93 gmc 5.7 tbi runs good sometimes but sometimes it will cut off and is hard to start

Asked by Dec 18, 2010 at 08:33 PM

Question type: Maintenance & Repair

1 Answer

675

Fuel pump is very common cause of this. Checking fuel pressure can be difficult on these. This throttle body MUST have AT LEAST 9 psi to operate properly.

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