GP controller/relay problem...
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Senior User
Joined: Feb 2010
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From: Bear, DE
GP controller/relay problem...
Well when I got the truck, i'd go to start it and the WTS light would come on then i'd here the plugs cycling, the truck would then start and the controller would cycle a few more times, at 10 seconds the most then turn off.
Now though, I go to start it and if cold the controller won't kick on, my over ride button won't even work to turn them on. Once the truck gets some heat though the relay starts clicking but sometimes it'll continue for 10 mins, after the truck is fully warm. I know that's not right.
My question is, can I just rewire my switch into a bypass and not use the factory setup?
Now though, I go to start it and if cold the controller won't kick on, my over ride button won't even work to turn them on. Once the truck gets some heat though the relay starts clicking but sometimes it'll continue for 10 mins, after the truck is fully warm. I know that's not right.
My question is, can I just rewire my switch into a bypass and not use the factory setup?
Lead Driver
Joined: Mar 2006
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From: western SD
The relay might just be bad. Get a relay for an 86 and replace the one on the controler with it. Yes you can rewire it to bypas the factory setup but if the relay is bad it still won't work.
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Senior User
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From: Bear, DE
Does it come off in a assembly? I guess I'll be doing that tonight.
Lead Driver
Joined: Mar 2006
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From: western SD
The controler comes off as an assembly.Unplug a couple of wires, and two bolts. Be careful of the wires on the relay, as one side will be direct to the battery. Unhook both battery grounds before starting. The relay is held on the controler with two bolts. This is what you need FORD DIESEL GLOW PLUG Relay 6.9 and 7.3 Powerstroke : eBay Motors (item 280440598829 end time May-17-10 17:34:14 PDT).
Lead Driver
Joined: Apr 2008
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My dads 92 has the same issue... no glow, but once you finally get it started, and some heat in the engine then the glow plugs will kick on on the next start.
I dont mean to hyjack. My problem is that my wts light comes on for about 7 seconds, but im pretty sure i have no power to the glow plugs. Cycle them once, twice, three times.. doesnt even phase it. I dont have a test light atm to verify this, but if anyone else has had a similar problem and know what the issue is i would love to hear some advice.
I dont mean to hyjack. My problem is that my wts light comes on for about 7 seconds, but im pretty sure i have no power to the glow plugs. Cycle them once, twice, three times.. doesnt even phase it. I dont have a test light atm to verify this, but if anyone else has had a similar problem and know what the issue is i would love to hear some advice.
Cargo Master
Joined: Mar 2010
Posts: 2,227
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From: Higginsville, MO
i had the same problem.... i just went down to orielly and got the whole controller and relay set up.... cost about 150 bucks but she fires right up every single time now.... and didnt have to modify anything or run wires and switches an what not
i bought the relay by itself first but that only led me to determine the controller was bad since they would then come on..... but never shut off
i bought the relay by itself first but that only led me to determine the controller was bad since they would then come on..... but never shut off
Lead Driver
Joined: Apr 2008
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lol, that sucks. Sadly $150 is out of my price range atm... i noticed the local pick a part has added a couple 7.3s to the place... even tho they got rid of my dents to make room for em... but anywho, might just pick up the relay and see what happens.
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Postmaster
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From: Elk City, OK
Methanoholic
Joined: Mar 2009
Posts: 6,442
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From: Maine (NorCal Native)
A test light is easy enough to build ... 12v Bulb and a couple of wires, get fancy with a pigtail and socket!
hairyboxnoogle: Test the glow plugs. Glow Plug Testing Procedure
-Enjoy
fh : )_~
hairyboxnoogle: Test the glow plugs. Glow Plug Testing Procedure
-Enjoy
fh : )_~
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Senior User
Joined: Feb 2010
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From: Bear, DE
Well it is non-turbo. But I think it'd take a little longer then 5 mins. I have to pull the whole assembly don't I? Then I gotta wire the new relay correctly. Never done this before either.
Methanoholic
Joined: Mar 2009
Posts: 6,442
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From: Maine (NorCal Native)
No, you don't need to pull the controller ... You can replace the relay on top of the controller without removing it... Wirings the same.
For things like that I use twist ties (from bread) to hold the groups of wires together to prevent scattering and confusion... Note a color in each of the (4) four groups and yur all set, put em back where they came from, remove the twist ties and enjoy the fruits (or miseries) of your labor!
-Enjoy
fh : )_~
For things like that I use twist ties (from bread) to hold the groups of wires together to prevent scattering and confusion... Note a color in each of the (4) four groups and yur all set, put em back where they came from, remove the twist ties and enjoy the fruits (or miseries) of your labor!
-Enjoy
fh : )_~