GP fouling?
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Junior User
Joined: Jan 2005
Posts: 82
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GP fouling?
I had some hard starts this winter, so I decided to check the GP system and everthing checked ut fine. All teh GP's were testing good, but hte truck would struggle to start. I decided to replace a bang of my gps. When I removed them the element end was coated in a black baked on stuff. What is that, and is there an addative to deal with that? The reason I ask is I did GP's last winter and again this winter, I dont want to make it a yearly event!
Thanks!
Thanks!
Elder User
Joined: Feb 2005
Posts: 712
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From: Marietta, OH/Weirton, WV
What type of Glowplugs are you replacing them with? You should be using motorcraft ZD-11. All the others will not stand up very well due to the GP system that stays on for 2 min at startup.
Elder User
Joined: Feb 2005
Posts: 712
Likes: 0
From: Marietta, OH/Weirton, WV
Well the only plugs that are recommended here are the ZD-11...im sure others will agree with me. I an autolite or some other brand was used then it was probably why they burnt out. If I were you I would probable change all 8 GPs and put in brand new ZD11 and also change the GP relay. With all that good You should be good as new.
Last edited by jboard; Dec 24, 2006 at 03:56 PM.
