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1999 GMC Yukon Denali 5.7L Evo/Passlock
Posted to GM Electrical on 2/28/2011 3 Replies

this vehicle came to us as a start & stall.I started my diag with map codes and found that the vcm would not respond to changes in map voltage when manually appling vac. to map [...] dvom at signal return wire at vcm voltage dropped as vac. increased indicatin...

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  Related Documents & Media  1999 GMC Yukon Denali

 
Message Closed w/FIX

car Vehicle Data

1999 GMC Yukon Denali

VIN 1GKEK13RXX
Engine5.7 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
AffectedEvo/Passlock
ConditionsSecurity Light
Message Closed w/FIX

car Vehicle Data

1999 GMC Yukon Denali

VIN 1GKEK13RXX
Engine5.7 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
AffectedEvo/Passlock
ConditionsSecurity Light