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281 listings
  • Price Drop
    $14,995
    great price
    $3,667 below market
    • 128,500 miles
    • No accidents, 2 owners, personal use only
    • 8 Seats, 15 City / 22 Hwy MPG
    • Case Motor Company (62 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Orange, CA / 62 miles away from Encinitas, CA

    2015 GMC Yukon SLT 5.3 4x4 - 128,500 Miles - 2 Owners - Clean Title - No Accidents - Fresh Service - Excellent Shape - Ready To Hit The Road - Loaded ...

    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:

    18 Combined MPG (15 City/22 Highway)

    Listing Information:

    VIN: 1GKS2HKC7FR732269
    Stock: 7322692
    Certified Pre-Owned: No
    Listed since: 05-11-2025

  • $49,985
    great price
    $8,579 below market
    • 63,689 miles
    • No accidents, 1 owner, corporate fleet vehicle
    • 7 Seats, 14 City / 19 Hwy MPG
    • Paradise Automotive (38 mi away)
    • Bluetooth
    • Leather Seats
    • Sunroof/Moonroof
    • Keyless Entry/Start
    • Third-row seating
    Close

    Located in San Juan Capistrano, CA / 38 miles away from Encinitas, CA

    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:

    16 Combined MPG (14 City/19 Highway)

    Listing Information:

    VIN: 1GKS1JKL8NR181178
    Stock: 181178
    Certified Pre-Owned: No
    Listed since: 05-21-2024

  • Price Drop
    $38,995
    great price
    $5,448 below market
    • 110,008 miles
    • No accidents, 2 owners, personal use only
    • 7 Seats, 14 City / 20 Hwy MPG
    • Horizon Motor Group (94 mi away)
    • Bluetooth
    • Navigation
    • Leather Seats
    • Sunroof/Moonroof
    • Keyless Entry/Start
    Close

    Located in Los Angeles, CA / 94 miles away from Encinitas, CA

    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/20 Highway)

    Listing Information:

    VIN: 1GKS1JKL2MR184026
    Stock: 184026
    Certified Pre-Owned: No
    Listed since: 12-21-2024

  • New Listing
    $22,998
    great price
    $3,658 below market
    • 119,087 miles
    • No accidents, 1 owner, personal use only
    • 7 Seats, 15 City / 22 Hwy MPG
    • Laguna Auto Sales (188 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Bakersfield, CA / 188 miles away from Encinitas, CA

    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:

    18 Combined MPG (15 City/22 Highway)

    Listing Information:

    VIN: 1GKS2GKC8JR347144
    Stock: 1481
    Certified Pre-Owned: No
    Listed since: 06-01-2025

  • Advertisement

    3 Offers Nearby

    2025 GMC Yukon Denali Ultimate
    $78,995
    starting MSRP
    • 6 Colors
    • 5 Trims
    • 8 Packages
    View Offers 
    *The Manufacturer’s Suggested Retail Price excludes destination freight charge, tax, title, license, dealer fees, and optional equipment. Dealer sets final price. Click here to see all GMC vehicles’ destination freight charges.
  • $49,688
    great price
    $6,106 below market
    • 57,158 miles
    • No accidents, 1 owner, corporate fleet vehicle
    • 8 Seats, 15 City / 19 Hwy MPG
    • Kar Genie (74 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Keyless Entry/Start
    Close

    Located in Montclair, CA / 74 miles away from Encinitas, CA

    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:

    16 Combined MPG (15 City/19 Highway)

    Listing Information:

    VIN: 1GKS2GKD7PR346035
    Stock: P75737
    Certified Pre-Owned: No

  • Price Drop
    $50,590
    great price
    $6,222 below market
    • 69,874 miles
    • No accidents, 2 owners, rental vehicle
    • 7 Seats, 14 City / 19 Hwy MPG
    • Carvana (In-stock online)
    • Home delivery*
    • Bluetooth
    • Leather Seats
    • Sunroof/Moonroof
    • Keyless Entry/Start
    • Third-row seating
    Close

    Located in Atlanta, GA / 1,885 miles away from Encinitas, CA

    At Carvana, we go miles beyond the extra mile. That's why we provide you with a convenient, fast, and hassle-free car buying experience that puts you ...

    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:

    16 Combined MPG (14 City/19 Highway)

    Listing Information:

    VIN: 1GKS1JKL5NR244429
    Stock: 2003777159
    Certified Pre-Owned: No
    Listed since: 06-06-2025

  • New Listing
    $51,590
    good price
    $4,930 below market
    • 76,418 miles
    • No accidents, 2 owners, personal use only
    • 7 Seats, 14 City / 19 Hwy MPG
    • Carvana (In-stock online)
    • Home delivery*
    • AWD/4WD
    • Bluetooth
    • Leather Seats
    • Sunroof/Moonroof
    • Keyless Entry/Start
    Close

    Located in Charlotte, NC / 2,078 miles away from Encinitas, CA

    At Carvana, we go miles beyond the extra mile. That's why we provide you with a convenient, fast, and hassle-free car buying experience that puts you ...

    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: 1GKS2JKL3NR237881
    Stock: 2003511120
    Certified Pre-Owned: No
    Listed since: 03-17-2025

  • $46,997
    great price
    $4,362 below market
    • 61,979 miles
    • No accidents, 1 owner, rental vehicle
    • 8 Seats, 15 City / 20 Hwy MPG
    • Driveway (In-stock online)
    • Home delivery*
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Keyless Entry/Start
    • Third-row seating
    Close

    Located in Wesley Chapel, FL / 2,090 miles away from Encinitas, CA

    CarFax 1-Owner,Rare Find,3rd Row Seat,Apple CarPlay,Back-Up Camera,Blind Spot Monitor,Bluetooth,Brake Assist,Heated Seats,Keyless Start,Lane Keeping A...

    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:

    17 Combined MPG (15 City/20 Highway)

    Listing Information:

    VIN: 1GKS1GKD7PR290620
    Stock: C290620P
    Certified Pre-Owned: No

  • Advertisement

    3 Offers Nearby

    2025 GMC Yukon Denali Ultimate
    $78,995
    starting MSRP
    • 6 Colors
    • 5 Trims
    • 8 Packages
    View Offers 
    *The Manufacturer’s Suggested Retail Price excludes destination freight charge, tax, title, license, dealer fees, and optional equipment. Dealer sets final price. Click here to see all GMC vehicles’ destination freight charges.
  • Stock photo**
    $60,767
    great price
    $7,252 below market
    • 46,157 miles
    • No accidents, 1 owner, personal use only
    • 7 Seats
    • Hemet Chrysler Dodge Jeep Ram (49 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Hemet, CA / 49 miles away from Encinitas, CA

    This 2022 Onyx Black GMC Yukon XL AT4 4WD is well equipped and includes these features and benefits: AT4 Premium Package (Dual-Pane Panoramic Power Su...

    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:

    Listing Information:

    VIN: 1GKS2HKL7NR109605
    Stock: P11088
    Certified Pre-Owned: No
    Listed since: 06-11-2025

  • $18,885
    great price
    $2,754 below market
    • 159,855 miles
    • 1 accident, 2 owners, personal use only
    • 7 Seats, 14 City / 20 Hwy MPG
    • Regency USA Inc (76 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Wilmington, CA / 76 miles away from Encinitas, CA

    Located at Regency USA Inc Wilmington, CA.325 E Anaheim street, Wilmington, CA 90744Sales: (4**) 2** - 2***

    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: 1GKS2HKJ4HR138482
    Stock: 138482
    Certified Pre-Owned: No
    Listed since: 08-17-2024

  • $18,500
    good price
    $2,983 below market
    • 130,295 miles
    • No accidents, 1 owner, corporate fleet vehicle
    • 7 Seats, 15 City / 22 Hwy MPG
    • Big Lot Auto Sales (70 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Brea, CA / 70 miles away from Encinitas, CA

    Reliable, Clean & Ready Looking for a great deal on a dependable car? This one s in EXCELLENT condition and fully ready for a new owner. Whether you'r...

    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: 1GKS2GKC2GR324547
    Stock: 2539
    Certified Pre-Owned: No
    Listed since: 06-06-2025

  • New Listing
    $17,900
    good price
    $3,420 below market
    • 112,000 miles
    • 8 Seats, 15 City / 22 Hwy MPG
    • Desert Auto Dealer (71 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Third-row seating
    Close

    Located in Palm Desert, CA / 71 miles away from Encinitas, CA

    AutoCheck Vehicle History Summary Unavailable.

    Features and Specs:

    18 Combined MPG (15 City/22 Highway)

    Listing Information:

    VIN: 1GKS2HKC9FR501115
    Stock: 501115
    Certified Pre-Owned: No

  • Advertisement

    3 Offers Nearby

    2025 GMC Yukon Denali Ultimate
    $78,995
    starting MSRP
    • 6 Colors
    • 5 Trims
    • 8 Packages
    View Offers 
    *The Manufacturer’s Suggested Retail Price excludes destination freight charge, tax, title, license, dealer fees, and optional equipment. Dealer sets final price. Click here to see all GMC vehicles’ destination freight charges.
  • New Listing
    $61,990
    good price
    $3,678 below market
    • 22,150 miles
    • No accidents, 1 owner, personal use only
    • 7 Seats, 15 City / 19 Hwy MPG
    • Carvana (In-stock online)
    • Home delivery*
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Indianapolis, IN / 1,780 miles away from Encinitas, CA

    At Carvana, we go miles beyond the extra mile. That's why we provide you with a convenient, fast, and hassle-free car buying experience that puts you ...

    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: 1GKS2GKD5PR432198
    Stock: 2003826273
    Certified Pre-Owned: No
    Listed since: 06-25-2025

  • $43,995
    great price
    $2,187 below market
    • 49,353 miles
    • No accidents, 1 owner, personal use only
    • 8 Seats, 15 City / 20 Hwy MPG
    • Pacific Auto Center (57 mi away)
    • Back-up camera
    • Bluetooth
    • Keyless Entry/Start
    • Third-row seating
    • Upgraded Headlights
    Close

    Located in Costa Mesa, CA / 57 miles away from Encinitas, CA

    **CLEAN CARFAX**, **ONE OWNER CARFAX**, **RWD**, **DUAL ZONE A/C**, **POWER WINDOWS**, **POWER SEATS**, **POWER DOOR LOCKS**, **3RD ROW SEATS**. EcoTe...

    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:

    17 Combined MPG (15 City/20 Highway)

    Listing Information:

    VIN: 1GKS1FKD5PR121626
    Stock: 57580
    Certified Pre-Owned: No
    Listed since: 05-27-2025

  • Price Drop
    $38,590
    fair price
    $1,443 below market
    • 80,092 miles
    • No accidents, 2 owners, personal use only
    • 7 Seats, 14 City / 20 Hwy MPG
    • Carvana (In-stock online)
    • Home delivery*
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Salt Lake City, UT / 611 miles away from Encinitas, CA

    At Carvana, we go miles beyond the extra mile. That's why we provide you with a convenient, fast, and hassle-free car buying experience that puts you ...

    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/20 Highway)

    Listing Information:

    VIN: 1GKS2HKJ1KR131786
    Stock: 2003720065
    Certified Pre-Owned: No
    Listed since: 05-15-2025

  • $45,950
    good price
    $3,862 below market
    • 55,848 miles
    • No accidents, 1 owner, corporate fleet vehicle
    • 7 Seats, 15 City / 19 Hwy MPG
    • Southern California Preowned (63 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Leather Seats
    • Sunroof/Moonroof
    Close

    Located in Orange, CA / 63 miles away from Encinitas, CA

    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:

    17 Combined MPG (15 City/19 Highway)

    Listing Information:

    VIN: 1GKS2GKD3MR408395
    Stock: MR408395
    Certified Pre-Owned: No
    Listed since: 12-25-2024

  • Advertisement

    3 Offers Nearby

    2025 GMC Yukon Denali Ultimate
    $78,995
    starting MSRP
    • 6 Colors
    • 5 Trims
    • 8 Packages
    View Offers 
    *The Manufacturer’s Suggested Retail Price excludes destination freight charge, tax, title, license, dealer fees, and optional equipment. Dealer sets final price. Click here to see all GMC vehicles’ destination freight charges.
  • $19,999
    great price
    $2,206 below market
    • 146,487 miles
    • 1 accident, 1 owner, personal use only
    • 7 Seats, 14 City / 20 Hwy MPG
    • Eagle Motors (100 mi away)
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Victorville, CA / 100 miles away from Encinitas, CA

    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: 1GKS2HKJ5HR360867
    Stock: 2224
    Certified Pre-Owned: No

  • Price Drop
    $59,999
    good price
    $2,770 below market
    • 20,437 miles
    • No accidents, 1 owner, personal use only
    • 7 Seats, 15 City / 20 Hwy MPG
    • Aaron Chevrolet (42 mi away)
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    • Keyless Entry/Start
    Close

    Located in Lake Elsinore, CA / 42 miles away from Encinitas, CA

    Priced below KBB Fair Purchase Price!EcoTec3 5.3L V8, White Frost Tricoat, Jet Black Leather, 12-Way Power Seat Adjusters, 2 Presets For Outside Rearv...

    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:

    17 Combined MPG (15 City/20 Highway)

    Listing Information:

    VIN: 1GKS1GKD1RR245269
    Stock: 301608P
    Certified Pre-Owned: No
    Listed since: 05-14-2025

  • $19,888
    fair price
    $2,640 below market
    • 133,175 miles
    • No accidents, 1 owner, personal use only
    • 8 Seats, 16 City / 23 Hwy MPG
    • CarTag USA (186 mi away)
    • Back-up camera
    • Bluetooth
    • Third-row seating
    • Power Driver Seat
    • Tire Pressure Warnin...
    Close

    Located in Bakersfield, CA / 186 miles away from Encinitas, CA

    1 OWNER CLEAN C

    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:

    19 Combined MPG (16 City/23 Highway)

    Listing Information:

    VIN: 1GKS1FKC3JR182276
    Stock: 3205
    Certified Pre-Owned: No

  • New Listing
    $48,590
    fair price
    $2,046 below market
    • 71,608 miles
    • No accidents, 1 owner, corporate fleet vehicle
    • 7 Seats, 14 City / 19 Hwy MPG
    • Carvana (In-stock online)
    • Home delivery*
    • Bluetooth
    • Leather Seats
    • Keyless Entry/Start
    • Third-row seating
    • Upgraded Headlights
    Close

    Located in Sacramento, CA / 440 miles away from Encinitas, CA

    At Carvana, we go miles beyond the extra mile. That's why we provide you with a convenient, fast, and hassle-free car buying experience that puts you ...

    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:

    16 Combined MPG (14 City/19 Highway)

    Listing Information:

    VIN: 1GKS1JKL7PR163189
    Stock: 2003546625
    Certified Pre-Owned: No
    Listed since: 03-07-2025

  • Price Drop
    $35,233
    good price
    $3,346 below market
    • 77,616 miles
    • No accidents, 1 owner, personal use only
    • 7 Seats, 14 City / 21 Hwy MPG
    • Driveway (In-stock online)
    • Home delivery*
    • AWD/4WD
    • Back-up camera
    • Bluetooth
    • Navigation
    • Leather Seats
    Close

    Located in Billings, MT / 993 miles away from Encinitas, CA

    CarFax No Accidents Reported,CarFax 1-Owner,Rare Find,3rd Row Seat,Apple CarPlay,Back-Up Camera,Blind Spot Monitor,Bluetooth,Brake Assist,Chrome Wheel...

    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: 1GKS2HKJ8JR186220
    Stock: 53833BM
    Certified Pre-Owned: No

Showing 64 - 84 out of 281 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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