Question about Cars & Trucks
Your coolant temperature gauge could be bad,it's by the thermostat housing.
Posted on Oct 27, 2012
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Posted on Jan 02, 2017
SOURCE: 1994 gmc safari,no heat
sounds like a blend door problem gm uses plastic clips to hold actuator rods that tend to break easiest thing to do is take it to a shop that offers free heater checks. and let them check it out
Posted on Jan 16, 2009
Make sure you're using proper amount of coolant in the water. You could have dirty fins or something blocking the front of the rad preventing it from cooling enough or might be rad clogging up. If gauge goes over half way then I'd worry. I'd remove rad and use rad cleaner or get it cleaned professionally.
Posted on Jul 01, 2009
Well usually a thermostat is a cheap enough part that I would change it out just cause. Actually I just did that recently with my truck :) Also you can check and see if maybe the temperature sensor is bad and giving a false reading, but I would start with the thermostat if you haven't replaced it. You can always test it in water to make sure it's opening but most times it's easier to just replace. Good luck!
Posted on Jan 13, 2010
hi.. your coolant temp sensor may be getting a bad reading, it also opperates as a compensator so it may effect the power of the vehicle.. check that the engine is actualy hot when it says and your car will probably run alot better if you change it anyway..
Posted on Feb 10, 2010
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