Hesitation

2004 PONTIAC GRAND PRIX
156,000 MILES • 6 CYL • 2WD • AUTOMATIC
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YETI64
  • MEMBER
  • 1 POST
My car will hesitate when accelerating on a hill or under a slight load. Happens from a stop or at speed. On ramp to highways with a slight incline will cause the hesitation. Recently had tuneup, oil change and changed fuel filter. Used injector cleaner three times.

With no difference.
Apr 9, 2008 at 11:00 PM
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THE KIDD
  • MEMBER
  • 4 POSTS
Hello,

This sounds like you have a problem with the MAF sensor which if it gets off a liltte will not trigger a check engine light.

Here are tow guides to help you get the problem fixed:

https://www.2carpros.com/articles/engine-hesitates

and

https://www.2carpros.com/articles/how-to-replace-a-mass-air-flow-sensor-maf

Please run down these guides and report back.

Cheers
May 5, 2008 at 4:20 AM
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CADDYCANFIELD
  • MEMBER
  • 1 POST
This thread is spot on. The MAF fixed my car.
May 6, 2018 at 10:40 AM
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