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  1. #1

    Default Removing speed governor

    I have a 2007 Chevrolet Silverado 1500 with the 5.3 engine. It appeared to loose power about 92 MPH, but I soon found out there was a factory installed, computer speed governor. I hear that this can be removed by a code change in the computer and that is accomplished by what? Do I need to buy one of the computer diagnosis devices? If so, which one is best, for this task?

  2. #2


    Just about any of the off-the-shelf handheld units will be able to remove or increase the speed limiter. Such as Hypertech, Flashpaq, Edge, etc. If you'd also like to see an increase in performance, you might want to look into a custom tune. They're typically about the same price (or cheaper) and offer much better improvements than the handhelds.

    2009 GMC Sierra Denali AWD

  3. #3
    finalday7's Avatar
    Join Date
    Oct 2007
    Sayward, B.C Canada


    Yeah but if your just looking to remove the gov, any speed shop with software can do it for you pretty cheap.

    2007 GMC Sierra CrewCab 4.8L
    Tinted Windows, 20" Chrome MB Predators on 275/55/20 Copper AT's, GM Bed Rug, Speed Scene Chrome Grille, Putco Chrome Handles, Hypertech Max Energy Programmer, Magnaflow Muffler and many more mods to come.
    Former GM Vehicles:
    96 Chevy Camaro. My first car modded for a High School kid.

  4. #4
    Sr. Mechanic crane3447's Avatar
    Join Date
    Jan 2008
    Calgary ,Ablerta
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    I bought a Pomer Pup from bully dog and it did the job quite nice. I ve had my '04 up 195 kph( 120 mph) but I stoped there. Lots left though. Was truning over at around 4300 rpm.

    "I'm not mean... your just a sissy"

    '04 silverado 1500 2wd 5.3 (47,000K) - baby
    '97 serria 4x4 2500 454 (121,000K) - beast
    '07 saturn vue V6 (17,000K) - wife's
    '93 ck3500 4x4 6.5 desiel (300+ adding every day)
    - best of all. I don't pay for it!!!

    '04 colarado Z71 3.5 (should have been yellow. complete lemon!)
    '91 serria 2500 2wd 454 (sold at 320,000) - tank

  5. #5
    Sr. Engineer
    TomsHHR's Avatar
    Join Date
    Feb 2007
    Superior Wis
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    A fellow HHR owner found to get around the 108 mph limit, you shift the auto into "I" gear and stomp it. He has had his at 118 and was able to do more but was smart and slowed down.. He said it would of done over 120.

    Me, I am happy with the 75 - 80 range and the better gas mileage..

    Yabba Dabba Doosie.... Made it to Post 100..
    2009 Chevy Sliverado Std cab 5.3, 4 speed Auto 2wd, Trifecta Tuned
    1926 Model T Bucket powered by Chevy LS 5.3 TH350 and S-10 rear axle Build period Sept 7, 2010 to April 2011
    1979 Starcraft Islander 221 Great Lakes Fishing Boat
    SOLD: 2006 Chevy HHR The Deer Slayer.

  6. #6

    Default need a programer or super chip

    am not trying to buy a performance chip i need some one or shop that already has the software for an 07 gmc sierra i able to gt better gs miles and hp....asap dallas tx

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