Re: Losing Coolant and dropping oil pressure gauge
 

Not admitting that I have ever used the stuff, but it generally starts to
work immediately. If it's leaking into the combustion chamber though, that
is a lot of pressure to contend with. If you have coolant leaking into the
combustion chamber, the spark plugs will look OK. In fact they will look a
lot cleaner than they have a right to.

Earle

"tk" <thomas_kessler@comcast.net> wrote in message
news:1166209398.283068.6450@79g2000cws.googlegroup s.com...
> Checked the overflow bottle and it is fine too. Again did the Autozone
> pressure test and there is slow dropping pressure but no external leak.
>
>
> Stop leak is in after running it for about an hour last night. I
> pressure tested it againg this morning cold and the pressure drop is
> still there. How long does it take stop leak to work?
>
> Well if it's the head gasket then where is the coolant going then?
>
> Trans and Engine oil are not contaminated with coolant
> Spark plugs all look okay
>
> It's got me perplexed and at my wit's end so I am taking it to the
> dealer on Tuesday, Park Jeep here in Burnsville to have them continue
> diagnosing this and the oil pressure gauge too...
>
> Thanks,
>
> Tom
>
> Earle Horton wrote:
> > "DougW" <post.replies@invalid.address> wrote in message
> > news:PZAgh.17155$Rj.17001@newsfe19.lga...
> > > Earle Horton wrote:
> > > > If you have to use this stuff make sure that the engine is running
> > > > when you pour it in slowly, or you could lock up your water pump or
> > > > jam your thermostat open or closed.
> > > >
> > > > If it is not dripping on the ground, then a gallon a month has to be
> > > > 99.99% surely a head gasket.
> > >
> > > One thing not mentioned is the overflow bottle. If that sucker
> > > springs a leak it will drain coolant as you drive then suck
> > > air back into the radiator. As the radiator builds with air the
> > > boiling point goes down and then what goes out is mostly steam.
> >
> > One thing that I like about overflow bottles, is that they are made out
of
> > that kind of plastic that is going to dry out and crack after, say,
fifteen
> > years. Then it will be a special order part or no longer available, and
of
> > course shaped so that nothing but the exact replacement is going to fit.
> > You might have something here, which is why I said "99.99% sure".
> >
> > >
> > > The best thing to do is a pressure test. Simple, cheap, and Autozone
> > > has the tool on free rental.
> > >
> > A pressure tester won't find anything wrong with the overflow bottle, as
> > they are open to the air, so that should get a thorough inspection.
> >
> > Earle
>

Re: Losing Coolant and dropping oil pressure gauge
 

Not admitting that I have ever used the stuff, but it generally starts to
work immediately. If it's leaking into the combustion chamber though, that
is a lot of pressure to contend with. If you have coolant leaking into the
combustion chamber, the spark plugs will look OK. In fact they will look a
lot cleaner than they have a right to.

Earle

"tk" <thomas_kessler@comcast.net> wrote in message
news:1166209398.283068.6450@79g2000cws.googlegroup s.com...
> Checked the overflow bottle and it is fine too. Again did the Autozone
> pressure test and there is slow dropping pressure but no external leak.
>
>
> Stop leak is in after running it for about an hour last night. I
> pressure tested it againg this morning cold and the pressure drop is
> still there. How long does it take stop leak to work?
>
> Well if it's the head gasket then where is the coolant going then?
>
> Trans and Engine oil are not contaminated with coolant
> Spark plugs all look okay
>
> It's got me perplexed and at my wit's end so I am taking it to the
> dealer on Tuesday, Park Jeep here in Burnsville to have them continue
> diagnosing this and the oil pressure gauge too...
>
> Thanks,
>
> Tom
>
> Earle Horton wrote:
> > "DougW" <post.replies@invalid.address> wrote in message
> > news:PZAgh.17155$Rj.17001@newsfe19.lga...
> > > Earle Horton wrote:
> > > > If you have to use this stuff make sure that the engine is running
> > > > when you pour it in slowly, or you could lock up your water pump or
> > > > jam your thermostat open or closed.
> > > >
> > > > If it is not dripping on the ground, then a gallon a month has to be
> > > > 99.99% surely a head gasket.
> > >
> > > One thing not mentioned is the overflow bottle. If that sucker
> > > springs a leak it will drain coolant as you drive then suck
> > > air back into the radiator. As the radiator builds with air the
> > > boiling point goes down and then what goes out is mostly steam.
> >
> > One thing that I like about overflow bottles, is that they are made out
of
> > that kind of plastic that is going to dry out and crack after, say,
fifteen
> > years. Then it will be a special order part or no longer available, and
of
> > course shaped so that nothing but the exact replacement is going to fit.
> > You might have something here, which is why I said "99.99% sure".
> >
> > >
> > > The best thing to do is a pressure test. Simple, cheap, and Autozone
> > > has the tool on free rental.
> > >
> > A pressure tester won't find anything wrong with the overflow bottle, as
> > they are open to the air, so that should get a thorough inspection.
> >
> > Earle
>

Re: Losing Coolant and dropping oil pressure gauge
 

Not admitting that I have ever used the stuff, but it generally starts to
work immediately. If it's leaking into the combustion chamber though, that
is a lot of pressure to contend with. If you have coolant leaking into the
combustion chamber, the spark plugs will look OK. In fact they will look a
lot cleaner than they have a right to.

Earle

"tk" <thomas_kessler@comcast.net> wrote in message
news:1166209398.283068.6450@79g2000cws.googlegroup s.com...
> Checked the overflow bottle and it is fine too. Again did the Autozone
> pressure test and there is slow dropping pressure but no external leak.
>
>
> Stop leak is in after running it for about an hour last night. I
> pressure tested it againg this morning cold and the pressure drop is
> still there. How long does it take stop leak to work?
>
> Well if it's the head gasket then where is the coolant going then?
>
> Trans and Engine oil are not contaminated with coolant
> Spark plugs all look okay
>
> It's got me perplexed and at my wit's end so I am taking it to the
> dealer on Tuesday, Park Jeep here in Burnsville to have them continue
> diagnosing this and the oil pressure gauge too...
>
> Thanks,
>
> Tom
>
> Earle Horton wrote:
> > "DougW" <post.replies@invalid.address> wrote in message
> > news:PZAgh.17155$Rj.17001@newsfe19.lga...
> > > Earle Horton wrote:
> > > > If you have to use this stuff make sure that the engine is running
> > > > when you pour it in slowly, or you could lock up your water pump or
> > > > jam your thermostat open or closed.
> > > >
> > > > If it is not dripping on the ground, then a gallon a month has to be
> > > > 99.99% surely a head gasket.
> > >
> > > One thing not mentioned is the overflow bottle. If that sucker
> > > springs a leak it will drain coolant as you drive then suck
> > > air back into the radiator. As the radiator builds with air the
> > > boiling point goes down and then what goes out is mostly steam.
> >
> > One thing that I like about overflow bottles, is that they are made out
of
> > that kind of plastic that is going to dry out and crack after, say,
fifteen
> > years. Then it will be a special order part or no longer available, and
of
> > course shaped so that nothing but the exact replacement is going to fit.
> > You might have something here, which is why I said "99.99% sure".
> >
> > >
> > > The best thing to do is a pressure test. Simple, cheap, and Autozone
> > > has the tool on free rental.
> > >
> > A pressure tester won't find anything wrong with the overflow bottle, as
> > they are open to the air, so that should get a thorough inspection.
> >
> > Earle
>

Re: Losing Coolant and dropping oil pressure gauge
 

I have all the same symtoms on my 2000 Grand Cherokee 4,0 Ltd.

I know everything points to a head gasket but its twice the price to do
here in the UK.
Jeep have had my car for 2 days and they say it is NOT the head gasket.

There is no microscopic parts per million of oil in the water or water
in the oil
but I still get through a litre in 40 to 80 miles with no leaks or loss
of power.

Bob

Re: Losing Coolant and dropping oil pressure gauge
 

I have all the same symtoms on my 2000 Grand Cherokee 4,0 Ltd.

I know everything points to a head gasket but its twice the price to do
here in the UK.
Jeep have had my car for 2 days and they say it is NOT the head gasket.

There is no microscopic parts per million of oil in the water or water
in the oil
but I still get through a litre in 40 to 80 miles with no leaks or loss
of power.

Bob

Re: Losing Coolant and dropping oil pressure gauge
 

I have all the same symtoms on my 2000 Grand Cherokee 4,0 Ltd.

I know everything points to a head gasket but its twice the price to do
here in the UK.
Jeep have had my car for 2 days and they say it is NOT the head gasket.

There is no microscopic parts per million of oil in the water or water
in the oil
but I still get through a litre in 40 to 80 miles with no leaks or loss
of power.

Bob

Re: Losing Coolant and dropping oil pressure gauge
 

You might have one of those mysterious leaks that only happens when the
vehicle is totally warmed up. I have a Chevy truck a while back that was
losing coolant. I knew it was a leak because I would see a puddle of coolant
on the ground once in a while. A system pressure test showed no leaks. My
friend eventually found the leak. (He has a repair shop that is based on AC
and radiator repair) The way he eventually found the problem was to
pressurize the system with a pressure tester and let the truck run. If I
recall, he said it took about 90 minutes, but eventually a small pinhole in
the upper hose started spewing coolant. The thing absolutely would not leak
until it was at full operating temperature.

Chris

<realtreebob@yahoo.com> wrote in message
news:1166439689.392296.265190@73g2000cwn.googlegro ups.com...
>I have all the same symtoms on my 2000 Grand Cherokee 4,0 Ltd.
>
> I know everything points to a head gasket but its twice the price to do
> here in the UK.
> Jeep have had my car for 2 days and they say it is NOT the head gasket.
>
> There is no microscopic parts per million of oil in the water or water
> in the oil
> but I still get through a litre in 40 to 80 miles with no leaks or loss
> of power.
>
> Bob
>

Re: Losing Coolant and dropping oil pressure gauge
 

You might have one of those mysterious leaks that only happens when the
vehicle is totally warmed up. I have a Chevy truck a while back that was
losing coolant. I knew it was a leak because I would see a puddle of coolant
on the ground once in a while. A system pressure test showed no leaks. My
friend eventually found the leak. (He has a repair shop that is based on AC
and radiator repair) The way he eventually found the problem was to
pressurize the system with a pressure tester and let the truck run. If I
recall, he said it took about 90 minutes, but eventually a small pinhole in
the upper hose started spewing coolant. The thing absolutely would not leak
until it was at full operating temperature.

Chris

<realtreebob@yahoo.com> wrote in message
news:1166439689.392296.265190@73g2000cwn.googlegro ups.com...
>I have all the same symtoms on my 2000 Grand Cherokee 4,0 Ltd.
>
> I know everything points to a head gasket but its twice the price to do
> here in the UK.
> Jeep have had my car for 2 days and they say it is NOT the head gasket.
>
> There is no microscopic parts per million of oil in the water or water
> in the oil
> but I still get through a litre in 40 to 80 miles with no leaks or loss
> of power.
>
> Bob
>

Re: Losing Coolant and dropping oil pressure gauge
 

You might have one of those mysterious leaks that only happens when the
vehicle is totally warmed up. I have a Chevy truck a while back that was
losing coolant. I knew it was a leak because I would see a puddle of coolant
on the ground once in a while. A system pressure test showed no leaks. My
friend eventually found the leak. (He has a repair shop that is based on AC
and radiator repair) The way he eventually found the problem was to
pressurize the system with a pressure tester and let the truck run. If I
recall, he said it took about 90 minutes, but eventually a small pinhole in
the upper hose started spewing coolant. The thing absolutely would not leak
until it was at full operating temperature.

Chris

<realtreebob@yahoo.com> wrote in message
news:1166439689.392296.265190@73g2000cwn.googlegro ups.com...
>I have all the same symtoms on my 2000 Grand Cherokee 4,0 Ltd.
>
> I know everything points to a head gasket but its twice the price to do
> here in the UK.
> Jeep have had my car for 2 days and they say it is NOT the head gasket.
>
> There is no microscopic parts per million of oil in the water or water
> in the oil
> but I still get through a litre in 40 to 80 miles with no leaks or loss
> of power.
>
> Bob
>

Re: Losing Coolant and dropping oil pressure gauge
 

I also had one of those recently. Drove me nuts until I noticed my
battery was covered in coolant. Same deal a mini pin hole that would
only open up at highway speeds when it was really hot.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Canadian Off Road Trips Photos: Non members can still view!
Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
(More Off Road album links at bottom of the view page)

c wrote:
>
> You might have one of those mysterious leaks that only happens when the
> vehicle is totally warmed up. I have a Chevy truck a while back that was
> losing coolant. I knew it was a leak because I would see a puddle of coolant
> on the ground once in a while. A system pressure test showed no leaks. My
> friend eventually found the leak. (He has a repair shop that is based on AC
> and radiator repair) The way he eventually found the problem was to
> pressurize the system with a pressure tester and let the truck run. If I
> recall, he said it took about 90 minutes, but eventually a small pinhole in
> the upper hose started spewing coolant. The thing absolutely would not leak
> until it was at full operating temperature.
>
> Chris
>
> <realtreebob@yahoo.com> wrote in message
> news:1166439689.392296.265190@73g2000cwn.googlegro ups.com...
> >I have all the same symtoms on my 2000 Grand Cherokee 4,0 Ltd.
> >
> > I know everything points to a head gasket but its twice the price to do
> > here in the UK.
> > Jeep have had my car for 2 days and they say it is NOT the head gasket.
> >
> > There is no microscopic parts per million of oil in the water or water
> > in the oil
> > but I still get through a litre in 40 to 80 miles with no leaks or loss
> > of power.
> >
> > Bob
> >