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glow plug relay?

  #1  
Old 09-11-2018, 10:20 AM
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glow plug relay?

Is there a difference between the glow plug relay and the starter relay? I don't think my glow plugs are coming on my truck cranks longer than before to start. I'm not sure , it is not smoking at startup but the glow plug relays are over 50.00
 
  #2  
Old 09-11-2018, 10:33 AM
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Yes they are different.
Check all battery and starter connections.
Also have you batteries load tested individually from each other
 
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Old 09-11-2018, 11:11 AM
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Here you go if you want to know WHY they're different.

https://www.ford-trucks.com/forums/1...l#post18121876
 
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Old 09-11-2018, 11:18 AM
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Thanks, that is a good write up. I will start testing tonight. the batteries have sat for months and drained all the way down a few times. they are a year old. Because of the disassembly i have done and recoating everything metal I'm not 100% sure if I wired everything correctly and or did I missed a ground somewhere. The GPR looks original to the truck. rusty LOL.
 
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Old 09-11-2018, 03:05 PM
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Thumbs up

I did that Stancor one. The one I pulled off mine when I was going through the GP system was very old and corroded. I cannot tell the difference from a good quality Motorcraft one versus the Stancor, but seems like lots of people do this mod.

Monster White-Rodgers Glow Plug Relay
 
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Old 09-11-2018, 04:27 PM
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Yes! another Mod! well for 50.00 I may as well go monster right?
 
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Old 09-11-2018, 05:02 PM
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I used a western plow relay. About 1/3 the price and works great.
 
  #8  
Old 09-12-2018, 06:09 AM
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the stancor relay has been in my 88 for around 20 years now.
 
  #9  
Old 09-12-2018, 11:16 AM
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Mine is working fine. I may need to check the GP. Do they burn up if the ignition is left on?
 
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Old 09-12-2018, 01:55 PM
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https://www.napaonline.com/p/ECHGPR109

If you ask for it by part number it is much cheaper. Or order online and pickup in store.

You can kinda tell if your plugs are working by the voltmeter. If it draws way down for a couple minutes after you turn on the key.
 
  #11  
Old 09-12-2018, 02:26 PM
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I do remember a flux in power when it started like they were cycling. It may be fine It just seems like it cranks over longer now. My Chevy blazer diesel starts up instantly and it is an 86
 
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Old 09-12-2018, 02:33 PM
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Try jumping the two big post with a screwdriver for 45sec. Then try to start. If it starts faster bad gpr
 
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Old 09-12-2018, 02:49 PM
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Originally Posted by 867.309 View Post
https://www.napaonline.com/p/ECHGPR109

If you ask for it by part number it is much cheaper. Or order online and pickup in store.

You can kinda tell if your plugs are working by the voltmeter. If it draws way down for a couple minutes after you turn on the key.
i never had one of them last more than a year or so. it is much better spending the $55 and getting the stancor, and never having to worry about it again.
Monster White-Rodgers Glow Plug Relay
 
  #14  
Old 09-12-2018, 04:40 PM
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You can pump out the glow plugs to check their condition. If you do need a GPR I would suggest the Stancor. About 10 years on mine. I feel like it helps the glow plugs. I am sure it provides less less resistance when under heavy load
 
  #15  
Old 09-12-2018, 04:42 PM
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I was going to change the stupid auto correct but I changed my mind. Obviously you ohm out the glow plugs. Not pump them out!! Lol
 

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