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International Automotive Technicians Network
2003 Hummer H2 6.0L Hesitation
Posted to GM Driveability on 9/27/2007 12 Replies

Customer complained of hard start hot. After driving for 15 min or more and stopping for a short time, the truck cranks over for at least 1 minute before firing. Pressing throttle makes no difference. Truck displays 65psi pressure while cranking and holds pres...

12 Replies Received (View Replies)

  Related Documents & Media  2003 Hummer H2

 
Message Closed w/FIX

car Vehicle Data

2003 Hummer H2

VIN 5GRGN23U63
Engine6.0 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / sfi
EmissionsOBD-II Compliant
SymptomsHesitation
OccursAlways, Under Load, Cruise, After a Hot Soak

Trouble Codes

P0300Multiple Misfire Detected
Message Closed w/FIX

car Vehicle Data

2003 Hummer H2

VIN 5GRGN23U63
Engine6.0 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / sfi
EmissionsOBD-II Compliant
SymptomsHesitation
OccursAlways, Under Load, Cruise, After a Hot Soak

Trouble Codes

P0300Multiple Misfire Detected