Are Glow Plugs Bad

[rpm427]

Wondering if glow plugs are bad as when I turn key on the solenoid starts to click immediately and truck is hard to start?

 

[lindstromjd]

Either that or you have bad connections to them. Check connections first. Then check glow plugs.

 

[rpm427]

What connections are you referring?

 

[lindstromjd]

The ones that actually connect to the top of the glow plug. Since your engine is a '94, they will be "bullet" shaped. Like the blue male/female crimp connectors you can get at a parts store.

 

[Agnem]

Read this thread..... http://www.oilburners.net/forums/showthread.php?66851-Correct-Voltage-at-glow-plug-connectors