Let's Talk About Glow Plugs
Senior User
Joined: Jul 2014
Posts: 112
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From: Denham Springs, La.
I can only hear my glow plug relay when the hood is raised, standing by the truck.
Also you just about have to be an acrobat to ohm out glow plugs through the uvch. its much easier through the 40 pin.
Also you just about have to be an acrobat to ohm out glow plugs through the uvch. its much easier through the 40 pin.
New User
Joined: Oct 2012
Posts: 17
Likes: 0
Not for sure on this, but wouldn't it seem that the WTS light stays on for 7 - 12 secs. so the glow plugs have a chance to get hot before cranking begins? Curious to know how to tell if one or all of the plugs should be replaced?
Fleet Mechanic
Joined: Aug 2006
Posts: 1,465
Likes: 17
From: Jacksonville, FL
Originally Posted by J1mw
Not for sure on this, but wouldn't it seem that the WTS light stays on for 7 - 12 secs. so the glow plugs have a chance to get hot before cranking begins? Curious to know how to tell if one or all of the plugs should be replaced?
The only way to really check your glow plugs is to ohm them out, as mentioned above. If you do have to replace any, use only Motorcraft replacements, the aftermarket ones have been known to swell at the tip making it impossible to remove without pulling the head.
Fleet Mechanic
Joined: Aug 2006
Posts: 1,465
Likes: 17
From: Jacksonville, FL
The OD off light flashing means there are transmission codes being stored. As far as the parts store being able to read them, it is going to be highly unlikely, these trucks are not truly OBD II compliant and as such those readers rarely work. If I were you I would search for a member called Tugly he has an excellent link in his signature block for reader options, this will pay dividends over time....
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