Runs rough above half throttle or up hill at low.

Tiny
ANONYMOUS
  • MEMBER
  • 1995 CHEVROLET LUMINA
  • 180,000 MILES
Runs rough above half throttle or up hill at low engine speed I changed plugs and wires but that only raised the speed that the roughness seems to start
Thursday, January 3rd, 2013 AT 12:00 AM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Check the fuel pressure with a gauge if its within specs, also the exhaust system for excessive backpressure then report back your findings-we start here

https://www.2carpros.com/articles/engine-misfires-or-runs-rough
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Thursday, January 3rd, 2013 AT 12:06 AM

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