Question about 2001 Oldsmobile Alero

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I have had to fill my coolant, but don't see where it is leaking from. There is no obvious leaks under the car. The add coolant light was blinking when I drove down the road and then the car started overheating. I immediately pulled over and turned off the car. Could this have damaged my engine. I added coolant and now the light has come on again. What could be the source of the leak?

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Most likely is the head gasket



Fill the system and start it up ,with the cap removed look at the header tank where you fill the radiatior is there bubbles coming up from the bottom put the cap on, then go around the back of the car and put your hand in front of the muffler outlet.

If you get a wet hand there is a leak on the head going into the pistons and getting expelled out of the muffler

Dip the oil , if it a bit like mayonaisse then the water is leaking into the sump

You can try products like Radweld and Ce-lit which can stop leaks on a temporary basis

If not it is a head off job

Posted on Jun 25, 2009

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Posted on Jan 02, 2017

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