Glow plug relay issue - The 1947 - Present Chevrolet & GMC Truck Message Board Network

heritagewraith · 10-19-2019, 06:54 PM

1983 GMC 3500 6.2 Glow Plug issue.Key on, faded glow plug light, Changed relay. Old relay quit clicking. New Relay doesn't click either. The pink wire to relay is good and powers up with key on. Blue wire from relay to controller has no power. When key is turned to start (Ignition) absolutely nothing happens.

Also, when foot is off clutch voltmeter registers at 9 volts. When clutch is pressed Voltmeter goes up to 13 Volts.

Any Diesel guys out there??? I would greatly appreciate any help, please.

10-19-2019, 06:54 PM	#1
heritagewraith Registered User Join Date: Mar 2017 Location: Spokane Wa Posts: 28	Glow plug relay issue 1983 GMC 3500 6.2 Glow Plug issue.Key on, faded glow plug light, Changed relay. Old relay quit clicking. New Relay doesn't click either. The pink wire to relay is good and powers up with key on. Blue wire from relay to controller has no power. When key is turned to start (Ignition) absolutely nothing happens. Also, when foot is off clutch voltmeter registers at 9 volts. When clutch is pressed Voltmeter goes up to 13 Volts. Any Diesel guys out there??? I would greatly appreciate any help, please. Last edited by heritagewraith; 10-19-2019 at 08:28 PM.



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