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International Automotive Technicians Network
2005 GMC Yukon XL 1500 Denali 6.0L No Downshift
Posted to GM Transmission on 8/14/2005 3 Replies

coasting down 2 twelve mph then apply throttle trans is in 3rd gear throttle harder bangs into 2nd but no power stomp on it drops int 1st. dealer states its [...] been in 2 accidents. gm says wait 4 a update 2 solve this [...] dealer techs come across this bef...

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car Vehicle Data

2005 GMC Yukon XL 1500 Denali

VIN 1GKFK66U55
Engine6.0 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
AffectedNo Downshift
Message Closed

car Vehicle Data

2005 GMC Yukon XL 1500 Denali

VIN 1GKFK66U55
Engine6.0 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
AffectedNo Downshift