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International Automotive Technicians Network
2001 GMC 7500 7.2L Hesitation
Posted to GM Driveability on 12/29/2007 3 Replies

hey any heavy diesel techs out there got a7500 gmc with a 3126 cat diesel with afuel pressure guage installed drive vehicle fuel pressure drops from 70 psi to almost 0 no volume either and no power replaced mechinacal fuel pump no change removed fuel tank no r...

3 Replies Received (View Replies)

 
Message Closed w/FIX

car Vehicle Data

2001 GMC 7500

VIN 1GDM7C1C81
Engine7.2 L / 6 cyl
DeliveryFI
EmissionsOBD-II Compliant
SymptomsHesitation
OccursAlways
Message Closed w/FIX

car Vehicle Data

2001 GMC 7500

VIN 1GDM7C1C81
Engine7.2 L / 6 cyl
DeliveryFI
EmissionsOBD-II Compliant
SymptomsHesitation
OccursAlways