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  1. #1

    Default Trailblazer won't go voer 2500 RPM

    Hey all,
    My wife has a 2003 Trailblazer and she was complaining that it wouldn't pass anyone or go 70 and that the RPM's wouldn't go over 2500. I just replaced the fuel filter and air filter after hearing that and it has the same problem. With the Trailblazer in park I mashed the throttle and it slowly got to just over 2500 RPM. If you goose the throttle it bogs down then slowly the RPM's will climb. No check engine light either. Any ideas?

    Thanks
    Herb

  2. #2

    Default

    I just sold my 2003 TB. Are you the original owner of truck? (ie. do you know the past service history?)



    Jamie

    2007 Ford E250(Work van) (Ya, Ya, shut up!)
    1996 GMC Sierra SLE 1500 5.7L/4L60E

  3. #3

    Default

    Quote Originally Posted by GPW200493 View Post
    Hey all,
    My wife has a 2003 Trailblazer and she was complaining that it wouldn't pass anyone or go 70 and that the RPM's wouldn't go over 2500. I just replaced the fuel filter and air filter after hearing that and it has the same problem. With the Trailblazer in park I mashed the throttle and it slowly got to just over 2500 RPM. If you goose the throttle it bogs down then slowly the RPM's will climb. No check engine light either. Any ideas?

    Thanks
    Herb
    On a 2003 I would look at something very likely as the next step -- a dirty throttle body.

    This fix is about $5 to $12 - the cost of a spray bottle of throttle body cleaner. It probably will take about 30 minutes or so of your time.

    Steve
    10 Chevy Traverse LT AWD
    02 Chevy Trailblazer LS (110K+ miles - loaded except for 4WD - WRECKED!)
    99 Chevy Cavalier LS (105K+ miles - commuter car)
    78 Chevy Suburban Silverado (454, 3/4 ton)
    62 GMC 3/4 ton Pickup (350 police interceptor)

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  4. #4

    Default

    could be the speed limiter. get a tune to remove the speed limiter.

  5. #5

    Default

    Thanks for the replies. I's a rev limiter. Never had that on a vehi9cle before.

  6. #6
    Sr. Mechanic John W's Avatar
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    Sep 2007
    Location
    St Peters, Nova Scotia, Canada
    Posts
    158

    Default

    That or check for a plugged catalytic converter.
    2000 4x4 Ext. cab 5.3 Z71
    2009 Corolla

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