where is the fuel pump relay?
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RE: where is the fuel pump relay? - 10/19/2006 10:45:54 PM
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dodgerules86
Posts: 2710
Joined: 12/25/2003
From: Sycamore, Illinois (displaced to Arkansas)
Status: offline
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We've got another person on this board with a similar problem. I'll just tell you what I told them:
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In the pre-1992 dakotas, there wasn't a fuel pump relay. The fuel pump just got its juice from the automatic shutdown (ASD) relay. How, you might ask, do you know if your ASD relayy is good? Well, check to see if its getting spark, because the ignition coil is feed thru the ASD.
With that being said, I believe somewheres on the back, driver side of the frame (behind the rear axle I believe) there is a connector. The positive wire for the pump should be the dark green and black wire. The negative wire for the pump should be the gray wire.
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Well, since you know its getting spark. I would just do some wire tracing.
A quick question: If you keep trying to start the truck (keep the starter engaged) does it just take a while for the motor to start (get fuel)? It could be that your pressure regulator is crapping out. Thats how it is with my grandpas van, you have to crank the motor for about 5 or 6 seconds, but after that, it runs just fine.
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Current ride: Belleville 220 DES ST - leather, reinforced front end, tan color. Runs on ''alternative fuel'' :)
1996 Dodge Dakota
1986 Honda Civic CRX
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RE: where is the fuel pump relay? - 10/20/2006 8:08:24 AM
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greenray
Posts: 15
Joined: 9/24/2006
Status: offline
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i've laid on the key for as long as 20 seconds and it will just keep crankin'. the only thing that works is turning the key back and waiting half a minute. it only does it when hot and not all the time.
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RE: where is the fuel pump relay? - 10/20/2006 5:02:34 PM
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dodgerules86
Posts: 2710
Joined: 12/25/2003
From: Sycamore, Illinois (displaced to Arkansas)
Status: offline
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Hmm.. interesting. I mean, as long as the ASD relay is putting out power (as I said, simple test is check for spark) than the relay is good.
I would almost belive that it would have to be an electrical connection or a failing component.
The confusing part (for me as least  ) is that it, as you said, only happens when warm. I would say, "take the pump out and ops check it and check for voltage" but since it only happens when warm...
I dunno. I'll do some thinking and get back to you. Sorry  .
_____________________________
Current ride: Belleville 220 DES ST - leather, reinforced front end, tan color. Runs on ''alternative fuel'' :)
1996 Dodge Dakota
1986 Honda Civic CRX
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RE: where is the fuel pump relay? - 10/22/2006 11:22:52 PM
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greenray
Posts: 15
Joined: 9/24/2006
Status: offline
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could it be the fuel pressure regulator maybe flooding it. and waiting and crankin' on it dries it up and it eventually starts?
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