Question about 1999 Oldsmobile Silhouette

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Overheating I have the same problem my olsmobile is overheating, we replace the thermostate, water, pump radiador, and still the same . if somebody knows how to fix this problem please let us know thank you and god bless you.

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  • dna_jbi Jan 07, 2009

    yes the head Gasket was in good conditions because the oil was good, but after overheating so many times it got burn. so we know we got a burn head Gasket and other failiurs. Remenber we change the water pump, thermostat, Radiator and still the same.

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This one is out there but is it possible that the thermostat was not actually replaced? I replaced the thermostat in my 1999 Oldsmobile about a month ago and it is a relatively difficult procedure compared with other vehicles I have replaced the thermostat in. It took me about 3-4 hours. There are just 2 bolts to remove it but they are in a very difficult place to get your hands or tools into. Due to the difficult procedure is it possible that the mechanic did not actually do the work? If you used a trustworthy mechanic or if you were able to see the old parts I would continue to look for other solutions. Otherwise circle back around to the thermostat as one possibility. Also check make sure you have enough coolant in your vehicle. Take the cap of the radiator before you drive it that day. Make sure there is coolant to the top of the radiator and also check the over flow to make sure it is at it's proper level. There is a mark on the side of the over flow reserve to show the proper level. Good luck.

Posted on Feb 10, 2009

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Check Your Compression Maybe You've Blown Your Head Gasket

Posted on Jan 07, 2009

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I have the same problem my olsmobile is overheating, we replace the thermostate, water, pump radiador, and still the same . if somebody knows how to fix this problem please let us know thank you and god...


I have have the same problem with my 1999 Oldsmobile Silhouette. I solved the problem by adding more coolant. It has a slow leak some where that I have not been able to find. When the coolant gets low the temp. gauge heats up very quickly but then goes down quickly when you rev the engine. Adding coolant to the reservoir has fixed the problem until it gets low again.

Jan 07, 2009 | 1999 Oldsmobile Silhouette

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