97 JIMMY 4

  • Tiny
  • davidmccoy
  • 1997 GMC Jimmy

97 jimmy 4.3 runs when you pour gas into throttle body, fuel pumps is putting out 55 to 56 psi. Has spark at plugs. Replaced fuel filter. Checked all fuses. Could this be the fuel regulator?

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Monday, January 28th, 2013 AT 10:36 PM

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  • Tiny
  • hmac300
  • Expert
  • 43,725 posts

Fuel pressure if csi is 60-66 psi minimum if sfi it shold be 56-62 min. Which do you have? Vin will tell what sfi or csi

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Tuesday, January 29th, 2013 AT 2:55 PM
  • Tiny
  • hmac300
  • Expert
  • 43,725 posts

Scan for codes too

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Tuesday, January 29th, 2013 AT 2:55 PM

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