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2003 GMC Envoy SLE XL 6cyl 4.2L with a P0440 code. Code
Code P0440 and yes I tried resetting it but it comes back … read more
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Eric
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Amedee
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PO 300 and PO101 codes. 2007 Envoy Denali with 5.3// Seafoam
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2003 yukon denali stalls in traffic. We have replaced the
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I have a 02 Yukon Denali, air is getting in the engine and
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GMC Suburban K2500 4x4: 1996 GMC Suburban K2500 7.4 engine.
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GM GMC: Can you tell me the location of the Vapor Canister
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Gary
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GMC Sierra 1500 HD Classic SLE: first problem was P0449 evap
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GMC Yukon 4x4: Fuel gage go emty but have gase in tank engin
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GMC Sierra 1500: I own a 2008 GMC Sierra 1500. Recently when
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2000 Jimmy Shows an error code of P1441, system flow during
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GMC Sierra 1500 Classic SLE: I have a code P0449 Evaporative
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GMC Chev Impala LT: My 2007 Chevy Impala LT has the Check Engine
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GMC Yukon SLE: Check engine light on. Auto Zone ran diagnostics.
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GMC Envoy SLT: It is easy to replace the Evaporative Emission
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99 jimmy heater vents change apon acceleration with sluggish acceleration (like always in
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GM sUBURBAN: I have a 1999 k1500 Suburban Showing code 171
I have a 1999 k1500 Suburban Showing code 171 and 197 bank 1 and 2 lean. I have repalced to o2 sensors and the mass air flow. Any suggestions?… read more
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Meet the Experts:

Gm Tech (Cam)

Gm Tech (Cam)

GMC Mechanic

1,839 satisfied customers

GM Grand Master Technician 2007. 14 year experience.

Gary

Gary

ASE Certified Technician

1,589 satisfied customers

GCM master tech over 25 years

Dave Nova

Dave Nova

GMC Technician

929 satisfied customers

ASE Master Certification. GM World Class Certification

Chris (aka-Moose)

Chris (aka-Moose)

GMC Technician

705 satisfied customers

16 years of experience

Ron Z.

Ron Z.

- GMC Tech -

291 satisfied customers

18+yrs experience. State Inspector & GMC Diagnostics/Repair

JFN1

JFN1

ASE Certified Technician

272 satisfied customers

GM Master Technician

Don - Mo Lurch

Don - Mo Lurch

ASE Certified Technician

234 satisfied customers

GM, GMC, Chevrolet Cert., Heavy Line Mech, Race Shop Owner, Mobile Electronics

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Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

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