runs rough/ no power

1995 GMC SIERRA
168,000 MILES
Avatar
JOE LIPPERT
  • MEMBER
  • 1 POST
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
Dec 28, 2011 at 12:33 AM
Advertisement
Avatar
DRCRANKNWRENCH
  • CERTIFIED EXPERT
  • 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
Dec 28, 2011 at 12:43 AM