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2000 Hummer H1 6.5L Slips Out of Overdrive
Posted to GM Transmission on 12/15/2005 5 Replies

car has chech engine lite on(unable to read any codes) after 4-5 miles falls out of overdrive, tach drops to idle off throttle but holds 3rd gEAR on throttle. weve tried three differnet scan tools and cannot access any codes!! any ideas would be appreciated.

5 Replies Received (View Replies)

 
Message Closed w/FIX

car Vehicle Data

2000 Hummer H1

VIN 137ZA8432Y
Engine6.5 L / 8 cyl / DIESEL
Trans4-speed Automatic (Electronic)
DeliveryFI
AffectedSlips Out of Overdrive
ConditionsOverdrive Falls Out
Message Closed w/FIX

car Vehicle Data

2000 Hummer H1

VIN 137ZA8432Y
Engine6.5 L / 8 cyl / DIESEL
Trans4-speed Automatic (Electronic)
DeliveryFI
AffectedSlips Out of Overdrive
ConditionsOverdrive Falls Out