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Why do my rpms raise 300 rpms and hang for a few seconds before the drop when I shift my 2001 GMC jimmy sls

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You mean 3000 rpms,could be tps sensor.

Posted on Apr 24, 2013

  • charles gill Apr 24, 2013

    No when I push the clutch in around 2000 rpm to shift the rpms will raise on there own and hang there. I've replaced tps cam senson fuel filter plugs and wires cleaned maf sensor and throttle body with no change at all.



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