2002 chevy trailblazer engine codes.
2002 trailblazer throttle position sensor location.
Remove the large tube that goes from the air filter to the black plastic box above the throttle assembly.
Symptoms of a failed sensor.
Remove the electrical connection remove the retaining bolt and pull out old one.
This code is cause by either low coolant level or more likely a bad thermostat.
Experiencing noise from the throttle position sensor.
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Service type throttle position sensor tps replacement.
I believe the sensor is located in the front passenger side of the engine on this particular model.
While some of these symptoms could also be signs of other engine issues watch out for these symptoms of bad tps or throttle position sensor.
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My 2002 trailblazer coolant temp gauge is going from 100 to 260 then goes up and down i hook up my scanner and the ecm is doing the same thing i replaced the coolant temp sensor but im still having the problem please help.
Posted on aug 16 2008.
This indicator is a vague symptom as it could also point to.
The electronic throttle body or tac is located at position 2 in the picture above.
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I am guessing that you have a check engine light with code p0128 coolant temp below thermostat regulating temperature.
2007 chevrolet trailblazer l6 4 2l.
Rough idle and stalling.
If you can locate the two wires that control the throttle assembly then the throttle position sensor is on the other side of the throttle assembly.
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This is actually an easy swap out.
There are many symptoms of a failed throttle position sensor.
The most common symptom is your check engine light.
Remove that to get to the throttle position sensor underneath.
Service type throttle position sensor tps.
Where is the throttle body.
There is no such sensor.