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Chevy Silverado and GMC Sierra Fuel Pump/Fuel System

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  • no I haven't tried anything really yet...
  • I also have a 2001 GMC Sierra and have the same problem. Did you ever find out what the problem was and what was the fix? Please email me at n4urw@earthlink.net.

    Joel
  • jrob4jrob4 Posts: 1
    I have a 2000 2500 i think has a bad fuel pump but would like to make sure. Does anyone know how i can check pump?
  • 1. disconnect the fuel line turn the key on watch the fuel pump out.
    2. turn the key on listen for a wining noise from the fuel pump area.

    is your fuel gauge moving erratically?
    when is the last time you changed your fuel filter?
    any pulsing/surging while driving?

    the fuel pressure regulator will make hard starting
  • My 2000 Silverado 2500 w/6.0 sometimes has no power.Does not matter hot or cold,always starts and idles fine.Go to accelerate and will not pick up RPM.If you hold pedal steady eventually power comes back.Then will not act up until shut off again.Like I said doesn't happen all the time.Replaced fuel filter,checked fuel pressure@55psi,new air filter,spark plugs the whole gammet.Cleaned MAF sensor.Anyone else with the problem and what did it take to fix.
  • obyoneobyone Posts: 8,065
    Sounds like a problem with your throttle position sensor
  • Thanks for the quick response.Would that not trigger a check engine light?I plugged my Scan Guage in and no codes found.The TPS seems to be reading correctly which I can monitor with the Scan Guage.The degrees move with opening and closing of throttle.
  • fuel pressure regulator?
    easy to check, pull the vac hose off the regulator see if it has fuel in it
  • I have a 2003 chevy silverado 1500 and its attemting to start, but sputters & dies out. I got a new fuel pump less than a year ago. It is a non manufacture pump & was pricey. First I replaced the fuel filter, that worked.Then we put a new starter in (that wasnt the problem).After that I replaced the crank shaft censor; that worked for a few days. Then It did the same thing. I had it towed to a shop; they just replaced a fuse & it started and I drove it. The next day it wouldnt start again. The truck attepts to but sputters out & dies. I just am not sure what else it could be. Any ideas?
    Thank you,
    Tianna ?
  • hello,
    where is the regulator located?
    thanks again
  • up by the throttel body driver side, there is a small 3/16 dia. rubber vacuum hose connected to it. If you pull the hose and it has fuel in it the vacuum hose the regulator is bad.

    I think the cost is about $30 and take only a few minutes to change

    i can send a pic, email me tdebat@yahoo.com
  • go to this link, i posted the photo on the web since i've has numerous requests for the photo

    ">link titlehttp://www.leaseorsale.biz/truck/fuel regulator replacement.htm
  • Hey there guys.. read posts and seems my issue might be alittle different. I have a 2001 GMC 2500HD 4x4 and when I start the truck it justs cycles and doesnt start. Release the key and try to start again, the truck fires up. Thinkin possible dirty filter not allowing enough fuel in line??? Having no idle or accelaration issues...

    Also, after I start, my "LOW FUEL" light comes on and the gauge reads on empty. Then once I start driving the gauge jumps to the right level and the light goes out. When I come to a stop, within seconds the light goes back on and the gauge drops to "E". And so on and so on....

    Anything solutions would be great! Can this be a filter issue as well or might it be an electrical issue!

    Thanks!!!!
  • my guess, fuel filter
  • I have a problem with my 2001 silverado. I went to start it one morning and it started for a second or two then died. turned the key off turned it back on herd the pump run for 3 seconds then tried to start it. It started for 1 or 2 seconds and dies. I can repeat this over and over with the same outcome.
    If the pumps runs could there be another problem.
  • COULD BE FUEL FILTER, FUEL PUMP OR FUEL REGULATOR

    LAST TIME THE FUEL FILTER WAS CHANGED ? 50K OR MORE CHANGE IT NOW BEFORE YOUR FUEL PUMP DIES.

    IF THATS NOT IT CHECK THE FUEL REGULATOR, UNDER THE HOOD SEE PIC.

    http://www.leaseorsale.biz/truck/fuel%20regulator%20replacement.htm
  • thanks
    I checked fuel regulator hose and there is no fuel in it.
    one other thing I forgot to mention is the security light is on all the time now
  • got this problem starting my truck three of four times then it may start, stubbles coughs then dies it will start then its fine below 1/4 tank it wont its an o4 2500 bought a filter for it cant find it on the truck to replace it.any ideas
  • obyoneobyone Posts: 8,065
    Fuel filter is located inside the frame rail, just below the driver's side door.
  • Diagnose the problem instead of throwing parts at it. Usually when running problems occur with Vortec engines its either the fuel pump pressure or tune up related. Fuel pressure has to be a minimum of 55psi. Check the rail pressure with a guage.
  • Hello Everyone!

    After reading through ALOT of the messages here... I am quite surprised that there are so many people with fuel pump / filter related problems.

    I have had the worst possible thing happen to me my 2005 GMC Sierra 1500 Denali. I had the Transmission Radiator BURST inside my Coolant Radiator and had to replace my "Dual" Radiator, Water pump, all my hoses, Coolant Storage...etc. After all that I still have a problem and was curious to know if anyone can help. I have taken to numerous dealerships and talked to everyone I know and no one seems to be able to pinpoint the problem.

    So here it is:
    When I start up my truck... and it gets warm (optimal temperature being about 200 on my little temperature gauge :) and I press the gas pedal to give it gas...it "sputters" for lack of a better term. It's more like a vibration though, that I only really feel in the pedal and in the seat. I do not feel it in the steering wheel. As I drive I can actually control this problem...I can lightly press the gas pedal and it will start acting like it is starving for fuel... BUT I can push through this by accelerating and it will be ok for about 30 seconds then it will start again. If I let off the gas pedal and lightly press it again...it will once more "sputter." It does this no matter what speed I am at and continually gets worse the longer I drive it. 30 miles is about all I am able to take it down the road before it starts acting insanely worse and I am scared that it is just going to die ...... WHILE I am driving it.

    I have had the GMC dealership tell me there is nothing wrong with it. They told me "drive it till' it dies!" I can not believe they have taken this stand. I (although female and Definetly NOT a mechanic...KNOW that it is something with the FUEL) Whether it be the fuel pump or fuel filter (which is in my Fuel tank - stupidest thing ever) know one or both of these need to be replaced. The dealership totally disagrees and told me to get my tires checked (which I did - balanced, rotated and everything) Had my truck Tuned up, oil changed, fuids checked, Fuel injectors, throttle body cleaned, and with all the new parts it is practically BRAND NEW under the hood.

    So any idea my fellow GMC people?? Any (and I do me ANY) help would be much appreciated as I am scared to death of breaking down while driving 50-70 mph and losing control of my truck. I live in DC and it's not fun on the beltway in rush hour traffic.

    Thanks guys!
  • I am not really to sure as to what your issue might be. I do off road racing and during a particular race, I actually split a tranny line. Did not know it and when I would accelerate and get to a certain MPH, my vehicle would shake really bad. That was due to the tranny starving for fluid. Filled it up, patched the split and it went away!

    This may not have anything to do with your issue but you never know. Check your tranny fluid possibly get it flushed. When your radiator burst, you might have lost enough fluid to make this happen.

    Hope this helps! Good luck...
  • tkitten have you checked the fuel pressure regulator, usually if this bad you notice it at startups. here is a link to show a photo, its easy to check even for a women.

    http://www.leaseorsale.biz/truck/fuel%20regulator%20replacement.htm

    good luck
  • I did have the Transmission and the Radiator flushed (twice!) and all the fluids have been replaced and filled up.

    What do you mean though...when you say that you "patched" the split? In the transmission line itself? I only ask because we DID have a hair line fracture in our Transmission last year that we took to the dealership and had them fix for about $1,200.00. Do you think that all this may be my Transmission about the Go out???

    God I hope not, I just dropped $3,000.00 on this!

    I appreciate the quick responses..thank you.
  • I'm at work and will check it after I get off...but it doesn't seem to have any problems actually starting up...but it DOES have a slight rough idle to it. Nothing that anyone but myself can feel. But I have driven this vehicle for 4 years now and I know when it feels wrong. It almost seems to drive rough too...and that's after a Tune up.

    Any other ideas?? :sick:
  • Hi all, I've recently purchased a used GMC Sierra 2500 HD V8, and it seems to have a problem starting occasionally. For the second time, I have turned the ignition key and don't hear the fuel pump prime. Then it won't start. It did this a few weeks ago before work, but when I got home everything worked fine. Is this a common problem, and it it easy to fix or diagnose? Any help would be most appreciated.. :confuse:
  • READ THIS - WHAT YEAR IS YOUR TRUCK?

    link title
  • What I ment by patch was I actually cut a large piece of vacuum hose that went into my master brake cylinder and spliced that into the line where the split was. The damage occurred from a very large section of bumps that made my engine shift and the hose was pinched between the frame rail and the bottom portion of my alternator.

    In a race it is all about time. You gotta do what you can to keep moving. That repair took me about 15 minutes once the fluid was cool enough to handle on my hands. Sorry to hear about you paying $1200 for the repair…

    Good luck with your vehicle
  • mp12mp12 Posts: 2
    Can the 2009 Silverados or Sierras w/ 5.3 engine come without the active fuel management?
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