sticking thermostat, fan clutch or waterpump. all have tell tale signs.
where is the temperture sensor located on a 2002 chevy trailblazer with a 4200 motor
should be in the middle of the temp guage.
located coolant temp sensor
The outside temp sensor is located up in the front upper rad area. You will see the connector if you pop off the front grill. We have all the answers you need at www.trailvoy.com managed by enthusiasts for enthusiasts.
around 220
It is cost prohibitive.
The 4.2 or the 5.3 engine?
Trouble code P0128 means:Coolant thermostat (coolant temp below thermostat regulating temp)
My Knowledge is temp. coolant sensor the small one.
Trouble code P0128 means:Coolant thermostat (coolant temp below thermostat regulating temp)
Possible causes: low coolant level; thermostat stuck in the closed position; faulty water pump.
Most likely culprit is the ECT (engine coolant temperature) sensor. It can give this code and still not read high on the temp guage.