Glowplugs
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Laughing Gas
Joined: Mar 2006
Posts: 1,083
Likes: 1
From: Fitzpatrick Alabama
Glowplugs
Cooler weather has arrived and my 2000 f250 won't start. Wait to start light is coming on, no power passing through the two relays on top of the engine. Are both of these for glowplugs? My 97 only had one. How do I diagnose relays on this truck? If you cross out the two relays truck fires right off so I know the glowplugs themselves are good.
Posting Guru
Joined: Sep 2014
Posts: 2,404
Likes: 3
From: Asheville-where weird is
If you have to replace the relay, search the forums for Stancor relay. It is a good upgrade.
Here is an additional link: http://www.guzzle7pt3.com/s_gpr.php
Here is an additional link: http://www.guzzle7pt3.com/s_gpr.php
Cargo Master
Joined: Nov 2005
Posts: 2,768
Likes: 58
From: East Tawas, MI
I'll echo what JLH3 posted above. Go with a stancor. Very sturdy unit comparatively.
Your AIH doesn't react the same way as your GP relay. Plenty of threads in here to search on that so I won't whip a dead horse.
BTW, when was the last time your GP's were replaced regardless of todays performance.
If it's been 5 years, think of replacing them regardless. Think of it as a tuneup on a gasser. Cheap insurance and maintenance minded, a very inexpensive opportunity to avoid pulling a head if they decide to balloon on you.
Remember, every thing in Texas is big!
Denny
Your AIH doesn't react the same way as your GP relay. Plenty of threads in here to search on that so I won't whip a dead horse.
BTW, when was the last time your GP's were replaced regardless of todays performance.
If it's been 5 years, think of replacing them regardless. Think of it as a tuneup on a gasser. Cheap insurance and maintenance minded, a very inexpensive opportunity to avoid pulling a head if they decide to balloon on you.
Remember, every thing in Texas is big!
Denny
Thread Starter
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Laughing Gas
Joined: Mar 2006
Posts: 1,083
Likes: 1
From: Fitzpatrick Alabama
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Lead Driver
Joined: Jun 2007
Posts: 7,760
Likes: 27
From: Hampton, Maryland.
Did you look at the link that jhL gave you to Guzzle's website? That pretty much tells you everything you need to know on the relay. If you got it to fire up by jumping the lug on it before, it can't be the harness or UVCH, so maybe you got a bad relay from the auto parts store.
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