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GMC
Yukon
Trouble Codes
P Codes (Powertrain)
P0400 - P0499
P0440
2001 GMC Yukon diagnostic codes
SHERRY JOHNSON
MEMBER
2001 GMC YUKON
V8
AWD
AUTOMATIC
145,000 MILES
What does it mean when the repair code is P0440?
What should I fix?
Thanks, Sherry
Tuesday, February 12th, 2008 AT 2:15 PM
1 Reply
DENNYP
MECHANIC
1,824 POSTS
P0440 is an EVAP system fault. You first need to make sure your fuel cap is tight. If that ckecks ok, then you will need to take it to a shop that is equipped to test EVAP systems.
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Tuesday, February 26th, 2008 AT 8:52 PM
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