped it twice
> to set the choke and cranked it over it didn't fire up right away but
> on the second crank away it went, with the computer in the loop it
> would have flooded and I might still be trying to get it to go. It
> does need a bit of feathering of the gas to get it to a steady idle
> but I can live with that minor inconvenience.
>
> I did notice that the sol-vac doesn't seem to respond and I was
> wondering if I should bother to repair this as I thought they were
> really only needed on automatic transmissions.
>
> Any thoughts on this?
You are correct, the sol vac is for auto and AC and gets disabled with
the Nutter bypass.
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Guest
Posts: n/a
Re: 87 YJ 258 Cold start problems (Long)
On Fri, 12 Dec 2003 11:30:12 -0500, Mike Romain <romainm@sympatico.ca>
wrote:
>>
>> I did notice that the sol-vac doesn't seem to respond and I was
>> wondering if I should bother to repair this as I thought they were
>> really only needed on automatic transmissions.
>>
>> Any thoughts on this?
>
>You are correct, the sol vac is for auto and AC and gets disabled with
>the Nutter bypass.
>
>Mike
>86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
>88 Cherokee 235 BFG AT's
I went and got a switch today and wired the sol-vac to it, when I
start it up and want it to rev a bit higher I can tap the gas and
flick on the switch. I set it up so that when I do this I get it
reving at about 1000 rpm then I can leave it unattended while it warms
up, with out fear that it is going to stall on me.
Hell the Solenoid is there I might as well use it. :)
wrote:
>>
>> I did notice that the sol-vac doesn't seem to respond and I was
>> wondering if I should bother to repair this as I thought they were
>> really only needed on automatic transmissions.
>>
>> Any thoughts on this?
>
>You are correct, the sol vac is for auto and AC and gets disabled with
>the Nutter bypass.
>
>Mike
>86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
>88 Cherokee 235 BFG AT's
I went and got a switch today and wired the sol-vac to it, when I
start it up and want it to rev a bit higher I can tap the gas and
flick on the switch. I set it up so that when I do this I get it
reving at about 1000 rpm then I can leave it unattended while it warms
up, with out fear that it is going to stall on me.
Hell the Solenoid is there I might as well use it. :)
Guest
Posts: n/a
Re: 87 YJ 258 Cold start problems (Long)
On Fri, 12 Dec 2003 11:30:12 -0500, Mike Romain <romainm@sympatico.ca>
wrote:
>>
>> I did notice that the sol-vac doesn't seem to respond and I was
>> wondering if I should bother to repair this as I thought they were
>> really only needed on automatic transmissions.
>>
>> Any thoughts on this?
>
>You are correct, the sol vac is for auto and AC and gets disabled with
>the Nutter bypass.
>
>Mike
>86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
>88 Cherokee 235 BFG AT's
I went and got a switch today and wired the sol-vac to it, when I
start it up and want it to rev a bit higher I can tap the gas and
flick on the switch. I set it up so that when I do this I get it
reving at about 1000 rpm then I can leave it unattended while it warms
up, with out fear that it is going to stall on me.
Hell the Solenoid is there I might as well use it. :)
wrote:
>>
>> I did notice that the sol-vac doesn't seem to respond and I was
>> wondering if I should bother to repair this as I thought they were
>> really only needed on automatic transmissions.
>>
>> Any thoughts on this?
>
>You are correct, the sol vac is for auto and AC and gets disabled with
>the Nutter bypass.
>
>Mike
>86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
>88 Cherokee 235 BFG AT's
I went and got a switch today and wired the sol-vac to it, when I
start it up and want it to rev a bit higher I can tap the gas and
flick on the switch. I set it up so that when I do this I get it
reving at about 1000 rpm then I can leave it unattended while it warms
up, with out fear that it is going to stall on me.
Hell the Solenoid is there I might as well use it. :)
Guest
Posts: n/a
Re: 87 YJ 258 Cold start problems (Long)
On Fri, 12 Dec 2003 11:30:12 -0500, Mike Romain <romainm@sympatico.ca>
wrote:
>>
>> I did notice that the sol-vac doesn't seem to respond and I was
>> wondering if I should bother to repair this as I thought they were
>> really only needed on automatic transmissions.
>>
>> Any thoughts on this?
>
>You are correct, the sol vac is for auto and AC and gets disabled with
>the Nutter bypass.
>
>Mike
>86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
>88 Cherokee 235 BFG AT's
I went and got a switch today and wired the sol-vac to it, when I
start it up and want it to rev a bit higher I can tap the gas and
flick on the switch. I set it up so that when I do this I get it
reving at about 1000 rpm then I can leave it unattended while it warms
up, with out fear that it is going to stall on me.
Hell the Solenoid is there I might as well use it. :)
wrote:
>>
>> I did notice that the sol-vac doesn't seem to respond and I was
>> wondering if I should bother to repair this as I thought they were
>> really only needed on automatic transmissions.
>>
>> Any thoughts on this?
>
>You are correct, the sol vac is for auto and AC and gets disabled with
>the Nutter bypass.
>
>Mike
>86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
>88 Cherokee 235 BFG AT's
I went and got a switch today and wired the sol-vac to it, when I
start it up and want it to rev a bit higher I can tap the gas and
flick on the switch. I set it up so that when I do this I get it
reving at about 1000 rpm then I can leave it unattended while it warms
up, with out fear that it is going to stall on me.
Hell the Solenoid is there I might as well use it. :)
Guest
Posts: n/a
Re: 87 YJ 258 Cold start problems (Long)
On 12 Dec 2003 15:26:39 GMT, jianryla@aol.com (Jim Boucher) wrote:
>In article <gmiitvo95th2omhg9j94colm59jijuc5cl@4ax.com>, Jeepster
><me@excite.com> writes:
>
>After Nutter:
>>I did notice that the sol-vac doesn't seem to respond and I was
>>wondering if I should bother to repair this as I thought they were
>>really only needed on automatic transmissions.
>>
>This is non-functional after the Nutter. The computer used to use that to raise
>the idle at starting (~1100 for 30 sec then 900 for 2 min I think). Trash it.
>I also use a CTO to control timing advance: Manifold vac <155° and ported vac
>above that. Cost is $20 but well worth it. Grand Wagoneer technology.
>
>Jim
>
>88 Grand Wagoneer
>89 Wrangler
>00 Grand Cherokee
After a bit of Google searching I did come to realization that the
sol-vac was now dead.....thanks.
With my limited knowledge on these things I don't quite understand how
the CTO could control vac advance.
http://www.off-road.com/jeep/tech/258bbd/images/CTO.jpg
The CTO is a switch isn't?
>In article <gmiitvo95th2omhg9j94colm59jijuc5cl@4ax.com>, Jeepster
><me@excite.com> writes:
>
>After Nutter:
>>I did notice that the sol-vac doesn't seem to respond and I was
>>wondering if I should bother to repair this as I thought they were
>>really only needed on automatic transmissions.
>>
>This is non-functional after the Nutter. The computer used to use that to raise
>the idle at starting (~1100 for 30 sec then 900 for 2 min I think). Trash it.
>I also use a CTO to control timing advance: Manifold vac <155° and ported vac
>above that. Cost is $20 but well worth it. Grand Wagoneer technology.
>
>Jim
>
>88 Grand Wagoneer
>89 Wrangler
>00 Grand Cherokee
After a bit of Google searching I did come to realization that the
sol-vac was now dead.....thanks.
With my limited knowledge on these things I don't quite understand how
the CTO could control vac advance.
http://www.off-road.com/jeep/tech/258bbd/images/CTO.jpg
The CTO is a switch isn't?
Guest
Posts: n/a
Re: 87 YJ 258 Cold start problems (Long)
On 12 Dec 2003 15:26:39 GMT, jianryla@aol.com (Jim Boucher) wrote:
>In article <gmiitvo95th2omhg9j94colm59jijuc5cl@4ax.com>, Jeepster
><me@excite.com> writes:
>
>After Nutter:
>>I did notice that the sol-vac doesn't seem to respond and I was
>>wondering if I should bother to repair this as I thought they were
>>really only needed on automatic transmissions.
>>
>This is non-functional after the Nutter. The computer used to use that to raise
>the idle at starting (~1100 for 30 sec then 900 for 2 min I think). Trash it.
>I also use a CTO to control timing advance: Manifold vac <155° and ported vac
>above that. Cost is $20 but well worth it. Grand Wagoneer technology.
>
>Jim
>
>88 Grand Wagoneer
>89 Wrangler
>00 Grand Cherokee
After a bit of Google searching I did come to realization that the
sol-vac was now dead.....thanks.
With my limited knowledge on these things I don't quite understand how
the CTO could control vac advance.
http://www.off-road.com/jeep/tech/258bbd/images/CTO.jpg
The CTO is a switch isn't?
>In article <gmiitvo95th2omhg9j94colm59jijuc5cl@4ax.com>, Jeepster
><me@excite.com> writes:
>
>After Nutter:
>>I did notice that the sol-vac doesn't seem to respond and I was
>>wondering if I should bother to repair this as I thought they were
>>really only needed on automatic transmissions.
>>
>This is non-functional after the Nutter. The computer used to use that to raise
>the idle at starting (~1100 for 30 sec then 900 for 2 min I think). Trash it.
>I also use a CTO to control timing advance: Manifold vac <155° and ported vac
>above that. Cost is $20 but well worth it. Grand Wagoneer technology.
>
>Jim
>
>88 Grand Wagoneer
>89 Wrangler
>00 Grand Cherokee
After a bit of Google searching I did come to realization that the
sol-vac was now dead.....thanks.
With my limited knowledge on these things I don't quite understand how
the CTO could control vac advance.
http://www.off-road.com/jeep/tech/258bbd/images/CTO.jpg
The CTO is a switch isn't?
Guest
Posts: n/a
Re: 87 YJ 258 Cold start problems (Long)
On 12 Dec 2003 15:26:39 GMT, jianryla@aol.com (Jim Boucher) wrote:
>In article <gmiitvo95th2omhg9j94colm59jijuc5cl@4ax.com>, Jeepster
><me@excite.com> writes:
>
>After Nutter:
>>I did notice that the sol-vac doesn't seem to respond and I was
>>wondering if I should bother to repair this as I thought they were
>>really only needed on automatic transmissions.
>>
>This is non-functional after the Nutter. The computer used to use that to raise
>the idle at starting (~1100 for 30 sec then 900 for 2 min I think). Trash it.
>I also use a CTO to control timing advance: Manifold vac <155° and ported vac
>above that. Cost is $20 but well worth it. Grand Wagoneer technology.
>
>Jim
>
>88 Grand Wagoneer
>89 Wrangler
>00 Grand Cherokee
After a bit of Google searching I did come to realization that the
sol-vac was now dead.....thanks.
With my limited knowledge on these things I don't quite understand how
the CTO could control vac advance.
http://www.off-road.com/jeep/tech/258bbd/images/CTO.jpg
The CTO is a switch isn't?
>In article <gmiitvo95th2omhg9j94colm59jijuc5cl@4ax.com>, Jeepster
><me@excite.com> writes:
>
>After Nutter:
>>I did notice that the sol-vac doesn't seem to respond and I was
>>wondering if I should bother to repair this as I thought they were
>>really only needed on automatic transmissions.
>>
>This is non-functional after the Nutter. The computer used to use that to raise
>the idle at starting (~1100 for 30 sec then 900 for 2 min I think). Trash it.
>I also use a CTO to control timing advance: Manifold vac <155° and ported vac
>above that. Cost is $20 but well worth it. Grand Wagoneer technology.
>
>Jim
>
>88 Grand Wagoneer
>89 Wrangler
>00 Grand Cherokee
After a bit of Google searching I did come to realization that the
sol-vac was now dead.....thanks.
With my limited knowledge on these things I don't quite understand how
the CTO could control vac advance.
http://www.off-road.com/jeep/tech/258bbd/images/CTO.jpg
The CTO is a switch isn't?
Guest
Posts: n/a
Re: 87 YJ 258 Cold start problems (Long)
Never mind my last post I re-read your post and I think I understand.
You use higher vac until you get to 155 deg then it switches your vac
advance over to ported when the switch kicks in. Correct?
On 12 Dec 2003 15:26:39 GMT, jianryla@aol.com (Jim Boucher) wrote:
>In article <gmiitvo95th2omhg9j94colm59jijuc5cl@4ax.com>, Jeepster
><me@excite.com> writes:
>
>After Nutter:
>>I did notice that the sol-vac doesn't seem to respond and I was
>>wondering if I should bother to repair this as I thought they were
>>really only needed on automatic transmissions.
>>
>This is non-functional after the Nutter. The computer used to use that to raise
>the idle at starting (~1100 for 30 sec then 900 for 2 min I think). Trash it.
>I also use a CTO to control timing advance: Manifold vac <155° and ported vac
>above that. Cost is $20 but well worth it. Grand Wagoneer technology.
>
>Jim
>
>88 Grand Wagoneer
>89 Wrangler
>00 Grand Cherokee
You use higher vac until you get to 155 deg then it switches your vac
advance over to ported when the switch kicks in. Correct?
On 12 Dec 2003 15:26:39 GMT, jianryla@aol.com (Jim Boucher) wrote:
>In article <gmiitvo95th2omhg9j94colm59jijuc5cl@4ax.com>, Jeepster
><me@excite.com> writes:
>
>After Nutter:
>>I did notice that the sol-vac doesn't seem to respond and I was
>>wondering if I should bother to repair this as I thought they were
>>really only needed on automatic transmissions.
>>
>This is non-functional after the Nutter. The computer used to use that to raise
>the idle at starting (~1100 for 30 sec then 900 for 2 min I think). Trash it.
>I also use a CTO to control timing advance: Manifold vac <155° and ported vac
>above that. Cost is $20 but well worth it. Grand Wagoneer technology.
>
>Jim
>
>88 Grand Wagoneer
>89 Wrangler
>00 Grand Cherokee
Guest
Posts: n/a
Re: 87 YJ 258 Cold start problems (Long)
Never mind my last post I re-read your post and I think I understand.
You use higher vac until you get to 155 deg then it switches your vac
advance over to ported when the switch kicks in. Correct?
On 12 Dec 2003 15:26:39 GMT, jianryla@aol.com (Jim Boucher) wrote:
>In article <gmiitvo95th2omhg9j94colm59jijuc5cl@4ax.com>, Jeepster
><me@excite.com> writes:
>
>After Nutter:
>>I did notice that the sol-vac doesn't seem to respond and I was
>>wondering if I should bother to repair this as I thought they were
>>really only needed on automatic transmissions.
>>
>This is non-functional after the Nutter. The computer used to use that to raise
>the idle at starting (~1100 for 30 sec then 900 for 2 min I think). Trash it.
>I also use a CTO to control timing advance: Manifold vac <155° and ported vac
>above that. Cost is $20 but well worth it. Grand Wagoneer technology.
>
>Jim
>
>88 Grand Wagoneer
>89 Wrangler
>00 Grand Cherokee
You use higher vac until you get to 155 deg then it switches your vac
advance over to ported when the switch kicks in. Correct?
On 12 Dec 2003 15:26:39 GMT, jianryla@aol.com (Jim Boucher) wrote:
>In article <gmiitvo95th2omhg9j94colm59jijuc5cl@4ax.com>, Jeepster
><me@excite.com> writes:
>
>After Nutter:
>>I did notice that the sol-vac doesn't seem to respond and I was
>>wondering if I should bother to repair this as I thought they were
>>really only needed on automatic transmissions.
>>
>This is non-functional after the Nutter. The computer used to use that to raise
>the idle at starting (~1100 for 30 sec then 900 for 2 min I think). Trash it.
>I also use a CTO to control timing advance: Manifold vac <155° and ported vac
>above that. Cost is $20 but well worth it. Grand Wagoneer technology.
>
>Jim
>
>88 Grand Wagoneer
>89 Wrangler
>00 Grand Cherokee
Guest
Posts: n/a
Re: 87 YJ 258 Cold start problems (Long)
Never mind my last post I re-read your post and I think I understand.
You use higher vac until you get to 155 deg then it switches your vac
advance over to ported when the switch kicks in. Correct?
On 12 Dec 2003 15:26:39 GMT, jianryla@aol.com (Jim Boucher) wrote:
>In article <gmiitvo95th2omhg9j94colm59jijuc5cl@4ax.com>, Jeepster
><me@excite.com> writes:
>
>After Nutter:
>>I did notice that the sol-vac doesn't seem to respond and I was
>>wondering if I should bother to repair this as I thought they were
>>really only needed on automatic transmissions.
>>
>This is non-functional after the Nutter. The computer used to use that to raise
>the idle at starting (~1100 for 30 sec then 900 for 2 min I think). Trash it.
>I also use a CTO to control timing advance: Manifold vac <155° and ported vac
>above that. Cost is $20 but well worth it. Grand Wagoneer technology.
>
>Jim
>
>88 Grand Wagoneer
>89 Wrangler
>00 Grand Cherokee
You use higher vac until you get to 155 deg then it switches your vac
advance over to ported when the switch kicks in. Correct?
On 12 Dec 2003 15:26:39 GMT, jianryla@aol.com (Jim Boucher) wrote:
>In article <gmiitvo95th2omhg9j94colm59jijuc5cl@4ax.com>, Jeepster
><me@excite.com> writes:
>
>After Nutter:
>>I did notice that the sol-vac doesn't seem to respond and I was
>>wondering if I should bother to repair this as I thought they were
>>really only needed on automatic transmissions.
>>
>This is non-functional after the Nutter. The computer used to use that to raise
>the idle at starting (~1100 for 30 sec then 900 for 2 min I think). Trash it.
>I also use a CTO to control timing advance: Manifold vac <155° and ported vac
>above that. Cost is $20 but well worth it. Grand Wagoneer technology.
>
>Jim
>
>88 Grand Wagoneer
>89 Wrangler
>00 Grand Cherokee