Bad fuel pump? Cps question.
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Senior User
Joined: Jul 2006
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Bad fuel pump? Cps question.
I just noticed a puddle of diesel under my fuel pump in the valley. I suspect that my fuel pump is shot. I have also been having trouble with the truck running kind of shaky or jerky when it is lukewarm. Would a failing fuel pump cause this? I have check the ICP and there is no oil in the plug. I also unplugged it and the truck still ran erratically. Also, I want to replace the CPS just to rule it out. Where is the best place to get one?
Post Fiend
Joined: Oct 2003
Posts: 5,903
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From: MICHIGAN
You can get a CPS from the dealer under a recall campaign or from ebay ect. Get 2 and keep one for a spare. They cost $15-30 last time I checked.
Have you checked the fuel pressure...or changed the filter lately?
Have you checked the fuel pressure...or changed the filter lately?
Junior User
Joined: Jan 2007
Posts: 93
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From: East of Neckville NC
I was thinking the same thing? mine is doing this too. I'm going to check the FPR screen and shim it too. I changed the filter and it still did it?
Logistics Pro
Joined: Mar 2007
Posts: 4,579
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From: knoxville, tn
have you checked your tps? irradic running while driving could be a tps issue. you need to certain about the source of the leak before you replace the pump, it could be a cracked fuel filter housing, or just a leaking banjo fitting, use some paper towels to dry the valley out best you can, and use a flash light and a work mirror to confirm the culprit of the leak, it could save you some headache and $$$
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Senior User
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How would I check the TPS and where is it on the diesels? (pardon me I am somewhat new to these trucks)
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Postmaster
Joined: Sep 2007
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From: Medford Oregon
Check your fuel pressure as mentioned .. what is it? You can use a stick type tire gauge. Kind of messy but it will give you a good indication of fuel pressure.