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2004 GMC Sonoma SLS Crew Cab 123 WB 4WD

2004 GMC Sonoma
Trim Info:
4-Wheel Drive, Crew Cab 4.7' Fleetside SLS
15 mpg city / 19 mpg hwy
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August 28, 2012, 12:58 pm

Douglas B
 

Question: temperature gauge

had a spritz leak on top of radiator repaired it but now temp gauge barely moves up and i feel no liquid movement in upper radiator hose does not seem to be getting hot by visual and smell see no steam or leaks anywhere ? truck did get hot when i had the leak on top is it possible water pump is bad but no sign of leaking from pump?


September 9, 2012, 9:37 pm

Elizabeth K
Expert Mechanic

Are you sure there is enough coolant in the system? If it is too low it will not register on the gauge. It is possible to have a bad pump without a leak, but it is not very common. You might want to try using an infrared thermometer gun to see if the temp at the thermostat housing is anywhere near the gauge, and in general to verify that water is moving through the system.


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