GPR on 99PSD Install ?'s

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May 13, 2006 | 02:24 PM

Grunt0311

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From: Paw Paw, MI

GPR on 99PSD Install ?'s

Okay, truck didnt want to start again this morning, so went to NAPA and bought new GPR part # GPR109. I am trying to install, but there are 2 relays, one in front that looks to be same size as what I bought, and one in the back a little smaller. So I am thinking one in front, but mounting holes are different. On the one currently on the truck, the holes are across from eachother at 12 & 6 oclock. On the GPR109 they are next to eachother at 3 & 6 oclock.

First, am I correct in assuming that the GRP is the relay in front, toward front of truck? And why are the mounting holes different?

Any quick replys are greatly appreciated as I want to get this in and be done with it.

Thanks
Bill

May 13, 2006 | 02:46 PM

Grunt0311

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From: Paw Paw, MI

Okay, I am going to change my mind on which relay I think it is. The front one, (bigger one) has a wire to battery on one big post, and wire to ypipe on turbo on other big post. I am thinking this is not it. The smaller one towards firewall has battery wire on one post, and 2 wires coming off of other big post, one yellow and one brown, and going somewhere in harness towards valve covers. I am thinking this is the GPR. Am I correct?

Thanks
Bill

Last edited by Grunt0311; May 13, 2006 at 02:58 PM.

May 13, 2006 | 04:12 PM

stockernavstar

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Gpr rear one. Aih front one. Bye the way do you have any pictures of the front relay? im reconntcting my aih to the relay and want to be sure of which terminal the power wire goes to.

May 13, 2006 | 04:35 PM

Grunt0311

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From: Paw Paw, MI

Thanks Stocker, that is the one I changed. I dont have any pics, but power wire ie. battery wire goes to passenger side terminal. Hope that helps.

Thanks
Bill