Question about 2000 Pontiac Grand Am GT

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The coolant smells bad

Would this be the cause for service engine light to come on it trys to run hot

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If your engine is running hot, yes that could cause light to come on, as well as a strange smell. Have it checked a.s.a.p. otherwise it could cost you a lot of money, if it hasn't already. Don't drive it if it's running too hot. Make sure you add coolant as needed before you try anything.

Posted on Feb 28, 2009

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Look at the coolant level color and smell (with cold engine - don't open the high pressure reservoir with engine hot as hot coolant may spray you in the face). If you have a blown gasket, the coolant color may become brownish and it may smell bad or the level will get lower even if you have just refilled the cooling system.

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