93 gmc 1500 won't start

Asked by Apr 28, 2017 at 04:54 PM about the 1993 GMC Sierra 1500 C1500 Extended Cab LB

Question type: Maintenance & Repair

My truck will crank but won't start. I have replaced the fuel pump and filter

2 Answers

73,065

Try spraying some starting fluid into the TBI to see if it fires off. If it does not start, then you may not have spark. Check for spark. Also make sure the fuel pump runs, primes up when the key is turned to the on position. May have lost power.

Try the ground on pump. Sometimes they don't get tightened all the way

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