2008 avalanche 5.3 overheati g

Asked by Clifford Jun 08, 2019 at 11:43 AM about the 2008 Chevrolet Avalanche LT 4WD

Question type: Maintenance & Repair

New thermostat, water pump, temp sensor, radiator, cooling
fans. Still running 220 degrees at idle. No signs of moisture
in oil or smoke from exhaust. If i sit in park and rev to 3000
rpm, it goes back down to normal 210 before very slowly
increasing to 220 again

1 Answer

Fans turn on as they should, both high and low speeds. Also replaced all 3 relays and fuses.

Your Answer:

Avalanche

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