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Gramps69 · 08-21-2009, 11:21 PM

I have a '69 GMC 1500 LWB with a 292 L6. It has less than 20k miles on the motor. My problem is that the temp guage shows it is overheating when in slow traffic or at an idle. When I check the radiator, it is not bubbling hot or overflowing. In slow traffic, if I rev the motor to about 1500 rpm, it seems to cool off. Any suggestions? Thanks for your help.

08-21-2009, 11:21 PM	#1
Gramps69 Registered User Join Date: Oct 2003 Location: Exeter CA Posts: 1	Help with temp guage? I have a '69 GMC 1500 LWB with a 292 L6. It has less than 20k miles on the motor. My problem is that the temp guage shows it is overheating when in slow traffic or at an idle. When I check the radiator, it is not bubbling hot or overflowing. In slow traffic, if I rev the motor to about 1500 rpm, it seems to cool off. Any suggestions? Thanks for your help. Last edited by Gramps69; 08-21-2009 at 11:39 PM.