1995 Chevrolet Lumina Runs Rough Above Half Throttle Hill Low Engine Speed

1995 CHEVROLET LUMINA
180,000 MILES
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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
Jan 2, 2013 at 4:00 PM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 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
Jan 2, 2013 at 4:06 PM
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