Question about 2002 Oldsmobile Alero

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02 alero Last week my car overheated once so i took it to the friendly mechanic down the road with the thermostat i bought. He indeed said that the thermostat was bad an changed it for me.. Re supplied the coolant an i drove it a whole week with no problems at all. So tuesday morning i headed out to go to the store and the ding ding sound came on an indeed it was overheated. I pulled over, the coolant tank was bone dry and so i filled it to the appropraite level an went straight home which was about 5 miles. The gauge stayed half way the whole time. When i got home i took the kids inside and went out to check the coolant level and then agian it was bone dry.. Do you think its a blown head gasket???

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From what it sounds like yes it seems you have a blown head, check the oil to make sure there is no coolant mixed in with it, you would see green drops or it would look like whitish chocolate milk, there shouldnt be any unless you have a cracked block, but mostlikley you have a blown head since i dont think the intake runs coolant through it on these models do you smell a sweet scent from the exhaust? or does exhaust blow white smoke under acceleration? these are signs but from what your saying pretty sure you need a new HG, good luck let me know how it goes
if you take it to a shop they can do a leakdown test on the cylinders and if head gasket is blown you will see bubbles comming up out of the radiator when uncapped.


Erik
U.S. Army

Posted on Dec 11, 2008

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