RUNS ROUGH/ NO POWER

  • Tiny
  • joe lippert
  • 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 Answer

  • Tiny
  • DrCranknWrench
  • Expert
  • 3,458 posts

Here are some links to some walk through diagnostics that cover every symptom you describe.
Here are the links;

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

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

http://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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