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Runs rough/ no power

Tiny
JOE LIPPERT
  • MEMBER
  • 1995 GMC SIERRA
  • 168,000 MILES
5.7 liter runs rough. Replaced starter, altenator, spark plugs, wires, dist cap, rotor, throttle positioning sensor. Back fires out the throttlebody. Right exhaust manifold runs red hot. No power
Wednesday, December 28th, 2011 AT 12:33 AM

1 Reply

Tiny
DRCRANKNWRENCH
  • MECHANIC
  • 3,380 POSTS
Here are some links to some walk through diagnostics that cover every symptom you describe.
Here are the links;

https://www.2carpros.com/articles/engine-misfires-or-runs-rough

https://www.2carpros.com/articles/engine-backfires-while-running

https://www.2carpros.com/articles/engine-has-low-power-output
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Wednesday, December 28th, 2011 AT 12:43 AM

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