Highbeam kills my engine
I have a 2005 GMC envoy that recently started dying on me when I flash my high beams. I also noticed that driver side is dimmer that the passenger side. All fuses and relays are good, could this be a short or ground issue?

The biggest update you'll notice in the 2005 GMC Envoy comes in the form of the 2WD and 4WD Denali trims, which bumps the total trim number to 6. The new Denali sports a 5.3 L, 300 hp V8 powertrain with 4 speed automatic transmission, a noticeable power boost from the 4.2 L, 275 hp I6 found in the 2WD and 4WD SLE and SLT trims. In addition to a more powerful engine, the Denali has some fancy exterior accents that include a chrome grille, redesigned fascia, and 17 inch wheels.
As for other specs, the 2005 GMC Envoy generally gets 15 mpg in the city and 20 on the highway. This midsize SUV has 4 doors, seats 5, and offers a solid list of interior features that include standard ABS brakes, power windows, and power door locks. Towing capacity on this midsize SUV can range from 5100 to 6700 lbs.
Overall, drivers have same mixed feelings about the Envoy that they've always had. While many of them like the solid list of features and capable engine choices, they'd appreciate better steering and handling. The 2005 GMC Envoy represents a solid domestic SUV that looks to improve over the next few years as the model evolves. However, you can do better if you do your homework.
I have a 2005 GMC envoy that recently started dying on me when I flash my high beams. I also noticed that driver side is dimmer that the passenger side. All fuses and relays are good, could this be a short or ground issue?
There us no power what so ever to the vehicle. We drove it, park it and went out the next morning and nothing at all. We have changed the BCM, negative cable, neutral safety switch, ignition module, starter, and the starter sylonoid fuse. The batter and alternator are good. There is no security system for this vehicle. Still nothing, any ideas
I have an Envoy 2005, 5.3L - My climate control system is blowing air through the defrost vents & floor, but won't transition to the standard cabin vents. I get heat but no cool air / a/c. I can turn the air flow up/down, but can't get the flow through the standard vents. Any idea what part in the system is the cause? Any help would be appreciated! Thoughts? Thanks in advance!
How many catalytic converters does my 2005 envoy supposed to have?
I can't find the fuel filter. It isn't under the driver's floor in front of the gas tank at inside of the chasis. It is inside the gas tank?
Air Conditioning
Automatic climate control front air conditioning · Dual front air conditioning zones
Airbags
Dual front airbags · Front and rear head airbags
Audio System
Single disc in-Dash CD · MP3 player: CD MP3 Playback · AM/FM radio · Rear audio: rear volume control
Brakes
ABS: 4-wheel
Comfort Features
Steering wheel trim: leather
Convenience Features
Adjustable pedals: power · Center console: front console with storage · Multi-function remote: keyless entry · Steering wheel: tilt-adjustable
Drivetrain
Axle ratio: 3.42 · Locking differential: rear
In Car Entertainment
Video system: DVD player
Lights
Headlights: Auto on/off
Mirrors
Exterior mirrors: power
Roof
Moonroof: power · Roof rack color: black
Seats
Front seat type: bucket · Rear seat folding: split · Upholstery: cloth
Telematics
Satellite communications: OnStar
Tires and Rims
Wheel type: aluminum alloy · Wheels: alloy
Windows
Front wipers: intermittent · Rear wiper: intermittent
Air Conditioning
Automatic climate control front air conditioning · Dual front air conditioning zones
Airbags
Dual front airbags · Front and rear head airbags
Audio System
Single disc in-Dash CD · MP3 player: CD MP3 Playback · AM/FM radio · Rear audio: rear volume control
Brakes
ABS: 4-wheel
Comfort Features
Steering wheel trim: leather
Convenience Features
Adjustable pedals: power · Center console: front console with storage · Multi-function remote: keyless entry · Steering wheel: tilt-adjustable
Drivetrain
4WD Type: part time w/ on demand setting · Axle ratio: 3.42 · Locking differential: rear · Transfer Case: electronic hi-lo gear selection
Exterior Features
Skid plate(s): front and rear
In Car Entertainment
Video system: DVD player
Lights
Headlights: Auto on/off
Mirrors
Exterior mirrors: heated
Roof
Moonroof: power · Roof rack color: black
Seats
Front seat type: bucket · Rear seat folding: split · Upholstery: cloth
Telematics
Satellite communications: OnStar
Tires and Rims
Wheel type: aluminum alloy · Wheels: alloy
Windows
Front wipers: intermittent · Rear wiper: intermittent
Air Conditioning
Automatic climate control front air conditioning · Dual front air conditioning zones
Airbags
Dual front airbags · Front and rear head airbags
Audio System
Single disc in-Dash CD · MP3 player: CD MP3 Playback · AM/FM radio · Rear audio: rear volume control
Brakes
ABS: 4-wheel
Comfort Features
Steering wheel trim: leather
Convenience Features
Adjustable pedals: power · Center console: front console with storage · Memorized settings: driver seat · Multi-function remote: keyless entry · Steering wheel: tilt-adjustable · Steering wheel mounted controls: audio
Drivetrain
Axle ratio: 3.42 · Locking differential: rear
In Car Entertainment
Video system: DVD player
Lights
Headlights: Auto on/off
Mirrors
Exterior mirrors: integrated turn signals
Roof
Moonroof: power · Roof rack color: black
Seats
Front seat type: bucket · Heated: front seats · Rear seat folding: split · Upholstery: leather
Telematics
Satellite communications: OnStar
Tires and Rims
Wheel type: aluminum alloy · Wheels: alloy
Windows
Front wipers: rain sensing · Rear wiper: intermittent
Air Conditioning
Automatic climate control front air conditioning · Dual front air conditioning zones
Airbags
Dual front airbags · Front and rear head airbags
Audio System
Single disc in-Dash CD · MP3 player: CD MP3 Playback · AM/FM radio · Rear audio: rear volume control
Brakes
ABS: 4-wheel
Comfort Features
Steering wheel trim: leather
Convenience Features
Adjustable pedals: power · Center console: front console with storage · Memorized settings: driver seat · Multi-function remote: keyless entry · Steering wheel: tilt-adjustable · Steering wheel mounted controls: audio
Drivetrain
4WD Type: part time w/ on demand setting · Axle ratio: 3.42 · Locking differential: rear · Transfer Case: electronic hi-lo gear selection
Exterior Features
Skid plate(s): front and rear
In Car Entertainment
Video system: DVD player
Lights
Headlights: Auto on/off
Mirrors
Exterior mirrors: heated
Roof
Moonroof: power · Roof rack color: black
Seats
Front seat type: bucket · Heated: front seats · Rear seat folding: split · Upholstery: leather
Telematics
Satellite communications: OnStar
Tires and Rims
Wheel type: aluminum alloy · Wheels: alloy
Windows
Front wipers: intermittent · Rear wiper: intermittent
Air Conditioning
Automatic climate control front air conditioning · Dual front air conditioning zones
Airbags
Dual front airbags · Front and rear head airbags
Audio System
Single disc in-Dash CD · MP3 player: CD MP3 Playback · AM/FM radio · Rear audio: rear volume control
Brakes
ABS: 4-wheel
Comfort Features
Steering wheel trim: leather
Convenience Features
Adjustable pedals: power · Center console: front console with storage · Memorized settings: driver seat · Multi-function remote: keyless entry · Steering wheel: tilt-adjustable · Steering wheel mounted controls: audio
Drivetrain
Axle ratio: 3.42 · Locking differential: rear
In Car Entertainment
Video system: DVD player
Lights
Headlights: Auto on/off
Mirrors
Exterior mirrors: power
Roof
Moonroof: power · Roof rack color: black
Seats
Front seat type: bucket · Rear seat folding: split · Upholstery: leather
Telematics
Satellite communications: OnStar
Tires and Rims
Wheel type: aluminum alloy
Windows
Front wipers: intermittent · Rear wiper: intermittent
Air Conditioning
Automatic climate control front air conditioning · Dual front air conditioning zones
Airbags
Dual front airbags · Front and rear head airbags
Audio System
Single disc in-Dash CD · MP3 player: CD MP3 Playback · AM/FM radio · Rear audio: rear volume control
Brakes
ABS: 4-wheel
Comfort Features
Steering wheel trim: wood
Convenience Features
Adjustable pedals: power · Center console: front console with storage · Memorized settings: driver seat · Multi-function remote: keyless entry · Steering wheel: tilt-adjustable · Steering wheel mounted controls: audio
Drivetrain
4WD Type: part time w/ on demand setting · Axle ratio: 3.42 · Locking differential: rear · Transfer Case: electronic hi-lo gear selection
In Car Entertainment
Video system: DVD player
Lights
Headlights: Auto on/off
Mirrors
Exterior mirrors: heated
Roof
Moonroof: power · Roof rack color: black
Seats
Front seat type: bucket · Rear seat folding: split · Upholstery: leather
Telematics
Satellite communications: OnStar
Tires and Rims
Wheel type: aluminum alloy
Windows
Front wipers: rain sensing · Rear wiper: intermittent