2001 GMC Jimmy

2001 GMC JIMMY
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MARLBOROMAN62
  • MEMBER
  • 1 POST
Engine Mechanical problem
2001 GMC Jimmy 6 cyl Four Wheel Drive Automatic 270k miles

The engine cut off on the highway when doing 70 mph, I think it may be the fuel sensor or filter
Apr 29, 2010 at 6:18 PM
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INTERNETMECHANIC
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 700 POSTS
If you think it is a fuel system problem, use a gage and check fuel pressure. Some of the national brand autostores used to loan out a fuel pressure gage, if you don't have one? I'm not sure of the litre size of your engine? The fuel pressure spec for the 4.3L is 60--66 psi.
Apr 30, 2010 at 11:08 AM
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