Another stupid GPR question. - Ford Powerstroke Diesel Forum

 
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post #1 of 5 Old 11-09-2012, 08:44 AM Thread Starter
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Another stupid GPR question.

Ok so in my experience with electrical I have learned a few things. One is that a 12V 4-post solenoid is a 12V 4-post solenoid.

I bought my truck with almost a quarter million on it 5 years ago. I have seen some of you claim that the GPR is an annual replacement thing. This has been true for every single plow solenoid I have encountered over the years. The truck started ok back when it was being used regularly but that is not the case this year. I am planning on replacing the GPR soon but my regular parts store does not carry one for a 97 psd.

X parts store price $50-80
Y parts store price $40-60
Generic 12V 4 post solenoid $10

Anyone have any prior experience with being a cheap bastard such as myself or ideas on this? I figure that if the $10 part will work I oughtta be able to buy a few of them and keep both the trucks happy.
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post #2 of 5 Old 11-09-2012, 10:04 AM
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The best way to go would be the Stancor GPR

Here is a great write up on it- Welcome to guzzle's Stancor GPR replacement Mod Web Page


1995 F.250 Powerstroke E4OD 159k and climbing.
DIY Intake.
5" Diamond Eye

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post #3 of 5 Old 11-09-2012, 10:27 AM
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Quote:
Originally Posted by Rebelliousw0n View Post
One is that a 12V 4-post solenoid is a 12V 4-post solenoid.
Not always true! You must make sure that any relay you use on these trucks ia a "case-isolated" type and not a "case-grounded" type. If you try and use a case-grounded type, the glowplugs will not shut off. Personnally, I like the Stancor (now White-Rodgers) 586-902 relay as a replacement, but many folks also like the Western Plow relay (I'd have to search for the part number) that is quite a bit cheaper than the Stancor. Cheers!

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post #4 of 5 Old 11-09-2012, 10:58 AM
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You get what you pay for. Duty cycles of relays (and they're _relays_) vary broadly. For example, even a four-post case-isolated version of our starter relay would be an epic fail, because it's rated to be closed for only a few seconds at a time. Our GPRs need to be rated to remain closed for at least two minutes at a stretch.
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post #5 of 5 Old 11-09-2012, 02:26 PM
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Quote:
Originally Posted by Rebelliousw0n View Post
Ok so in my experience with electrical I have learned a few things. One is that a 12V 4-post solenoid is a 12V 4-post solenoid.

I bought my truck with almost a quarter million on it 5 years ago. I have seen some of you claim that the GPR is an annual replacement thing. This has been true for every single plow solenoid I have encountered over the years. The truck started ok back when it was being used regularly but that is not the case this year. I am planning on replacing the GPR soon but my regular parts store does not carry one for a 97 psd.

X parts store price $50-80
Y parts store price $40-60
Generic 12V 4 post solenoid $10

Anyone have any prior experience with being a cheap bastard such as myself or ideas on this? I figure that if the $10 part will work I oughtta be able to buy a few of them and keep both the trucks happy.
The Stancor is the cheapest

1996 F250 PSD Crewcab,auto,D 60 swap,3" dp, DIY air 4X4 Centurion
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