Question about GMC Yukon XL

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My 2003 Yukon has 110000 miles. I know the plugs and wires need replaced. What else should I do.

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97,500 Miles (162 500 km)

    • Check rear/front axle fluid level and add fluid as needed. Check constant velocity joints and axle seals for leaking.
    • Rotate tires. See Tire Inspection and Rotation for proper rotation pattern and additional information. (See footnote +.)
100,000 Miles (166 000 km)
    • Inspect spark plug wires. An Emission Control Service.
    • Replace spark plugs. An Emission Control Service.
    • Change automatic transmission fluid and filter if the vehicle's GVWR is over 8,600 lbs or if the vehicle is mainly driven under one or more of these conditions:
    In heavy city traffic where the outside temperature regularly reaches 90°F (32°C) or higher.
    In hilly or mountainous terrain.
    When doing frequent trailer towing.
    Uses such as found in taxi, police or delivery service.
    • If you have not used your vehicle under severe service conditions listed previously and, therefore, have not changed your automatic transmission fluid, change both the fluid and filter.
    • Change transfer case fluid.
    • Except 8.1L V8 Engine: Inspect Positive Crankcase Ventilation (PCV) valve. An Emission Control Service.
150,000 Miles (240 000 km)
    • Drain, flush and refill cooling system (or every 60 months since last service, whichever occurs first). See Engine Coolant for what to use. Inspect hoses. Clean radiator, condenser, pressure cap and neck. Pressure test the cooling system and pressure cap. An Emission Control Service.
    • Inspect engine accessory drive belt. An Emission Control Service.

Posted on Sep 03, 2010

  • Jonathan S
    Jonathan S Sep 03, 2010

    Info provided out of owners manual

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PCV valve if it has one, some GM trucks do not. air filter, use some strong fuel injection cleaner, not much else, other parts in this system are replaced as they fail. (cam position sensor, coils etc.)

be sure to grease the wire boots to prevent moisture and corrosion, and you might consider anti-seize on the plug threads.

Posted on Sep 03, 2010

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2003 GMC Yukon speedometer indicates less than actual speed by 30% - 60%.


Do you have after market tires that are larger than stock ? This will affect your speedometer.Another thing could be the speedometer gear which is easy and cheap. Its at the end of your speedometer cable inside of transfer case.

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HOW TO REPLACE 2003 YUKON GMC SPARK PLUGS


Remove the wire from the top of the spark plug by twisting and pulling on the boot part. Then you will need a 14 milimeter plug scocket wrench, turn the wrench counter-clockwise to remove. You install them by doing the steps in reverse. A note of caution: the tightening force is 15 foot pounds of torque whitch isn't a lot of force.
The original spark pulgs are good for at least 100,000 miles unless it's had a problem to cause them to fail. Also installing a different type plug then original equipment has lead to poor performance at times.

Feb 13, 2011 | 2003 GMC Yukon

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My tahoe has 110000 miles on it. Need maintenance Info.


Ever 3,000 miles 1 Engine oil and filter 2 Lube suspension and u joint
Every 10,000 miles 1 Rotate wheels 2 Inspect for worn steering parts 3 Replace fuel filter 4 Replace air filter
Every 40,000 miles 1 Transmission oil, filter and boost valve 2 Transfer case 3 Front and Rear axle oil changed
Every 100,000 miles 1 Service ignition system. Spark plugs/ wires ECT 2 Service cooling system, Thermostat and coolant flush
Thank you for using fixya and replace any worn parts though out inspection during servicing

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Replace spedometer cable 2003 gmc yukon xl


There is no speedometer cable on the 2003 Yukon, if there is no transmission issues like shifting problem. Your instrument cluster has gone bad, to pinpoint. Your stepper motor to your speedometer gauge has failed and needs to be replaced. You can do a search on Ebay for the stepper motor for around $10.00 which is better then the $400.00 cost of another instrument cluster.
There was a TSB on the replacement of the instrument cluster for your Yukon free of charge. The only cost to you is the labor charge unless your willing to do the job your self. Just go to the Gm Dealer and give them this TSB Number: # 07187C: Special Coverage Adjustment - Instrument Panel Cluster Gauge Needle Function - (Mar 20, 2009)
Subject:
07187C -- SPECIAL COVERAGE ADJUSTMENT - INSTRUMENT PANEL CLUSTER GAUGE NEEDLE FUNCTION

Models:
2003-2004 CADILLAC ESCALADE, ESCALADE ESV, ESCALADE EXT
2005 CADILLAC ESCALADE, ESCALADE ESV, ESCALADE EXT (U.S. ONLY)
2003-2004 CHEVROLET AVALANCHE, SILVERADO, SUBURBAN, TAHOE
2005 CHEVROLET AVALANCHE, SILVERADO, SUBURBAN, TAHOE (U.S.ONLY)
2003-2004 GMC SIERRA, YUKON, YUKON XL
2005 GMC SIERRA, YUKON, YUKON XL (U.S. ONLY)

Some customers of all 2003-2004 model year and certain U.S. 2005 model year Cadillac Escalade, Escalade ESV, and Escalade EXT; Chevrolet Avalanche, Silverado, Suburban, and Tahoe; and GMC Sierra, Yukon, and Yukon XL vehicles have reported that one or more of the instrument panel (IP) cluster gauges stick, flutter, or become inoperative. This may cause inaccurate readings, including the speedometer and fuel gauge. Special Coverage Adjustment This special coverage covers the condition described above for a period of 7 years or 70,000 miles (110,000 km), whichever occurs first, from the date the vehicle was originally placed in service, regardless of ownership.
Dealers are to replace the instrument panel cluster after the condition has been verified. The repairs will be made at no charge to the customer.

For verified failures between 70,001 miles (110,001 km) and 80,000 miles (130,000 km) on U.S. vehicles, dealers are to provide the customer with an instrument panel cluster (IPC) only. Any additional costs, including labor to replace the instrument panel cluster, will be the responsibility of the customer. Dealers are responsible for the return of the customer's IPC back to the Electronic Service Center

Thank you for using fixya and good luck.

Apr 28, 2010 | 2003 GMC Yukon XL

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Yes and 80,000 miles and change the water pump the same time too

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2003 Yukon, rough idle, extreme power loss,code PO300, miss firing. Changed plugs,wires, and fuel filter with no change.?????


My brother had a similar issue with his Ford F-150, he needed the fuel injectors replaced. Good Luck!

Sep 30, 2009 | 2003 GMC Yukon XL

4 Answers

WHAT PARTS DO I NEED TO TUNE UP MY 2003 GMC YUKON XL


you don have to do much to that gmc as long the coil is good, just replace all 8 spark plugs, air filter and basic oil and filter change; use good brands of oil, such as castro, mobile, shells ect. if your the original owner and have high miles and never have replace thermostat, I would go ahead and have it done, I would not wait until it fail and over heat on you. if you have done lot of pulling with your vehicle and have 75-100k mile, have your transmission flush with new filter, it will give the tanny life last a bit longer.

Sep 25, 2009 | 2003 GMC Yukon XL

3 Answers

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