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

635

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.

1 out of 1 people think this is helpful.

Your Answer

Add photo

Related Questions

Search GMC Questions

GMC Experts

#1 dragonflyoffshore
dragonflyoffshore
Reputation 4,500
#2 John Saffrahn
John Saffrahn
Reputation 3,950
#3 Richard Schroer
Richard Schroer
Reputation 3,370
View All