1998 Chevy Cheyenne rough hesitation

1998 CHEVROLET CHEYENNE
182,253 MILES • V8 • 2WD • AUTOMATIC
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#1BIGAL
  • MEMBER
  • 1 POST
i replaced fuel filter,fuel pump,tps truck starts and idles fine after truck gets up to running temp it hesitates and runs rough tach drops when this happens
Oct 16, 2009 at 3:08 AM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,240 POSTS
Has the check engine light come on? Have you checked fuel pump pressure? Vacuum Leaks? EGR?
Nov 3, 2009 at 2:17 AM
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