94gmc needs help

1994 GMC C1500
340,000 MILES • V8 • 2WD • AUTOMATIC
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RODNEYLS
  • MEMBER
  • 2 POSTS
94gmc stumbles at acceleration then runs strong tune up ,throttle body,distrutor,map sensor,coil,egr,all no change
Dec 11, 2010 at 7:40 PM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,992 POSTS
Inspect and test the throttle position sensor,knock sensor and EGR valve to include a fuel pressure check and ignition timing
Dec 14, 2010 at 10:10 AM
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RODNEYLS
  • MEMBER
  • 2 POSTS
egr,tps, knock sensor, tested/replaced, fuel pressure 13lbs, ignition timing checked; any other suggestions???
Dec 14, 2010 at 5:25 PM
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