Well knowing these trucks as I do you must determine if it is really the temperature sensor that is gone out or if it is the thermostat, water pump, fan clutch or stepper motor in the cluster.
where is the temperture sensor located on a 2002 chevy trailblazer with a 4200 motor
location for 2003 chevy trailblazer coolant temperature sensor
REMOVE ALTERNATOR FROM DRIVERS SIDE OF ENGINE BLOCK.
seriously? it tells you what temperature you engine coolant/antifreeze is. that is how your gauge on the dash knows what your temperature is at.
The MAP sensor on a Trailblazer is the Manifold Air Positioning sensor. It is located on the top of the engine.
where is the O2 sensor on a 2002 chevy trailblazer
remove and replace engine coolant temperature(ect)/chevy 2004 trailblazer
where is map sensor on 2004 trailblazer
Where is the location of the cooling fan sensor on a 2002 Chevy Trailblazer? Also what is the 800 number for Chevy?
The cam sensor is located on the left side of the engine (as your looking at it) on the valve cover
front left of engine facing radiator.
The 1994 Chevy 454 cubic inch big block engine temperature sensor is located on the front of the engine. The engine temperature sensor will be a few inches above the thermostat housing.