Overheating

Asked by S133pyBoy Nov 28, 2018 at 09:59 PM about the 1997 GMC Sonoma 2 Dr SLE Extended Cab SB

Question type: Maintenance & Repair

Just installed a new radiator.  Truck still
overheating. What should I look at next

2 Answers
22,290

Guru9FSV8 answered 5 years ago

There is a lot to this question, pressure test system to see if it is holding pressure, no air in system?, fans work?, thermostat working?, heater core plugged up?, how old is water Pump?, coolant temperature sensor turning fans on?, radiator cap holding pressure? What is your concentration on the coolant?

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Hopeithelps21 answered 5 years ago

Guru9fsv8 is right many things to check Personally id check the thermostat next (usually easy to do and cheap to fix) Heater core can likely be bypassed to check if its the problem (you tube your car model and year with heater core bypass) Then ya water pump next

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