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Temp Gauge Reads Hot all the time and no heat

Temp Gauge reads hot, no heat in car, yes fan comes on and I changed the thermostate and added coolant. I also burped the rad too.
Help I have to save this car.

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  • Anonymous Feb 09, 2009

    Engine heats up normally but keeps rising up to the hot end. I DO have heat inside the car. The fluid in the overflow resevoir appears cool while radiator seems hot and the fan comes on.

  • Anonymous Mar 25, 2014

    same as above

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Air sometimes gets trapped in the heater hoses or heatercore itself pull the upper heater hose off the block,hold it in the air and try to fill it,that should push the air out of the line

Posted on Jan 26, 2009

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Double check the fluid level again, other option is a blocked heater core

Posted on Jan 26, 2009

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SOURCE: Temp Gauge Reads Hot all the time and i have heat

as soon as you turn it on after it has been shut off for how long? you could have a bad sensor. if you have a sohc (single overhead cam) engine you have a coolant temp sensor. if you have a dohc (double overhead cam) engine you have a cylinder head temp sensor. either way you will need to start with everything cooled off, drain the coolant, remove and replace the sensor. for the sohc engine you have to remove the ignition coil to get to the sensor, for the dohc you have to remove the alternator. in both engines you are supposed to torque the bolts that hold the sensor in place to 89 in-lbs, tight enough to not have a coolant leak at that point, and not so tight that you stretch the bolts or break them off in the block. if you still have a problem after you replace the sensor then you probably have a bad water pump. hope that helps.

Posted on May 26, 2009

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Be absolutely certain to "burp" every bubble of atmosphere from the coolant system too. Air bubbles have the amazing ability to prevent coolant flow and will cause all sorts of problems, especially if the bubble wants to hang around the temperature sensor location.

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Most Autozone, Advance locations will read engine problem codes at no charge, so drop by one of those locations and let them read the problem code.

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Temp Gauge Reads Hot all the time and i have heat


as soon as you turn it on after it has been shut off for how long? you could have a bad sensor. if you have a sohc (single overhead cam) engine you have a coolant temp sensor. if you have a dohc (double overhead cam) engine you have a cylinder head temp sensor. either way you will need to start with everything cooled off, drain the coolant, remove and replace the sensor. for the sohc engine you have to remove the ignition coil to get to the sensor, for the dohc you have to remove the alternator. in both engines you are supposed to torque the bolts that hold the sensor in place to 89 in-lbs, tight enough to not have a coolant leak at that point, and not so tight that you stretch the bolts or break them off in the block. if you still have a problem after you replace the sensor then you probably have a bad water pump. hope that helps.

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