× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network
2004 GMC Yukon Denali 6.0L MIL Lamp on
Posted to GM Driveability on 1/9/2009 12 Replies

This truck has been in our shop many times for this problem. They lived on a dusty road so i did the service bulliten on it. It has freeze frame data that shows tank press. at 3.5 volts but when I check it it always is with in .2 volt of 1.5v. purge and vent w...

12 Replies Received (View Replies)

  Related Documents & Media  2004 GMC Yukon Denali

 
Message Closed w/FIX

car Vehicle Data

2004 GMC Yukon Denali

VIN 1GKFK66404
Engine6.0 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursIntermittently

Trouble Codes

P0446EVAP Vent Control System Performance
Message Closed w/FIX

car Vehicle Data

2004 GMC Yukon Denali

VIN 1GKFK66404
Engine6.0 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursIntermittently

Trouble Codes

P0446EVAP Vent Control System Performance