I am overheating pum thermostat and fan relay all ok, what am I missing?
2005 GMC SIERRA
I have a 2005 gmc sierra with a 4.8 vortex engine. It recently began to overheat.I checked the water pump but it gives no sign of failure, I replaced the thermostat and the fan relay but it still is running hot. What do I try next?
have the same problem?
Sunday, September 23rd, 2012 AT 7:06 PM
Do you have coolant losses?
When does the overheating occurs?
Are the cooling fans working?