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use a termo laser to check temp of coolant at filler cap ,with cap off run vehicle till you have hot heat coming out of your heater then check with laser. if it reads above 140 then you know 2 things . either the therm sensor is going bad or the temp gauge is bad , make sure the radiator fans come on ,if they do and you have good heat then you have bad gauge.
Connie this sounds like your thermostat in the engine is stuck open not letting the water stay in the engine block to heat up. The fix is to replace the thermostat with a new one that will allow the water to stay in the block to warm up. The typical symptoms of a stuck open thermostat is that the air will blow somewhat warm but never hot in the winter time, but it will take a few miles for the air to warm up at all. I would check with the dealership and find out what degree thermostat to replace it with. I run a 180 degree in the summer and a 195 degree thermostat in the winter just to have hot heat in the winter. I hope this helps
You have an air pocket in the engine that is preventing coolant circulation. Let the engine heat up and then shut it off to cool the engine back down. After doing this a few time the air pocket will usually work its way out.
Hope this helps:)
That temp gauge reading worries me. You might want to exchange the thermostat for a new 190F-210F thermostat (195F is good for summer, 210F really helps during winter). It should be a quick procedure.
During the winter time the engine may not produce enough heat to go half way. You can modify this by installing a hotter thermostat. But I would not go more that 20 degrees F though, or you could create issues for summer driving.
Did you check the temperature switch to make sure it was actually turning all the way to high or hot and not staying on cold or medium heat? May need a new control inside car dash.
your radiator could be getting stopped up. also water pump could be weak. during summer though you have electric fans that should be working. need to check. you can purchase some stuff called water wetter by redline racing oil that will drop water temp 20 degrees which is substantial when a thermostat is usually 180 to 190 and boiling is 212.
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