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Wlfwo
New User
Dec 27, 2011, 10:29 AM
Post #1 of 9
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Head gasket? '99 chevy
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1999
Chevrolet
S10
4 cylinder (not sure actual size)
159,000
I will state with the exception of just the one time it has not overheated, it doesn't seem to get up to heat at all.
First we replaced the top hose that seemed to have a very small leak. It never overheated for this one.
Then we replaced the radiator (which developed a very nice leak) which was the only cause for it overheating.
It went along for a couple of months without issue, then started not warming up again until it wouldn't get much past the bottom line. Took it back to the mechanic and he said water pump, so I had him replace the water pump.
Other than to correct the leak, this did not solve the problem so replaced the thermostat (bought a fail safe one), that worked for about 24 hours and it's not warming up again. I do not seem to be losing any coolant and due to the weather am not sure if the exhaust is white or not. also makes it a bit difficult to do the cardboard at the exhaust test.
My mechanic says it's a blown head gasket, but I am not seeing anything that says blown gasket, I did google head gasket symptoms, it doesn't run rough, it doesn't seem to be leaking, it's not overheating (quite the opposite)
Here is what it is doing, temp is not getting much above the 100 degree line. Heater is not putting out warm air at all. Occasionally it don't want to start the very first time (not sure if that has anything to do with this, but since it does do it I will mention it). I am at my wits, not to mention my wallets end. Any suggestions would be welcome.
Thanks, Nancy
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Hammer Time
Ultimate Carjunky
/ Moderator
Dec 27, 2011, 10:38 AM
Post #2 of 9
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Re: Head gasket? '99 chevy
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If your only complaint is no heat, you could have a heater core that is plugged up from grungy Dexcool. Remove both hoses to the core and backflush it with a garden hose under pressure in both directions.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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Hammer Time
Ultimate Carjunky
/ Moderator
Dec 27, 2011, 3:57 PM
Post #4 of 9
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Re: Head gasket? '99 chevy
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No, I said if your only complaint was lack of heat. You may have air pockets in the system from either having a leak somewhere or never getting all the air out in the first place.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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Double J
Veteran
/ Moderator
Dec 28, 2011, 9:33 PM
Post #5 of 9
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Re: Head gasket? '99 chevy
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I'lll add my 2 cents ...
If it worked after the thermostat was replaced i would
be looking at the thermostat again..
I'll bet if you remove the T-stat you may find that the FAIL SAFE Stat
Is stuck open...these T-stats are terrible for this...
Had a few do this...i don't use them...go get a Regular 'Stant' Brand T-stat
Pep Boys is one of the chains that sells them...stay away from Autozone Fail Safe stats.
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Wlfwo
New User
Dec 29, 2011, 9:26 AM
Post #6 of 9
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Re: Head gasket? '99 chevy
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I took it elsewhere for a 2nd opinion and it was indeed the head gasket. I was really hoping not, but there you have it. ~sighs~ Thanks for all the suggestions though.
Nancy
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seriousfreedom
User
Feb 21, 2012, 10:47 PM
Post #7 of 9
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Re: Head gasket? '99 chevy
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not meaning to hijack this thread or anything and i apologize for this in advance but why is it that it seems when the gm motors now days hit 100,000 mile the heads start leaking???
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nickwarner
Veteran
/ Moderator
Feb 22, 2012, 8:56 PM
Post #9 of 9
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Re: Head gasket? '99 chevy
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Actually, you are hijacking this thread. That would be a question to pose under general discussions under its own thread. But these engines actually run quite well without major problems past 100,000. The difference is people quit bothering to look under their hoods anymore. People won't check their fluids. If they do look at a gauge its only because 3 lights and a chime told them to shut down the car. Even then they run the thing til it dies. Car manufacturers advertise things as maintenance free and the buyers think this means they never will fail and never have to be looked over. Any moving component car and will fail.
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