what can cause the evap system to fail on board test
replaced solenoid valves and fuel tank pressure sensor

While it didn't change drastically in 2003, the Yukon XL did make some noteworthy improvements. GMC added Quadrasteer for improved steering and higher towing capacity. In addition, the Yukon XL got upgraded mirrors, multi-zone climate control, re-done control consoles, and optional DVD system and XM radio.
This full-size SUV has 4 doors and seats 8-9 depending on which of the 13 trims you choose. Think of the SLT as more luxurious than the SLE with standard features that include leather seats. The Yukon XL lets you choose from 5.3 L or 6.0 L V8 powertrains that give you 285, 295, 315, or 325 hp. Towing capacity generally ranges from 8000 to 9000 lbs., although the strongest trims can tow up to 12000 lbs.
Most drivers agree that the XL excels in powertrain selection and interior room. In addition, they appreciate the improvements for the new model year. While critics say the '03 Yukon XL could use better materials, most reviewers like what this domestic SUV offers in modern features and power.
replaced solenoid valves and fuel tank pressure sensor
Left key in truck overnight in the on position. Charged the battery. No lights on the dashboard and the engine made no sound. My s put his battery (same kind) in my truck. It started right up. His truck did not start when we put my battery in his truck. I purchased a new battery. My truck started on the first try. I went back a couple of hours later and it would not start. Lights on the dash came on until I tried to start the engine. It did not start and all dashboard lights went out. My truck was running well until this happened. Do you have any suggestions on what to check next?
I am trying to replace my Transmission Control Module Replacement on my gmc 2003 yukon. Where is it located?? And also will this help with my truck not going into gear. It does when i start it but after that it doesnt
Was at work truck start fine got home truck would not start turn the key an lights come on an radio but wont turn over or make noise
88,0000 now and runs like new.
Airbags
Dual front airbags · Front side airbags
Audio System
Single disc in-Dash CD · AM/FM radio
Brakes
ABS: 4-wheel
Convenience Features
Steering wheel: tilt-adjustable
Drivetrain
Axle ratio: 3.73 · Locking differential: rear
Exterior Features
Front bumper color: chrome · Rear bumper color: chrome
Lights
Headlights: Auto on/off
Rear Seats
Type: bench
Roof
Roof rack color: black
Seats
Front seat type: split-bench · Upholstery: vinyl
Suspension
Front Spring Type: torsion bars · Front Suspension Classification: independent · Front Suspension Type: double wishbones · Rear Spring Type: coil springs · Rear Suspension Classification: solid live axle · Rear Suspension Type: multi-link
Tires and Rims
Wheel type: aluminum alloy
Windows
Front wipers: intermittent
Airbags
Dual front airbags · Front side airbags
Audio System
Single disc in-Dash CD · AM/FM radio
Brakes
ABS: 4-wheel
Convenience Features
Steering wheel: tilt-adjustable
Drivetrain
Axle ratio: 3.73 · Locking differential: rear
Exterior Features
Front bumper color: chrome · Rear bumper color: chrome
Lights
Headlights: Auto on/off
Rear Seats
Type: bench
Roof
Roof rack color: black
Seats
Front seat type: split-bench · Upholstery: vinyl
Suspension
Front Spring Type: torsion bars · Front Suspension Classification: independent · Front Suspension Type: double wishbones · Rear Spring Type: leaf springs · Rear Suspension Classification: solid live axle · Rear Suspension Type: multi-leaf
Tires and Rims
Wheel type: aluminum alloy
Windows
Front wipers: intermittent
Airbags
Dual front airbags · Front side airbags
Audio System
Single disc in-Dash CD · AM/FM radio
Brakes
ABS: 4-wheel
Convenience Features
Steering wheel: tilt-adjustable
Drivetrain
4WD Type: part time · Axle ratio: 3.73 · Locking differential: rear
Exterior Features
Front bumper color: chrome · Rear bumper color: chrome · Skid plate(s): front and rear
Lights
Headlights: Auto on/off
Rear Seats
Type: bench
Roof
Roof rack color: black
Seats
Front seat type: split-bench · Upholstery: vinyl
Suspension
Front Spring Type: torsion bars · Front Suspension Classification: independent · Front Suspension Type: double wishbones · Rear Spring Type: coil springs · Rear Suspension Classification: solid live axle · Rear Suspension Type: multi-link
Tires and Rims
Wheel type: aluminum alloy
Windows
Front wipers: intermittent
Air Conditioning
Automatic climate control front air conditioning · Dual front air conditioning zones · Automatic climate control rear air conditioning · Single rear air conditioning zones
Airbags
Dual front airbags · Front side airbags
Audio System
Single disc in-Dash CD · AM/FM radio · Rear audio: rear volume control
Brakes
ABS: 4-wheel
Comfort Features
Steering wheel trim: leather
Convenience Features
Adjustable pedals: power · Dimming rearview mirror: auto-dimming · Multi-function remote: keyless entry · Steering wheel: tilt-adjustable · Steering wheel mounted controls: audio
Drivetrain
Axle ratio: 3.73 · Locking differential: rear
Lights
Exterior entry lights: security approach lamps · Headlights: Auto on/off
Mirrors
Exterior mirrors: heated
Rear Seats
Type: 60-40 split bench
Roof
Moonroof: power · Roof rack color: black
Seats
Front seat type: 40-20-40 split bench · Upholstery: cloth
Suspension
Front Spring Type: torsion bars · Front Suspension Classification: independent · Front Suspension Type: double wishbones · Rear Spring Type: coil springs · Rear Suspension Classification: solid live axle · Rear Suspension Type: multi-link
Third Row Seat
Type: bench
Tires and Rims
Wheel type: aluminum alloy
Windows
Front wipers: intermittent
Airbags
Dual front airbags · Front side airbags
Audio System
Single disc in-Dash CD · AM/FM radio
Brakes
ABS: 4-wheel
Convenience Features
Steering wheel: tilt-adjustable
Drivetrain
4WD Type: part time · Axle ratio: 3.73 · Locking differential: rear
Exterior Features
Front bumper color: chrome · Rear bumper color: chrome · Skid plate(s): front and rear
Lights
Headlights: Auto on/off
Rear Seats
Type: bench
Roof
Roof rack color: black
Seats
Front seat type: split-bench · Upholstery: vinyl
Suspension
Front Spring Type: torsion bars · Front Suspension Classification: independent · Front Suspension Type: double wishbones · Rear Spring Type: leaf springs · Rear Suspension Classification: solid live axle · Rear Suspension Type: multi-leaf
Tires and Rims
Wheel type: aluminum alloy
Windows
Front wipers: intermittent
Air Conditioning
Automatic climate control front air conditioning · Dual front air conditioning zones · Automatic climate control rear air conditioning · Single rear air conditioning zones
Airbags
Dual front airbags · Front side airbags
Audio System
Single disc in-Dash CD · AM/FM radio · Rear audio: rear volume control
Brakes
ABS: 4-wheel
Comfort Features
Steering wheel trim: leather
Convenience Features
Adjustable pedals: power · Dimming rearview mirror: auto-dimming · Multi-function remote: keyless entry · Steering wheel: tilt-adjustable · Steering wheel mounted controls: audio
Drivetrain
Axle ratio: 3.73 · Locking differential: rear
Lights
Exterior entry lights: security approach lamps · Headlights: Auto on/off
Mirrors
Exterior mirrors: heated
Rear Seats
Type: 60-40 split bench
Roof
Moonroof: power · Roof rack color: black
Seats
Front seat type: bucket · Upholstery: cloth
Suspension
Front Spring Type: torsion bars · Front Suspension Classification: independent · Front Suspension Type: double wishbones · Rear Spring Type: leaf springs · Rear Suspension Classification: solid live axle · Rear Suspension Type: multi-leaf
Third Row Seat
Type: bench
Windows
Front wipers: intermittent
Air Conditioning
Automatic climate control front air conditioning · Dual front air conditioning zones · Automatic climate control rear air conditioning · Single rear air conditioning zones
Airbags
Dual front airbags · Front side airbags
Audio System
Single disc in-Dash CD · AM/FM radio · Rear audio: rear volume control
Brakes
ABS: 4-wheel
Comfort Features
Steering wheel trim: leather
Convenience Features
Adjustable pedals: power · Dimming rearview mirror: auto-dimming · Multi-function remote: keyless entry · Steering wheel: tilt-adjustable · Steering wheel mounted controls: audio
Drivetrain
4WD Type: part time · Axle ratio: 3.73 · Locking differential: rear
Exterior Features
Skid plate(s): front and rear
Lights
Exterior entry lights: security approach lamps · Headlights: Auto on/off
Mirrors
Exterior mirrors: heated
Rear Seats
Type: 60-40 split bench
Roof
Moonroof: power · Roof rack color: black
Seats
Front seat type: bucket · Upholstery: cloth
Suspension
Front Spring Type: torsion bars · Front Suspension Classification: independent · Front Suspension Type: double wishbones · Rear Spring Type: coil springs · Rear Suspension Classification: solid live axle · Rear Suspension Type: multi-link
Third Row Seat
Type: bench
Tires and Rims
Wheel type: aluminum alloy
Windows
Front wipers: intermittent
Air Conditioning
Automatic climate control front air conditioning · Dual front air conditioning zones · Automatic climate control rear air conditioning · Single rear air conditioning zones
Airbags
Dual front airbags · Front side airbags
Audio System
Single disc in-Dash CD · Premium Brand: Bose · AM/FM radio · Rear audio: rear volume control
Brakes
ABS: 4-wheel
Comfort Features
Steering wheel trim: leather
Convenience Features
Adjustable pedals: power · Dimming rearview mirror: auto-dimming · Memorized settings: driver seat · Multi-function remote: keyless entry · Steering wheel: tilt-adjustable · Steering wheel mounted controls: audio
Drivetrain
Axle ratio: 3.73 · Locking differential: rear
In Car Entertainment
Video system: DVD player
Lights
Exterior entry lights: security approach lamps · Headlights: Auto on/off
Mirrors
Exterior mirrors: heated
Rear Seats
Type: 60-40 split bench
Roof
Moonroof: power · Roof rack color: black
Seats
Front seat type: bucket · Upholstery: leather
Suspension
Front Spring Type: torsion bars · Front Suspension Classification: independent · Front Suspension Type: double wishbones · Rear Spring Type: coil springs · Rear Suspension Classification: solid live axle · Rear Suspension Type: multi-link
Third Row Seat
Type: bench
Tires and Rims
Wheel type: aluminum alloy
Windows
Front wipers: intermittent
Air Conditioning
Automatic climate control front air conditioning · Dual front air conditioning zones · Automatic climate control rear air conditioning · Single rear air conditioning zones
Airbags
Dual front airbags · Front side airbags
Audio System
Single disc in-Dash CD · AM/FM radio · Rear audio: rear volume control
Brakes
ABS: 4-wheel
Comfort Features
Steering wheel trim: leather
Convenience Features
Adjustable pedals: power · Dimming rearview mirror: auto-dimming · Multi-function remote: keyless entry · Steering wheel: tilt-adjustable · Steering wheel mounted controls: audio
Drivetrain
4WD Type: part time · Axle ratio: 3.73 · Locking differential: rear
Exterior Features
Skid plate(s): front and rear
Lights
Exterior entry lights: security approach lamps · Headlights: Auto on/off
Mirrors
Exterior mirrors: heated
Rear Seats
Type: 60-40 split bench
Roof
Moonroof: power · Roof rack color: black
Seats
Front seat type: bucket · Upholstery: cloth
Suspension
Front Spring Type: torsion bars · Front Suspension Classification: independent · Front Suspension Type: double wishbones · Rear Spring Type: leaf springs · Rear Suspension Classification: solid live axle · Rear Suspension Type: multi-leaf
Third Row Seat
Type: bench
Windows
Front wipers: intermittent
Air Conditioning
Automatic climate control front air conditioning · Dual front air conditioning zones · Automatic climate control rear air conditioning · Single rear air conditioning zones
Airbags
Dual front airbags · Front side airbags
Audio System
Single disc in-Dash CD · Premium Brand: Bose · AM/FM radio · Rear audio: rear volume control
Brakes
ABS: 4-wheel
Comfort Features
Steering wheel trim: leather
Convenience Features
Adjustable pedals: power · Dimming rearview mirror: auto-dimming · Memorized settings: driver seat · Multi-function remote: keyless entry · Steering wheel: tilt-adjustable · Steering wheel mounted controls: audio
Drivetrain
Axle ratio: 3.73 · Locking differential: rear
In Car Entertainment
Video system: DVD player
Lights
Exterior entry lights: security approach lamps · Headlights: Auto on/off
Mirrors
Exterior mirrors: auto-dimming
Rear Seats
Type: 60-40 split bench
Roof
Moonroof: power · Roof rack color: black
Seats
Front seat type: bucket · Upholstery: leather
Suspension
Front Spring Type: torsion bars · Front Suspension Classification: independent · Front Suspension Type: double wishbones · Rear Spring Type: leaf springs · Rear Suspension Classification: solid live axle · Rear Suspension Type: multi-leaf
Third Row Seat
Type: bench
Windows
Front wipers: intermittent
Air Conditioning
Automatic climate control front air conditioning · Dual front air conditioning zones · Automatic climate control rear air conditioning · Single rear air conditioning zones
Airbags
Dual front airbags · Front side airbags
Audio System
Single disc in-Dash CD · Premium Brand: Bose · AM/FM radio · Rear audio: rear volume control
Brakes
ABS: 4-wheel
Comfort Features
Steering wheel trim: leather
Convenience Features
Adjustable pedals: power · Dimming rearview mirror: auto-dimming · Memorized settings: driver seat · Multi-function remote: keyless entry · Steering wheel: tilt-adjustable · Steering wheel mounted controls: audio
Drivetrain
4WD Type: part time · Axle ratio: 3.73 · Locking differential: center
Exterior Features
Skid plate(s): front and rear
In Car Entertainment
Video system: DVD player
Lights
Exterior entry lights: security approach lamps · Headlights: Auto on/off
Mirrors
Exterior mirrors: heated
Rear Seats
Type: 60-40 split bench
Roof
Moonroof: power · Roof rack color: black
Seats
Front seat type: bucket · Upholstery: leather
Suspension
Front Spring Type: torsion bars · Front Suspension Classification: independent · Front Suspension Type: double wishbones · Rear Spring Type: coil springs · Rear Suspension Classification: solid live axle · Rear Suspension Type: multi-link
Third Row Seat
Type: bench
Tires and Rims
Wheel type: aluminum alloy
Windows
Front wipers: intermittent
Air Conditioning
Automatic climate control front air conditioning · Dual front air conditioning zones · Automatic climate control rear air conditioning · Single rear air conditioning zones
Airbags
Dual front airbags · Front side airbags
Audio System
Single disc in-Dash CD · Premium Brand: Bose · AM/FM radio · Rear audio: rear volume control
Brakes
ABS: 4-wheel
Comfort Features
Steering wheel trim: leather
Convenience Features
Adjustable pedals: power · Dimming rearview mirror: auto-dimming · Memorized settings: driver seat · Multi-function remote: keyless entry · Steering wheel: tilt-adjustable · Steering wheel mounted controls: audio
Drivetrain
4WD Type: part time · Axle ratio: 3.73 · Locking differential: center
Exterior Features
Skid plate(s): front and rear
In Car Entertainment
Video system: DVD player
Lights
Exterior entry lights: security approach lamps · Headlights: Auto on/off
Mirrors
Exterior mirrors: integrated turn signals
Rear Seats
Type: 60-40 split bench
Roof
Moonroof: power · Roof rack color: black
Seats
Front seat type: bucket · Upholstery: leather
Suspension
Front Spring Type: torsion bars · Front Suspension Classification: independent · Front Suspension Type: double wishbones · Rear Spring Type: leaf springs · Rear Suspension Classification: solid live axle · Rear Suspension Type: multi-leaf
Third Row Seat
Type: bench
Windows
Front wipers: intermittent
Air Conditioning
Automatic climate control front air conditioning · Dual front air conditioning zones · Automatic climate control rear air conditioning · Single rear air conditioning zones
Airbags
Dual front airbags · Front side airbags
Audio System
6 disc in-dash CD · MP3 player: CD MP3 Playback · Premium Brand: Bose · AM/FM radio · Rear audio: rear volume control · Satellite Radio: SiriusXM
Brakes
ABS: 4-wheel
Comfort Features
Steering wheel trim: leather
Convenience Features
Adjustable pedals: power · Dimming rearview mirror: auto-dimming · Memorized settings: driver seat · Multi-function remote: keyless entry · Steering wheel: tilt-adjustable · Steering wheel mounted controls: audio
Drivetrain
4WD Type: full time · Axle ratio: 3.73 · Locking differential: rear
In Car Entertainment
Video system: DVD player
Lights
Exterior entry lights: security approach lamps · Headlights: Auto on/off
Mirrors
Exterior mirrors: power folding
Rear Seats
Type: 60-40 split bench
Roof
Moonroof: power · Roof rack color: black
Seats
Front seat type: bucket · Upholstery: leather
Suspension
Air Suspension: rear · Front Spring Type: torsion bars · Front Suspension Classification: independent · Front Suspension Type: double wishbones · Leveling: self leveling suspension · Rear Spring Type: coil springs · Rear Suspension Classification: solid live axle · Rear Suspension Type: multi-link
Telematics
Satellite communications: OnStar
Third Row Seat
Type: bench
Windows
Front wipers: intermittent