overheating 02 trailblazer

Asked by Tiffany Feb 21, 2017 at 07:12 PM about the 2002 Chevrolet Trailblazer

Question type: Maintenance & Repair

New water pump, thermostat,  new fan clutch.  Still
overheating 115000 miles

8 Answers

220,505

Was the cooling system purged from air when refilling the cooling sytem? youtube.com/watch?v=xeTgmdRkQtY

10 people found this helpful.
130

I have a 03 trailblazer that is over heating I changed the water pump , fan clutch , thermostat, still over heating any ideas what it can be??

13 people found this helpful.
20

I have a 02 trailblazer and I had a bad head gasket it was blowing the Exhaust through the Radiator and it was over filling my coolant Reservoir and pushing all the coolant through the drain tube

2 people found this helpful.

Just went through this overheating dilemma on an ‘02 trailblazer. Chemical test showed no mixing of exhaust in coolant. No coolant in oil or vice versa. Fan clutch good. New thermostat. Still overheating. Pulled thermostat out and test without, still overheats. Change radiator, install another thermostat , problem solved... plugged up radiator

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