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Author Topic: Fuel pump / cranking  (Read 175 times)

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lynnboy021

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Fuel pump / cranking
« on: June 25, 2019, 17:25:41 PM »

2002 north face..
I have 2 questions,

1. I installed a new fuel pump about 5 years ago and the new pump is so dang loud? The pump works great but is it supposed to be loud or should I replace it?

2. When going to start the truck the motor just keeps cranking like it has no fuel or spark and it does not give me any codes? Can it be the fuel regulator? 

Thanks
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ygmn

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Re: Fuel pump / cranking
« Reply #1 on: June 26, 2019, 04:55:45 AM »

Get fuel pressure gage and see what happens after you turn truck off...

Does the pressure bleed off or not?
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Randy

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Re: Fuel pump / cranking
« Reply #2 on: June 26, 2019, 10:33:40 AM »

So your saying you can hear the pump running when you turn the key to the run position without cranking for a few seconds.
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lynnboy021

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Re: Fuel pump / cranking
« Reply #3 on: July 4, 2019, 18:45:56 PM »

Sorry about the late reply... I hooked up a fuel pressure gauge today and with key on motor off gauge goes to 60psi then back to zero psi real quick... I replaced the fuel regulator and I get the same thing.... can it be a leaking fuel injector?
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enoniam

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Re: Fuel pump / cranking
« Reply #4 on: July 4, 2019, 19:33:37 PM »

Yes, it could be a leaking injector.  You may want to pull your plugs after doing your key on/off procedure that you just described and look / smell for fuel.
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lynnboy021

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Re: Fuel pump / cranking
« Reply #5 on: July 4, 2019, 19:47:13 PM »

I will try it tomorrow...
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Randy

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Re: Fuel pump / cranking
« Reply #6 on: July 5, 2019, 10:16:26 AM »

Sounds like you do have fuel pressure so it should start even though it should hold pressure for awhile. It may be something else, I would pull a plug and make sure you have spark while your under the hood...
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02 2500 Summit White-Loaded, Heated Leather Seats, Sunroof, Pioneer AVIC-Z3 Navigation System with back-up cam, front cam and Blue Tooth. Nelson Tune, UPD/K&N Intake, Dual Magnaflow SS Mufflers and 3" Tailpipes, Powermaster 225 Amp Alternator, Dual Optima Batteries, Full Traction 6" Lift with 305/70/17 Goodyear MT/R's and SSBrakes, Calipers and Rotors, E-Z Down Tail Gate.

More to follow...

22' Velocity Boat powered by 502 BB and Stage III Procharger 750+HP
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