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If the the check coolant light stays on in a 2002 Impala but the coolant level if OK what could be problem?
Wiki User
∙ 12y ago
check the level of the reservoir and the radiator
if both are filled to factory specs and check coolant message still appears
try removing battery for 5 minutes and reconnecting
AnswerTake your car to your mechanic to make sure the intake cover gasket is not leaking. Impalas with the 3.4 are notorious for leaks. The mechanic will install a new gasket with GM approved sealant and you'll be all set. It'll set you back at least 600 bucks unless your still under warranty. Answerit might be the coolant level module. go to www.impalahq.com and click on the how to link. it gives a good description how to replace it. AnswerYou may have a busted intake gasket, causing oil to leak into the radiator fluid, and vice versa. I'd take it to a good shop and let them take a look. Happened to my 2000 Impala. You'll have to get a oil change and coolant flush, along with seal replacement. AnswerMy problem was a bad coolant level sensor. The dealer wants $58 for a new one so I tried to fix the old one. By soaking the sensor in vinegar, it worked again for about a week. The sensor is very hard to remove without taking out the battery first (which is also very hard to remove).In the process of flushing out the coolant system, I removed the coolant reservoir which was coated with gooey deposits that would not wash off with detergent. I found that paint thinner quickly dissolved the deposits so I decided to try cleaning the coolant level sensor with the paint thinner also. So far, the sensor is working again so it appears that coolant sludge on the sensor was causing the problem. By the way, before cleaning the sensor, remove the 2 o-rings first because the paint thinner will ruin them. Also wash off any traces of paint thinner before reinstalling the reservoir or the sensor.
Wiki User
∙ 12y ago
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