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Thread: Fuel issue

  1. #1

    Default Fuel issue

    I have a 2000 sivlerado 1500 5.3. I have 126000 on it. I have noticed over the last couple weeks when I get in the high rpms the truck hesitates a little like its not getting enough fuel. When I punch it from a dead stop it lacks power at first. Also if the truck sits for around 12 hours and I start it up it acts like its not getting enough fuel at first. Any ideas any known issues? I have already done a tune up and changed the fuel filter 2 months ago. Thank you.

  2. #2

    Default Fuel issue

    I have a 2000 sivlerado 1500 5.3. I have 126000 on it. I have noticed over the last couple weeks when I get in the high rpms the truck hesitates a little like its not getting enough fuel. When I punch it from a dead stop it lacks power at first. Also if the truck sits for around 12 hours and I start it up it acts like its not getting enough fuel at first. Any ideas any known issues? I have already done a tune up and changed the fuel filter 2 months ago. Thank you.

  3. #3
    Legend

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    Default

    I would send some seafoam through the gas tank, also have the fuel pressure checked as well.
    99 K1500 Suburban LT "THE BEAST"
    Hypertech III, K&N, true dual
    285/75/16
    ___________________________
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  4. #4

    Default

    Quote Originally Posted by vncj96 View Post
    I would send some seafoam through the gas tank, also have the fuel pressure checked as well.
    ^^^ I agree
    2002 Chevy Silverado & 1995 Ford Bronco

    02 Silverado: 50K miles, 20" Motto Rims, Flowmaster 50 Series
    95 Bronco: 160K miles, 4" Superlift, 33/12.5/15 Mickey Thompson
    01 Civic: 75K miles, DD
    -Erik



  5. #5

    Default

    Besides the Seafoam through the gas tank I would remove the throttlebody and clean both sides with Seafoam spray and a soft toothbrush. Your 2000 has a IdleAirControl (IAC) valve screwed on the side of the throttlebody. I would remove this and also clean with the Seafoam spray. Seafoam also has a relatively new spray can with a hose to clean the intake manifold. Won't hurt to do this also. You can see all the "how to" videos on there website.
    :cool:

    2005 Chevy Silverado Z71 Crew Cab
    6" Skyjacker lift w/Edlebrock dual front remote resoviour shocks, single rear remote. Rancho skid-plate.
    17" x 9" M/T Classic Lock Wheels, 35" BFG A/T or M/T tires
    4.10 PercisionGears w/factory locker, T/A Performance rear-end cover
    Banks CAI intake, ported throttlebody, JBA coated headers, over-sized Magnaflow cats, Magnaflow cat back exhaust, Diablo tuned
    B&M aluminum deep transmission pan
    Warn brush guard w/Warn 9.5 XP winch, PIAA bulbs, Line-X bedliner, AWS Black tool chest, Extang tonneau cover
    Weather Tech floor mats
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    One black Lab in rear seat.
    :glasses:

  6. #6
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    stephan's Avatar
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    Default

    I would check the fuel pressure. You can borrow a fp guage from most auto parts stores if you leave a $$ deposit. I would drive it with the guage installed & run it at these high rpms & see if your fp is dropping.
    1988 Chevy C-3500 2wd (no pic)
    350 c.i. 5.7 L Stock Block, 4 Bolt Mains
    L-31 Vortec Heads, Edelbrock Cam & Intake,
    Holley 650, Flowtech Headers, Magnaflow exh.
    Jet Trans 700R4, B&M Ratchet, 4:10 gears,
    3" susp. lift kit "shadetree"
    No rev limiter, No speed limiter lol


  7. #7

    Default

    I cheched my fuel pressure......it was only at 32psi so I replaced the fuel pump. no more problems..... thanks

  8. #8

    Default

    Glad to hear your problem is resolved!

    2009 Silverado 1500
    5.3L / 3.73 G80 / 4spd / 4x4 / LWB/ Ext Cab / HD Tow-Haul
    2.25in ReadyLift Level Kit / 3in blocks/ 3500lb HellWig / 265x65x17 Wrangler AT
    K&N Filter / AirRaid MIT / MagnaFlow 2.25" Dual Exhaust / HyperTech MaxEnergy

  9. #9

    Default

    I put a gauge on my truck this weekend. All my pressures were very low. My idle psi was at 32psi. I replaced the fuel pump and no more problems. Thanks guys

  10. #10
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    murdog94's Avatar
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    ****threads merged*******
    Mike

    Currently

    1997 Chevy S-10 Blazer 4X4 with 330K miles and counting (Hunting rig).

    2009 Saturn Aura XE (wifes car)

    2011 F-150 Crew 4X4

    "Hold it to the floor till you see God.... Then Brake!!!!"

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