Engine overheating

Asked by GuruVN6KB Aug 29, 2018 at 11:08 PM about the 2005 Chevrolet Trailblazer LT 4WD

Question type: Maintenance & Repair

Slowly runs warmer when idle in stop n go traffic.
When doing 40 it goes back to normal. New
radiator, new water pump, new belt, .05 Chevy
trailblazer

3 Answers
11,325

FJ4072 answered 5 years ago

Our gauges are garbage, with a scanner, what's the true temp when it does this? Should be right at your thermostat rating around 195, not around 210+ like the idiot gauge shows. Make sure your fan clutch is cycling and working. Could be your temp sensor too. Instead of throwing parts at it, see what the true temp is with a scanner.

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