GMC Acceleration Loss

2004 GMC YUKON
50,000 MILES • V8 • 4WD
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GMCGUY
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  • 2 POSTS
Have a 2004 GMC Yukon. When accelerating from a stop, sometimes there is a pause (no power) of about 1-2 sec. when it should be going 1st to 2nd gear. Dealer said the transmission is fine, but not sure what is causing this power interruption at low gear. Doesn't occur at any other time.
Dec 20, 2010 at 12:04 AM
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JACOBANDNICKOLAS
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Has the check engine light come on? Has the fuel pressure been checked?
Dec 22, 2010 at 3:45 PM
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GMCGUY
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Engine light does NOT come on. Fuel pressure is OK. Did have the transmission fluid changed, without any improvement.
Dec 22, 2010 at 6:57 PM
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JACOBANDNICKOLAS
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If that is the case, start by checking for vacuum leaks.
Dec 23, 2010 at 12:36 PM
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04DENALIGUY
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Hey GM guy did you ever figure out your acceleration problem on your 04 gmc Yukon, I too am having the same problem with mine?
Feb 21, 2015 at 5:35 PM