Might have a bad gauge. also might be a worn or faulty fan clutch cracked or leaking radiator leaking hoses or drain plug leaking heater core usually has damp or wet carpet on passenger floor from leak As you can see this is a multiple choice question... No one simple answer hope this helps you solve your problem
sounds like you need a good flush,of system.and change anti-freeze! check and make sure water pump is circulating coolant!! first.
When the thermostat and radiator were replaced, coolant could have dripped into an electrical connector or a sensor could be disconnected or damaged. Check the temperature sensor and crankshaft sensors first.
Maybe when new thermostat installed a vacuum hose was disconnected? Or perhaps a sensor was disconnected and was not noticed. I would do a visual check first looking for Hoses off and unplugged sensors. Then get the car scanned (free at autozone) Is the check engine light on ?
the fan relay sensor is out of it.
First check the water level. Low level will not get to the heater core. Change the thermostat. If you recently changed the thermostat, bleed the coolant system.
Replace the coolant temp sensor next to the thermostat housing.
If the coolant level is correct there are at least two reasons. First one is the thermostat and second one is the temperature sensor. You have to check basically the coolant level, the thermostat and the temperature sensor.
The first thing that I would check is the wiring and the temp sensor @ the engine. Sorry but I do not know where the sensor is located on the engine. Usually they are not too hard to locate. i would replace temperature sender usual located near front of engine near thermostat housing
it can, but i would check the ignition control module first....then the crank sensor.....
Try changing the coolant temp sensor, the one next to the thermostat housing.
Several things can cause a Multiple Cylinder Misfire. First and most obvious are your spark plugs and wires. If they havent been changed within the last year that you can remember its time to change them. Faulty Crankshaft sensor would also cause this to happen but is unlikely.
P0128: Engine Coolant Temperature is below the Thermostat Regulating Temperature Basically the Computer sees that the engine is running too cold. It could be that the thermostat is stuck open and the engine is actually too cold. Or it could be a bad temperature sensor, wiring to the sensor, or the PCM (computer) has a problem and is making a mistake. I would probably replace the thermostat and ECT (Engine Coolant Temp) Sensor first because both are inexpensive and relatively easy to change.