what can i do for my overheating 2002 trailblazer?

Asked by Claudia May 17, 2020 at 03:31 PM about the 2002 Chevrolet Trailblazer LTZ 4WD

Question type: Maintenance & Repair

my 2002 trailblazer over heats when i turn on the a/c. i have changed fan
clutch, radiator, thermostant . now wont eveen get to 1 block before
overheating. help

1 Answer
11,215

FJ4072 answered 3 years ago

Keep in mind, our gauges are horrible!! Hook it up to a scanner and see what the REAL temperature is. Should match your thermostat rating. If it's within spec, and not really overheating, replace your temp sensor, located right above your thermostat. If it's truly overheating, make sure you have coolant, you may try to burp it, may have air in the system causing it to overheat.

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