why does my car hesitate and cut out when I give it gas

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At first my car would hesitate when cruising along and I would have to accelerate quickly, but all of a sudden it does it now when just starting out slowly. The vsc and check engine lights have come on several times, when climbing steep grades it seems. I remove the battery cables and the lights clear until I put a load on the engine. The lights are not on now, but it cuts out all the time when applying gas. The car starts and idles fine. Thank you!

1rick1 in Chandler AZ

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Feb 24, 2014

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2 Replies

Popular Answer
ProfessorGon Feb 24, 2014

Have it scanned when the light is on for better information and then post the codes so we can help.

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1rick1on Feb 24, 2014

Thank you, I'll do that!

ProfessorGon Feb 24, 2014

Good deal

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globalhelperon Feb 24, 2014

could be mass air flow but the code would help

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1rick1on Mar 4, 2014

I cleaned the MAF sensor with MAF cleaner and replaced the K&N air filter with a regular one. This made a tremendous difference, but when idling, if the accelerator is depressed quickly there is a definite hesitation at first and then the engine revs normally.This also happens when driving and the accelerator is depressed quickly for increased speed, there is a momentary hesitation, but then the car responds smoothly and with the power it used to. Any suggestions? Thank you.

bigredhoon Sep 11, 2021

That is most likely the lag you feel because some engineer thought replacing the throttle cable with a drive by wire system would some be a good idea. When cars were built correctly, step on the gas cable moved the throttle plate and car accelerated. it is all computerized now, you have two throttle position sensors, sending a signal to the ECU to move throttle motor that moves the throttle plate. you can see where your lag comes from.

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