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View Full Version : Glow Plugs cycle but dont heat up



mangas
11-08-2007, 22:02
I turn the ignition to run position and the glow plug light comes on for about 5 seconds than shuts off and than comes on again for 1 second. Thats it. Truck wont start. I know im getting fuel. I also checked the glow plug wires and they are getting juice for the same amount of time as the glow plug light on the dash. Could the glow plug controller be the problem? Its a Electronic Glow Plug System.

More Power
11-11-2007, 21:41
The stock 1985-93 glow controller will produce a variable first glow, depending on temperature. It could range from 5 seconds to about 8 or a little more. So, the 5 seconds could be normal.

What glow plugs are you using? Do they each check out OK?

Jim