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The engine temp sensor is on the front of the engine, next to the thermostat housing.The engine temp sensor is on the front of the engine, next to the thermostat housing.
A bad engine temp sensor can do that.
Assuming this is a 4.3L engine, the engine temp sensor is located between #1 and #3 spark plugs.
The oil pressure sensor is on the back side of the engine. It is above the oil pan, behind a heat shield.The oil pressure sensor is on the back side of the engine. It is above the oil pan, behind a heat shield.
on thw botttom
Never had a problem
heat sensor
The reason is it might be failing due to the heat.
heat sensor
The oil pressure sensor is on the back of the engine, above the oil pan, behind a heat shield.
Engine sensors will only "go bad" from environmental effects. Lack of oil causes excessive heat. Heat can cause cam sensor failure
A faulty temperature sensor can cause the ECm to think your engine is overheating, this turning the heat light on constantly. You should make sure that your engine isn't in fact overheating though.