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  1. #1

    Default 2010 Silverado slight hesitation on accel.

    5.3 V8 with 6-speed auto, 3.42 locking differential, towing package - 4500 miles on odometer.

    When coasting to slow down and then hitting the gas to speed up, there is a consistent 1 to 2 second delay before the engine responds and finally goes. This is annoying and not like my 2003 Silverado that responded nearly instantly, like a fuel injected engine was intended to.

    Took it to the dealer twice and they did the usual computer checks, etc. with no faults. Service manager said "this is normal, my Silverado does the exact same thing". Guess I'll rethink buying a Chevy next time.

    Does anyone have a similar issue and any suggestions for fixing it? Aftermarket chips?

    Thanks.
    Bruce.

  2. #2

    Default

    Welcome to the club, Bruce. Its in the computer, a combination of fly-by-wire throttle and traction control. Most of the aftermarket tuners are working on it. Hang in there.

  3. #3

    Default

    Thanks, I figured it was by wire, which means it can be changed. Can't wait!

    B.

  4. #4

    Default

    That hesitation can be removed. I have a 2007 with the 6.0. I recently got a black bear tune. The hesitation was removed, the speed limiter was removed. The truck really performs better and without 8.9 or 9.1 gas. I went with the 8.7 octane tune. The live tune ($250) was great.

  5. #5
    Jr. Apprentice IronBear's Avatar
    Join Date
    Sep 2013
    Location
    New Hampshire
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    Default

    Quote Originally Posted by bechis1 View Post
    5.3 V8 with 6-speed auto, 3.42 locking differential, towing package - 4500 miles on odometer.

    When coasting to slow down and then hitting the gas to speed up, there is a consistent 1 to 2 second delay before the engine responds and finally goes. This is annoying and not like my 2003 Silverado that responded nearly instantly, like a fuel injected engine was intended to.

    Took it to the dealer twice and they did the usual computer checks, etc. with no faults. Service manager said "this is normal, my Silverado does the exact same thing". Guess I'll rethink buying a Chevy next time.

    Does anyone have a similar issue and any suggestions for fixing it? Aftermarket chips?

    Thanks.
    Bruce.
    Hello,

    I have the same issue with my truck. It's a 2010 Silverado Z-71 LT Crew Cab with the apperance package, 5.3L engine. It only hesitates when it's warm, after take off from a stop. It's driving me crazy lol. I thought it was bad gas or something.

    My truck has close to 45K miles, it's been great but I would like to know what others are doing to fix the issue, and even gain more performance.Th

    Thank you

  6. #6

    Default

    Sounds like its the AFM acting up again...slowing down it usually goes to V4 and once you punch the gas a "slight" hesitation will follow...thats why i disabled it!...feels like a "normal" truck now

    2009 Chevrolet Silverado 1500 LT Z71 Crew Cab "All-Star Edition"

    Line-X'd Bed
    Line-X'd Custom Brush Guard(Heavy Duty)
    5.3L Flex Fuel
    Factory Black Running Boards
    BF Goodrich All-Terrain KO's(265/65R18)
    2" Rough Country Leveling Kit
    EGR In-Channel Vent Visors
    Exterior PLUS Package
    Interior PLUS Package
    K&N Drop-In Air Filter
    Bowtie Mud Flaps
    Cat-Back Dual Exhaust
    Black Bowties
    DeeZee Toolbox(Debadged)
    Diablo Sport Predator(AFM Disabled)
    ProFlaps
    Towing Mirrors
    Next Planned Mods
    Bigger Tires
    Aftermarket Rims

  7. #7
    Jr. Apprentice IronBear's Avatar
    Join Date
    Sep 2013
    Location
    New Hampshire
    Posts
    17

    Default

    Quote Originally Posted by ChevyBoy2009 View Post
    Sounds like its the AFM acting up again...slowing down it usually goes to V4 and once you punch the gas a "slight" hesitation will follow...thats why i disabled it!...feels like a "normal" truck now
    How do you disable the active fuel management?
    2010 Chevrolet Silverado Z-71 Crew Cab with appearance package.

  8. #8
    2010 GMC SIERRA CREW CAB (Silver) 4x4, ReadyLift 2.5" Level Kit, 305/60/18 Dick Cepek Mud Country, Go Rhino Nerf Bars, Husky Liners front and rear, Bushwacker Bed Rail Caps, SCT Programmer.

  9. #9

    Default

    I disabled it using a Diablo Sport Predator..."most" programmers should have that

    2009 Chevrolet Silverado 1500 LT Z71 Crew Cab "All-Star Edition"

    Line-X'd Bed
    Line-X'd Custom Brush Guard(Heavy Duty)
    5.3L Flex Fuel
    Factory Black Running Boards
    BF Goodrich All-Terrain KO's(265/65R18)
    2" Rough Country Leveling Kit
    EGR In-Channel Vent Visors
    Exterior PLUS Package
    Interior PLUS Package
    K&N Drop-In Air Filter
    Bowtie Mud Flaps
    Cat-Back Dual Exhaust
    Black Bowties
    DeeZee Toolbox(Debadged)
    Diablo Sport Predator(AFM Disabled)
    ProFlaps
    Towing Mirrors
    Next Planned Mods
    Bigger Tires
    Aftermarket Rims

  10. #10
    Jr. Apprentice IronBear's Avatar
    Join Date
    Sep 2013
    Location
    New Hampshire
    Posts
    17

    Default

    Quote Originally Posted by JimmyA View Post
    Thank you both Jimmy and ChevyBoy. I figured I would start with SCT first. My truck is all stock so hopefully they have something for me.

    Thanks,
    Pete
    2010 Chevrolet Silverado Z-71 Crew Cab with appearance package.

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