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Old 02-20-2013, 10:09 AM   #1
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Factory fuel pump question ???

What are the signs of a fuel pump going out , or do they just stop working all at once?


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2008 2500 CCSB 4x4 ,EFI Live, ATS IV TRANNY, Stainless Diesel 2nd Generation Swap 467.7 FMW, CNG, .
 
Old 02-20-2013, 08:08 PM   #2
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There's a few. Engine will fail to start. Run poorly, pop and buck under certain conditions, etc. obviously it's best to check lift pump pressure with a gauge to see actual numbers. An aftermarket lift pump such as AirDog is never a bad choice as a step up from factory.
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Old 02-21-2013, 06:34 AM   #3
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I am trying to figure out if my lift pump is going bad or if its the cp3 issue. When doing a short wide open throttle run it will fall flat on its face. As soon as I lift off the throttle its back to normal. I will try to get a gauge on the lift pump to see if my pressures are good.


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2008 2500 CCSB 4x4 ,EFI Live, ATS IV TRANNY, Stainless Diesel 2nd Generation Swap 467.7 FMW, CNG, .
 
Old 02-21-2013, 11:31 AM   #4
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Plug the rail relief valve to test or replace with a known good PRV.
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all my trucks are broke down

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Old 02-21-2013, 12:25 PM   #5
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I just read a post by you about three threads down about a fuel rail prd made by T&C. Who are they and where do I find info on them and their products. Thanks for the help and info.
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2008 2500 CCSB 4x4 ,EFI Live, ATS IV TRANNY, Stainless Diesel 2nd Generation Swap 467.7 FMW, CNG, .
 
Old 02-21-2013, 02:16 PM   #6
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Thanks Gibson


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2008 2500 CCSB 4x4 ,EFI Live, ATS IV TRANNY, Stainless Diesel 2nd Generation Swap 467.7 FMW, CNG, .
 
Old 02-21-2013, 10:05 PM   #7
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Your welcome bud
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all my trucks are broke down

2003 Dodge 2500 Cummins QC SRW


 
Old 02-22-2013, 10:19 AM   #8
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Wouldn't it throw a code if the PRV was cracking open? Mine does this exact same thing. I figured it was low FP but I haven't put a gauge on it either.
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Old 02-22-2013, 06:22 PM   #9
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I have no codes on mine, only the issues being discussed .


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