Question about 1992 GMC Yukon

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92 yukon sputters at takeoff

Usually starts up fine, not the fuel pump or filter as we checked that. Has holes in cat so not clogged up. Driveable but sputters and wants to die if we step on the gas. Idles fine.

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  • mommymoon Jun 25, 2009

    no a misfire, more of a bogging down. Plugs and wires are fine. A way to test MAF sensor and where is it located?

  • mommymoon Jun 25, 2009

    no maf sensor

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Is this a missfire? have you replaced the MAF sensor which is a common cause of this, if over 100,000 miles replace plugs and plug wires as well.

Posted on Jun 25, 2009

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