Question about 1999 Pontiac Firebird
Thermostat is not opening, or is installed backwards is why the hose stays cold. Make sure the nugget is facing the engine block. If this is correct, make sure the belt is installed correctly and is rotating the water pump in the right direction. The fans are turned on by the PCM. You will need to get a diagnostic chart and follow it to find out what is going wrong.
Posted on May 28, 2009
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Posted on Jan 02, 2017
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