what to do next?

1999 PONTIAC SUNFIRE
10,000 MILES
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CHRIS ROBIN
  • MEMBER
  • 2 POSTS
my son drove home and car ran fine as usual. later start car to leave and car is idleing fine and will accellerate fine untill 3,500 rpm then drops to little less than 3,000 then surges back to 3,500 and then drops again. thinking maybe clogged fuel filter so replaced it and problem is still there.
Mar 18, 2012 at 1:09 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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RASMATAZ
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 75,992 POSTS
Check the fuel pressure if its within specs, test the throttle and manifold absolute pressure sensors
Mar 18, 2012 at 1:19 AM
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CHRIS ROBIN
  • MEMBER
  • 2 POSTS
thank you i'll get a gauge and ck it
Mar 18, 2012 at 1:29 AM