hey i have a 91 gmc with a 4.3.. we have changed map,tps,iac,fuel pump, timing chain,rebuilt the tbi, egr, still wont idle or rev up.. any thoughts?

Asked by Nov 21, 2013 at 03:12 PM about the 1991 GMC Sierra 1500 C1500 SLE Standard Cab LB

Question type: Maintenance & Repair

1 Answer

fixed it.. it was the fuel line between the pump and sending unit

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