1993 GMC C1500 hesitation

1993 GMC C1500
240,000 MILES • V8 • 2WD • AUTOMATIC
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XTREMEDIESEL
  • MEMBER
  • 2 POSTS
when i put my foot down it is very hesitant until i get to around 50k then power seems to be there but basically no low end power and it smells as though its burning fuel very rich
Jun 30, 2008 at 9:44 AM
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RASMATAZ
  • ✓ASE Certified Mechanic
  • 75,992 POSTS
  • ASE Certified Mechanic
Check the fuel pressure with and w/o the pressure regulator and also the throttle position sensor/MAF/MAP sensors-
Jun 30, 2008 at 10:17 AM
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