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The vehicle will start but will not accelerate car will move but only about walking speed one mile per hour
2007 GMC Yukon XL Denali

The vehicle will start but will not accelerate car will move but only about walking speed one mile per hour

(2007 GMC Yukon XL 1500)
This happens periodically not all the time sometimes you feel the car jerk just a little like a misfire or something sometimes you can shut the car off and you can start it right back up and it will accelerate most of the time it has to sit for quite some time
What seems to make the problem better or worse? have noticed that when it will not accelerate I have added injector cleaner to the fuel and it seems to run fine after that
How long have you had this problem? About the past 2 to 3 weeks
Tags: have noticed for the las, gmc, yukon xl denali
1 answer & 0 comments
Popular Answer
on July 13, 2019
Do you hear the engine "revving" when you depress the accelerator pedal? If there is no pedal response, it could be related to an electronic throttle body concern. If the engine revs but you don't move anywhere, it could be automatic transmission related.

Either way, do you have any diagnostic trouble codes in the memory of the processor?
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General Diagnosis
$88 - $111 Learn More
on July 13, 2019
Do you hear the engine "revving" when you depress the accelerator pedal? If there is no pedal response, it could be related to an electronic throttle body concern. If the engine revs but you don't move anywhere, it could be automatic transmission related.

Either way, do you have any diagnostic trouble codes in the memory of the processor?
Sign in to reply

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