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Or the thermostat might be faulty which raises the temprature at which the thermostat starts to open. Giving a high reading on the gauge. if it gets too hot you might be at risk of blowing a pype or head gasket. If so replace thermostat. Check for a loose wire to the temp sensor as well. See if the radiator fan turns on when temp rises. If not check a fuse or the radiator fan temprature switch might be faulty.
install pressure gauge and watch when key is turned off to see if pressure drops to zero if so bad drain back valve in fuel pump replace it or deal with it or could be cheap aftermarket pump and has hard time building unnecessary pressure to open poppet valves between before fuel injectors
The overheating and lack of cabin heat both point to a failed engine thermostat which would be stuck closed. At the warm up stage, the coolant stays in the engine block to bring the engine to efficient operating temperature, then it opens and circulates the coolant through the radiator and heat core. If the thermostat is stuck closed, the engine will overheat, and coolant will never reach the heater core, and you will not get cabin heat.
Blinking oil light at idle which goes away during driving could be a low oil level, but may also be a drop in oil pressue. You could have a clogged oil fliter (at best) pickup tube, or a failing oil pump.
The oxygen sensor has nothing to do with the fuel gauge. There are two possibilities for the gas gauge error, first it could be the in-tank gas level sensor or it could be a defective stepper motor which drives the gauge. A professional scan tool can determine the fuel level being sent by the in-tank sensor, if that disagrees with the gauge, then the stepper motor needs replacing.
Check the anti freeze level. It is to low the coolant sensor (not the temp. gauge sensor they are to different sensor) can make the computer to thing that the motor is to hot ( after it sits a short time the steam it the motor thinks it hot than what it is) making the fuel to lean. If it set longer but not to cold the sensor is not in the anti-freeze to will think it is colder and put to much fuel in.
Hi there, you are experiencing a water pump failure. this may be in conjunction with a faulty thermostat as well. i wouldn't drive this car until you replace the water pump and thermostat. it will only cause more internal damage. hope that helps and, thx for using fix ya:)
sounds like your low on coolant or you have air in the cooling system water is needed for the sensor to show a true value and if your low or have air you sensor will at times because of the thermostat opening go up and down. hope that got it
Its definitly a bad reading, you would know if your vehicle is overheating, you can usually smell it right away.I would say its your temperature gauge sending unit is defective, check the wires to see if they are well connected or broken. ask a backyard mechanic for assistance.