Question about 1997 Chevrolet Cavalier
2.2 l Cavalier, we replaced the water pump, relay sensor and thermostat but fan will still not kick on and car overheats. If the car runs idle for just a few minutes it will start to "gurgle" as coolant is bubbled out of overflow. Straight wired the fan and it will kick on fine. What else could it be?
You may have a bad relay. Have you tested it to see if it is working or have you changed it out with a new one?
Posted on Dec 02, 2012
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Posted on Jan 02, 2017
SOURCE: 99 cavalier overheats
I was just having the exact same problem with mine!! (my 1999 Chevrolet Cavalier)
It turned out that replacing all of the parts you mentioned, I just had an air bubble in my system and needed to run it with the cap off and fill it up with water as the engine ran and the air escaped.
Hope that helps you!
Posted on Jun 02, 2009
You may have air in the cooling system. You should have a bleeder screw on the thermostat housing or heater tube depending on what engine is in it. With vehicle off and engine cool, open bleeder screw and fill radiator with coolant until steady stream of coolant comes out of bleeder screw. If this does not work proceed with computer diag for a faulty sensor or ecm.
Posted on Nov 24, 2009
If you unplug the coolant temp sensor the computer will turn on the fans because it doesn't know how warm the engine is. The computer is working like it is suppose to. I think you might have a bad coolant temp sender. If it was a problem with the fans or the relays, they wouldn't come on when you unplug the sensor, because the problem would still be there.
Posted on Mar 28, 2010
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