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  • Price Drop
    • 14,963 miles
    • No accidents, 1 owner, personal use only
    • 8 Seats, 15 City / 18 Hwy MPG
    • Lenz Truck - Minocqua WI (124 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Minocqua, WI / 124 miles away from Appleton, WI

    Vehicle 3.0L I6 DIESEL, 4 WHEEL DRIVE, 8 PASSENGER SEATING, PANORAMIC MOON ROOF, DUAL POWER HEATED AND COOLED FRONT BUCKET LEATHER SEATS, SECOND ROW ...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    16 Combined MPG (15 City/18 Highway)

    Listing Information:

    VIN: 1GKS2GKT9RR140578
    Stock: MB6314
    Certified Pre-Owned: No
    Listed since: 04-11-2025

  • New Listing
    • 9,264 miles
    • No accidents, 1 owner, personal use only
    • 7 Seats, 14 City / 18 Hwy MPG
    • Tri Rivers Chevrolet (219 mi away)
    • AWD/4WD
    • Bluetooth
    • Leather Seats
    • Sunroof/Moonroof
    • Keyless Entry/Start
    Close

    Located in Hastings, MN / 219 miles away from Appleton, WI

    Free Delivery Available To Your Door!4WD.Priced below KBB Fair Purchase Price!Odometer is 28502 miles below market average!We look forward to working ...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: Yes

    Features and Specs:

    16 Combined MPG (14 City/18 Highway)

    Listing Information:

    VIN: 1GKS2KKL2PR487749
    Stock: 1031X
    Certified Pre-Owned: No
    Listed since: 05-15-2025

  • Stock photo**
    $64,995
    fair price
    $2,008 above market
    • 31,800 miles
    • No accidents, 1 owner, personal use
    • 7 Seats, 14 City / 19 Hwy MPG
    • Autoporter Leasing (249 mi away)
    • AWD/4WD
    • Bluetooth
    • Leather Seats
    • Sunroof/Moonroof
    • Keyless Entry/Start
    Close

    Located in Hopkins, MN / 249 miles away from Appleton, WI

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    16 Combined MPG (14 City/19 Highway)

    Listing Information:

    VIN: 1GKS2JKL2NR156211
    Stock: 8473
    Certified Pre-Owned: No
    Listed since: 06-12-2025

  • Price Drop
    • 64 miles
    • No accidents, personal use only
    • 7 Seats, 14 City / 18 Hwy MPG
    • Kayser Chevrolet Buick (95 mi away)
    • AWD/4WD
    • Bluetooth
    • Leather Seats
    • Sunroof/Moonroof
    • Keyless Entry/Start
    Close

    Located in Sauk City, WI / 95 miles away from Appleton, WI

    Recent Arrival! *GM Certified Warranty Included**, Tow Package, 3 rd Row 7 Passenger Seating, Nav | Navi | GPS | Navigation, 4WD | 4 Wheel Drive, Heat...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    16 Combined MPG (14 City/18 Highway)

    Listing Information:

    VIN: 1GKS2WRL3SR219704
    Stock: SP3567A
    Certified Pre-Owned: No
    Listed since: 06-25-2025

    • 15,802 miles
    • No accidents, 1 owner, personal use only
    • 8 Seats, 15 City / 19 Hwy MPG
    • Lenz Truck - Minocqua WI (124 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Keyless Entry/Start
    Close

    Located in Minocqua, WI / 124 miles away from Appleton, WI

    Vehicle 3.0L I6 DIESEL, 4 WHEEL DRIVE, PANORAMIC MOON ROOF, DUAL POWER HEATED AND COOLED FRONT BUCKET LEATHER SEATS, SECOND ROW BUCKET SEATS/QUAD SEA...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    16 Combined MPG (15 City/19 Highway)

    Listing Information:

    VIN: 1GKS2GKT3PR376530
    Stock: S34651
    Certified Pre-Owned: No
    Listed since: 03-16-2025

  • Price Drop
    • 7,681 miles
    • No accidents, 1 owner, personal use only
    • 7 Seats, 14 City / 18 Hwy MPG
    • Walser Buick GMC Roseville (239 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Keyless Entry/Start
    Close

    Located in Roseville, MN / 239 miles away from Appleton, WI

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    16 Combined MPG (14 City/18 Highway)

    Listing Information:

    VIN: 1GKS2JKL3RR112501
    Stock: 5G1185P
    Certified Pre-Owned: No
    Listed since: 06-07-2025

  • New Listing
    Stock photo**
    $25,499
    fair price
    $483 above market
    • 132,623 miles
    • No accidents, personal use only
    • 7 Seats, 14 City / 21 Hwy MPG
    • Deans Auto Sales (250 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Flint, MI / 250 miles away from Appleton, WI

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    16 Combined MPG (14 City/21 Highway)

    Listing Information:

    VIN: 1GKS2HKJ9JR340577
    Stock: P340577
    Certified Pre-Owned: No
    Listed since: 07-12-2025

    • 16,848 miles
    • No accidents, 1 owner, personal use only
    • 7 Seats, 14 City / 18 Hwy MPG
    • Jim Lupient Buick GMC (247 mi away)
    • AWD/4WD
    • Bluetooth
    • Leather Seats
    • Keyless Entry/Start
    • Third-row seating
    Close

    Located in Golden Valley, MN / 247 miles away from Appleton, WI

    Odometer is 5689 miles below market average!

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    16 Combined MPG (14 City/18 Highway)

    Listing Information:

    VIN: 1GKS2JKL6PR497517
    Stock: W1186
    Certified Pre-Owned: No
    Listed since: 05-30-2025

  • $22,540
    fair price
    $448 above market
    • 139,453 miles
    • 1 accident, 3 owners, personal use
    • 7 Seats, 14 City / 20 Hwy MPG
    • Runde Chevrolet Buick GMC (147 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Platteville, WI / 147 miles away from Appleton, WI

    Vehicle DetailsDiscover the power and luxury of the 2016 GMC Yukon XL 1500 Denali, a full-sized SUV that blends refined style with robust performance....

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: No

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    16 Combined MPG (14 City/20 Highway)

    Listing Information:

    VIN: 1GKS2HKJ3GR286279
    Stock: GR286279
    Certified Pre-Owned: No
    Listed since: 06-01-2025

    • 369 miles
    • No accidents, personal use only
    • 7 Seats, 14 City / 18 Hwy MPG
    • DM Motors (277 mi away)
    • AWD/4WD
    • Bluetooth
    • Leather Seats
    • Sunroof/Moonroof
    • Keyless Entry/Start
    Close

    Located in Walled Lake, MI / 277 miles away from Appleton, WI

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    16 Combined MPG (14 City/18 Highway)

    Listing Information:

    VIN: 1GKS2KRL2SR299778
    Stock: L-680
    Certified Pre-Owned: No
    Listed since: 05-09-2025

  • Price Drop
    $47,288
    fair price
    $1,497 above market
    • 98,473 miles
    • No accidents, 1 owner, personal use only
    • 7 Seats, 14 City / 19 Hwy MPG
    • Joseph Buick GMC (401 mi away)
    • AWD/4WD
    • Bluetooth
    • Leather Seats
    • Sunroof/Moonroof
    • Keyless Entry/Start
    Close

    Located in Cincinnati, OH / 401 miles away from Appleton, WI

    CARFAX One-Owner. 2022 EcoTec3 6.2L V8 GMC 14/19 City/Highway MPG Yukon XL Denali 4WD Sunroof, Navigation, Remote Start, Leather, Ventilated Seats, He...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    16 Combined MPG (14 City/19 Highway)

    Listing Information:

    VIN: 1GKS2JKL8NR153958
    Stock: G25430A
    Certified Pre-Owned: No
    Listed since: 05-30-2025

    • 10,596 miles
    • No accidents, 1 owner, personal use only
    • 7 Seats, 14 City / 18 Hwy MPG
    • Shea Mega Lot (249 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Keyless Entry/Start
    Close

    Located in Flint, MI / 249 miles away from Appleton, WI

    Welcome to Shea Automotive! We have 800+ used cars in ONE LOCATION! Stop in at 2100 S Linden Rd. Flint, MI 48532 or call 8**-7**-7*** to schedule a te...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    16 Combined MPG (14 City/18 Highway)

    Listing Information:

    VIN: 1GKS2JKL9RR149584
    Stock: P33987
    Certified Pre-Owned: No
    Listed since: 01-31-2025

  • Price Drop
    • 87 miles
    • No accidents, 1 owner, personal use only
    • 7 Seats, 14 City / 18 Hwy MPG
    • Paynesville Chevrolet Buick (316 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Paynesville, MN / 316 miles away from Appleton, WI

    Paynesville Chevrolet is excited to offer this 2024 GMC Yukon XL! This vehicle features:EcoTec3 6.2L V8 10-Speed Automatic with Overdrive 4WD22-in Rim...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    16 Combined MPG (14 City/18 Highway)

    Listing Information:

    VIN: 1GKS2JKL1RR315502
    Stock: 21033
    Certified Pre-Owned: No
    Listed since: 03-05-2025

    • 1,304 miles
    • No accidents, 1 owner, personal use only
    • 7 Seats, 14 City / 18 Hwy MPG
    • Alderman Luxury Imports (321 mi away)
    • AWD/4WD
    • Bluetooth
    • Leather Seats
    • Keyless Entry/Start
    • Third-row seating
    Close

    Located in Fishers, IN / 321 miles away from Appleton, WI

    CARFAX One-Owner. All Recommended Maintenance Completed, Yukon XL Denali, EcoTec3 6.2L V8, 4WD, Sterling Metallic.*Restrictions apply, Vehicle Deliver...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    16 Combined MPG (14 City/18 Highway)

    Listing Information:

    VIN: 1GKS2JRL3SR163640
    Stock: CW2001
    Certified Pre-Owned: No
    Listed since: 04-15-2025

    • 201,827 miles
    • No accidents, 1 owner, rental vehicle
    • 8 Seats, 15 City / 22 Hwy MPG
    • Friendly Chevrolet (243 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Keyless Entry/Start
    Close

    Located in Fridley, MN / 243 miles away from Appleton, WI

    2018 GMC Yukon XL SLT Summit White 4D Sport Utility 4WD 6-Speed Automatic Electronic with Overdrive EcoTec3 5.3L V8Bargain Lot Vehicle, Back-up Camera...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: No

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    18 Combined MPG (15 City/22 Highway)

    Listing Information:

    VIN: 1GKS2GKCXJR198770
    Stock: R198770
    Certified Pre-Owned: No
    Listed since: 04-09-2025

    • 8,000 miles
    • No accidents, personal use only
    • 7 Seats, 14 City / 18 Hwy MPG
    • Kolar Chevrolet Buick GMC (253 mi away)
    • AWD/4WD
    • Bluetooth
    • Leather Seats
    • Sunroof/Moonroof
    • Keyless Entry/Start
    Close

    Located in Hermantown, MN / 253 miles away from Appleton, WI

    White Frost Tricoat 2025 GMC Yukon XL Denali 4WD 10-Speed Automatic with Overdrive EcoTec3 6.2L V8

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    16 Combined MPG (14 City/18 Highway)

    Listing Information:

    VIN: 1GKS2JRL9SR134692
    Stock: K25594
    Certified Pre-Owned: No
    Listed since: 12-18-2024

  • $25,979
    fair price
    $753 above market
    • 148,614 miles
    • 1 accident, 1 owner, personal use only
    • 7 Seats, 14 City / 20 Hwy MPG
    • Dutchs Ford (488 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Mount Sterling, KY / 488 miles away from Appleton, WI

    Smokey Quartz Metallic 2019 GMC 4D Sport Utility Yukon XL Denali EcoTec3 6.2L V8 4WDService Records Available, Bluetooth / Hands-free Calling, Moonr...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: No

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    16 Combined MPG (14 City/20 Highway)

    Listing Information:

    VIN: 1GKS2HKJ0KR262708
    Stock: Q262708
    Certified Pre-Owned: No
    Listed since: 03-12-2025

  • Price Drop
    • 16,578 miles
    • No accidents, 1 owner, personal use only
    • 7 Seats, 14 City / 18 Hwy MPG
    • Comodo Motors (178 mi away)
    • AWD/4WD
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Caledonia, MI / 178 miles away from Appleton, WI

    Get ready to conquer the roads in this sleek 2024 GMC Yukon XL! This stunning black beauty is not only a powerhouse on wheels but also a luxurious rid...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    16 Combined MPG (14 City/18 Highway)

    Listing Information:

    VIN: 1GKS2KKT7RR266425
    Stock: C4654
    Certified Pre-Owned: No
    Listed since: 05-15-2025

  • New Listing
    • 13,918 miles
    • No accidents, 1 owner, personal use
    • 7 Seats, 14 City / 18 Hwy MPG
    • Walser Buick GMC Roseville (239 mi away)
    • AWD/4WD
    • Bluetooth
    • Leather Seats
    • Sunroof/Moonroof
    • Keyless Entry/Start
    Close

    Located in Roseville, MN / 239 miles away from Appleton, WI

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    16 Combined MPG (14 City/18 Highway)

    Listing Information:

    VIN: 1GKS2JKL7PR175162
    Stock: 5G1219P
    Certified Pre-Owned: No
    Listed since: 07-10-2025

  • New Listing
    • 9 miles
    • No accidents, 1 owner, personal use only
    • 7 Seats, 14 City / 18 Hwy MPG
    • Billion Auto Buick GMC (416 mi away)
    • AWD/4WD
    • Bluetooth
    • Leather Seats
    • Sunroof/Moonroof
    • Keyless Entry/Start
    Close

    Located in Sioux Falls, SD / 416 miles away from Appleton, WI

    NA

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: Yes

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    16 Combined MPG (14 City/18 Highway)

    Listing Information:

    VIN: 1GKS2JKL3PR521885
    Stock: G31784A
    Certified Pre-Owned: No
    Listed since: 06-10-2025

    • 189,176 miles
    • No accidents, 1 owner, corporate fleet vehicle
    • 8 Seats, 15 City / 22 Hwy MPG
    • Driven Auto of Waukegan (136 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Third-row seating
    • Power Driver Seat
    Close

    Located in Waukegan, IL / 136 miles away from Appleton, WI

    Vehicle Overview Contact Sales Team at 8**-6**-8*** or i***@d*.net for more information. KEY FEATURES AND OPTIONS Comes equipped with: Jet Black, ...

    AutoCheck Vehicle History Summary

    Accident Free Vehicle: Yes

    Personal Use Only: No

    History Provider: AutoCheck

    Title Details: Clean Title

    Salvage Vehicle: No

    Frame Damage: No

    Theft History: No

    Lemon Status: No

    Free History Report: No

    Features and Specs:

    18 Combined MPG (15 City/22 Highway)

    Listing Information:

    VIN: 1GKS2GKC6FR269549
    Stock: 8035
    Certified Pre-Owned: No
    Listed since: 03-21-2025

Showing 1,114 - 1,134 out of 1,551 listings

Consumer Reviews for the GMC Yukon XL

Read recent reviews for the GMC Yukon XL
Overall Consumer Rating
4.5 out of 5 stars61 Reviews
Write a vehicle reviewSee all 61 reviews
  • 5 star
    (69%)
  • 4 star
    (23%)
  • 3 star
    (8%)
  • 2 star
    (0%)
  • 1 star
    (0%)
5 out of 5 stars

Vortec 6.0 is AMAZING! LOVE This Denali XL.

Barry Gartner, 11/29/2015
2005 GMC Yukon XL 1500 SLE Rwd 4dr SUV (5.3L 8cyl 4A)
The Denali XL is everything you need to get your family up to the Cabin, tow your toys, and more. This vehicle is hands down the best vehicle I have ever owned. It is smooth, powerful, comfortable, and has AWD for towing my Ice-House, Boat, Snowmobiles, and ATV's. The Denali has the Vortec 6.0 but this is essentially the same engine as the 5.3. My Vortec 6.0 has 232,948 miles and does … not burn oil between changes. I have had to perform repairs on this vehicle which I will list but most of them were only after 200,000 and well worth the investment. These vehicles will easily go 400,000 with routine maintenance. Maintenance & Tips: **TIP 1** Buy a blue tooth OBD2 adapter online for $20 and then get the Torque App for your iPhone/Android to monitor/trouble-shoot data and reset error codes. **TIP 2** Change the fluids on this truck regularly. It will pay off in the long run. These trucks will last FOREVER. You can do both the front differential, rear differential, and transfer case very easily/cheap. The same goes for the transmission but that takes about 17 quarts and isn't exactly cheap to do a total flush but it is much cheaper than a whole new transmission. **TIP 3** Search Online for videos for trouble-shooting and repair. I guarantee you will find out how to do many of these repairs yourself/cheap. 1. Transmission may go around 200,000 miles = $3,700 to repair. 2. Rear Air Suspension will go around the same time = $800 to $2,700/Dealer to repair. You do not have to put the Air Suspension rear back in/Kit Replacement. I however Love the air suspension for towing, etc. 3. Passenger Side leak into Heater Blower Motor. This shorts out the Fan. Easy fix, take off the wipers and the plastic grate between the windshield and the hood. There is an oval metal plate with cracked brittle caulk. Reseal this or put another bigger metal plate over this with caulk. TIP: Pull out the wet metal heat sink heater fan control module and dry it out. It will come back to life. No need to spend money on this. 4. DON"T spray off this engine at the Self-Serve Car Wash. Water on the top side will drain down and short out the anti-knock sensors on the top of the intake and you will start throwing codes. I had to replace both (2) anti-knock sensors and the wire harness. 5. The intake gasket will need to be replaced at some point if it has not been already. It will throw lean bank 1 or 2 codes when it is time to replace. I think the original was green and the replacement is orange and a better design. Easy fix, just take your time to do it right. 6. If you start to get a random misfire code when it is hot/towing that only happens when you stop it is the front O2 Sensor. Easy fix. Get on the ground and do it yourself. They sell a cheap tool to remove/replace these. 7. Low Oil Pressure when first started cold. Some of these engines will lose oil pressure when first started COLD. Then as the engine warms the oil pressure will come up to normal. That is your clue. A rubber ring in the oil pickup tube has become brittle and cracked. When it warms up it expands and your oil pressure comes back to normal. FIX: Bring this to a shop with some good old boys who are not afraid of a little work. The front differential can be dropped with two people and a hoist in about 20 minutes/intact. This will grant access to drop the oil pan which has to be removed to get to the oil pump pickup tube so that the rubber o-ring can be replaced. $350 - $550 to repair. Don't take it to the dealership for this one. They will want 1K to fix this and it isn't that hard to do. FINAL TIP: Don't be afraid to work on this vehicle. I have performed every repair on this besides the o-ring replacement and the transmission. Working on this has saved me thousands of dollars and prevented me from having to fork out another 50k for a new vehicle. Don't believe for one second that a new GMC truck with the 6.2 is the answer. People are buying these and having oil burning issues from the factory. Not to mention transmission issues, etc. Newer isn't always better. I for one will be driving my 2005 GMC Denali XL for many years to come. Sincerely, Barry G
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