Shudder/stutter

2004 CHEVROLET TRAILBLAZER
126,000 MILES • 4.2L • 6 CYL • 2WD • AUTOMATIC
Avatar
JIMBO.D
  • MEMBER
  • 2 POSTS
Vehicle shudders/stutters on slight acceleration. Map sensor replaced, did not help. Hard acceleration. Has no issues. What could the issue be?
Aug 21, 2016 at 5:26 PM
Advertisement
Avatar
SATURNTECH9
  • CAR REPAIR CONTRIBUTOR
  • 30,869 POSTS
Have you checked the computer for codes yet?
Aug 21, 2016 at 5:56 PM
Avatar
SATURNTECH9
  • CAR REPAIR CONTRIBUTOR
  • 30,869 POSTS
Could be spark plugs or a coil failing.
Aug 21, 2016 at 5:57 PM
Avatar
JIMBO.D
  • MEMBER
  • 2 POSTS
No check engine light yet. Will check the plugs this evening. Thanks.
Aug 22, 2016 at 6:03 AM
Avatar
SATURNTECH9
  • CAR REPAIR CONTRIBUTOR
  • 30,869 POSTS
Alright keep me posted.
Aug 22, 2016 at 12:24 PM
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.