Intermittent Glow Plug Relay?
Thread Starter
|
New User
Joined: Oct 2004
Posts: 3
Likes: 0
Intermittent Glow Plug Relay?
I had the glow plug harness on my 92 F-250 replaced a couple of weeks ago (glow plugs were failing at a rapid rate)...had quite a bit of resistance in the harness. Initially, all seemed well.
As the temperatures have dropped (Alaska), I'm finding that when the temps are below freezing, the "Wait to start" light does not come on unil I have cranked the engine for a few seconds. Today it took about 20 seconds of cranking until the light came on, after which the engine fired right up.
There's no problem with the light/glowplug operation in warmer temps, or after the engine has been run for a while. Is it possible I've got a loose connection somewhere that get's reconnected with engine vibration? Perhaps a metal to metal connection is loose when the engine is cold, and as it warms up the connection tightens?
Any thoughts?
Thanks
Bob Gold
As the temperatures have dropped (Alaska), I'm finding that when the temps are below freezing, the "Wait to start" light does not come on unil I have cranked the engine for a few seconds. Today it took about 20 seconds of cranking until the light came on, after which the engine fired right up.
There's no problem with the light/glowplug operation in warmer temps, or after the engine has been run for a while. Is it possible I've got a loose connection somewhere that get's reconnected with engine vibration? Perhaps a metal to metal connection is loose when the engine is cold, and as it warms up the connection tightens?
Any thoughts?
Thanks
Bob Gold
Posting Guru
Joined: Oct 2003
Posts: 2,438
Likes: 0
From: Monroe, WA
The solonoid on my controller used to take spells where the light would come on, but the plugs weren't heating. I would leave the door open, watch the dome light and turn the key on and off till the light would dim. Not sure what would cause your problem other than a loose ground somewhere or a bad controller.
Senior User
Joined: Aug 2003
Posts: 269
Likes: 0
From: Cleveland/Akron, Ohio
The GP relay, just like a starter solenoid, can become sensitive to temperature. I have seen at least one time where one wouldn't work if hot, and another time where one needed to be hot to work.
Thread
Thread Starter
Forum
Replies
Last Post
glockholiday
1999 - 2003 7.3L Power Stroke Diesel
16
Aug 11, 2014 10:30 AM
GlennSwett
1999 - 2003 7.3L Power Stroke Diesel
144
Mar 13, 2014 11:08 AM
