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GMC Yukon 2000–2006

GMC YukonModel years 2000–2006

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1 conditions added

Common on this vehicle:Warning lightMisfire or rough idleLoss of engine power, no accelerationStalls or shuts offLeak

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4 records state a cause or a remedy. Each record is shown as short labels in the order fault → finding the cause → correction. Press a label to narrow to the records that state it.

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Known issuesIntake manifold gasket leak (cold idle misfire, lean codes)1

  1. Manufacturer communication2000–2006 GMC 5.3L L59 (E85 CAPABLE), AS WELL AS THE OTHER GEN 3 AND GEN 4 ENGINES (YUKON) ・ 2005-05-01

    P0300 from a leak at the upper manifold gasket: only the new teal green gasket 89017589 for repairs on the L59

    1. 1Fault

      • When a leak between the upper manifold and the gasket causes P0300 to set.

    2. 2Finding the cause

      Not stated

    3. 3Correction

      Repair

      • Use only the 89017589 gasket (teal green) for repairs on the L59 engine, and do not replace the upper manifold unless it measures outside of the service manual specifications or is damaged.

      Parts

      • A new gasket made of FNK material (GM SPO p/n 89017589) has been released. The new gasket material is teal green; the original gaskets are orange.
      • The service kit containing the new gasket was released in October 2004. A small quantity of the old gasket kit, p/n 17113557, which contains two p/n 17122608 (orange) gaskets, remains in the system.
      • The 17113557 gasket (orange) can be used on the other engines. Once the 17113557 has been exhausted, only the 89017589 will be available for all engines.

      Part numbers printed in the document

      The numbers are as the document prints them. The name and the replacing number are what the pages of GMPartsGiant, a reseller of genuine parts and not GM, state. Aftermarket equivalents are not checked here (the links only search by number). Confirm the fit for the vehicle (VIN) before ordering.

      Caution

      • In that case, do not replace the entire upper manifold assembly, upper plenum and gaskets.
    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：Applies specifically to the 5.3L L59 (E85 capable), as well as the other Gen 3 and Gen 4 engines.
    • Condition：When a leak between the upper manifold and the gasket causes P0300 to set.
    • Caution：In that case, do not replace the entire upper manifold assembly, upper plenum and gaskets.
    • Parts：A new gasket made of FNK material (GM SPO p/n 89017589) has been released. The new gasket material is teal green; the original gaskets are orange.
    • Parts：The service kit containing the new gasket was released in October 2004. A small quantity of the old gasket kit, p/n 17113557, which contains two p/n 17122608 (orange) gaskets, remains in the system.
    • Repair：Use only the 89017589 gasket (teal green) for repairs on the L59 engine, and do not replace the upper manifold unless it measures outside of the service manual specifications or is damaged.
    • Parts：The 17113557 gasket (orange) can be used on the other engines. Once the 17113557 has been exhausted, only the 89017589 will be available for all engines.

    Open this issue of GM TechLink ↗ The points above are read from an article of TechLink, GM’s monthly publication for dealership technicians. The article itself is not reproduced here.

    Remedy
    Upper Manifold Gasket Leak This information applies specifically to the 5.3L L59 (E85 capable), as well as the other Gen 3 and Gen 4 engines. If a leak between the upper manifold and gasket causes a DTC P0300 to set, do not replace the entire upper manifold assembly, upper plenum and gaskets. If a leak between the upper manifold and gasket causes a DTC P0300 to set, do not replace the entire upper manifold assembly, upper plenum and gaskets. A new gasket made of FNK material (GM SPO p/n 89017589) has been released. The new gasket material is teal green in color (fig. 7) ; the original gaskets are orange. The service kit containing the new gasket was released in October 2004. A small quantity of the old gasket kit, p/n 17113557, which contains two p/n 17122608 (orange) gaskets, remains in the system. Use only the 89017589 gasket (teal green) for repairs on the L59 engine, and do not replace the upper manifold unless it measures outside of the service manual specifications or is damaged. The 17113557 gasket (orange) can be used on the other engines. Once the 17113557 has been exhausted, only the 89017589 will be available for all engines.

ENGINE AND ENGINE COOLING1

  1. Manufacturer communication2002–2004 GMC YUKON ・ 2005-11-03

    Flexible Fuel (RPO L59) Rough Idle and Misfire Diagnostic

    1. 1Fault

    2. 2Finding the cause

      Not stated

    3. 3Correction

      FLEXIBLE FUEL (RPO L59) ROUGH IDLE, MISFIRE, MALFUNCTION INDICATOR LAMP DIAGNOSTIC TROUBLE CODE P0300. *TT

    Read the sentences of the record
    Remedy
    FLEXIBLE FUEL (RPO L59) ROUGH IDLE, MISFIRE, MALFUNCTION INDICATOR LAMP DIAGNOSTIC TROUBLE CODE P0300. *TT

FUEL SYSTEM, GASOLINE1

  1. Manufacturer communication2000–2006 GMC YUKON DENALI ・ 2018-05-21(1 earlier editions of this document folded here)

    E85 Fuel Effects on Non-E85 Vehicles Information

    1. 1Fault

      • Using this fuel in a non-compatible vehicle may cause lean driveability concerns such as hesitation, sag and/or possible stalling.
      • Fuel trim DTC P0171 and/or P0174 may set.
      • Misfire DTC P0300 may set.
      • A Traction Control, Stability System or ABS lamp may illuminate, or a message may display in the DIC (if equipped).
      • Harsh and/or firm transmission shifts may occur because the transmission defaults to maximum line pressure.

    2. 2Finding the cause

      Steps to confirm (in the document’s order)

      1. Alcohol content is checked using Special Tool J-44175-A Fuel Composition Tester or CH-44175-A Fuel Composition Tester.
      2. General Motors started putting yellow gas caps on E85 Flex Fuel Vehicles (FFVs) as of Model Year 2006.

    3. 3Correction

      Repair

      • If the ethanol content exceeds the Owner Manual maximum of 10% or 15%, drain the fuel and refill the vehicle with gasoline, preferably a Top Tier brand.

      Caution

      • All Model Year 2011 and older non-FFV gasoline vehicles are designed to run on fuel containing no more than 10% ethanol.
      • Diesel engines are not E85 compatible.
    Read the sentences of the record

    From the manufacturer’s document

    • Applies to：The list of compatible flexible-fuel vehicles includes 2002–2005 fullsize pickups and utilities with 5.3L, RPO L59.
    • Applies to：The list of compatible flexible-fuel vehicles includes 2006 Sierra, Yukon and Yukon XL with 5.3L, RPO L59.
    • Caution：All Model Year 2011 and older non-FFV gasoline vehicles are designed to run on fuel containing no more than 10% ethanol.
    • Caution：Diesel engines are not E85 compatible.
    • Condition：Using this fuel in a non-compatible vehicle may cause lean driveability concerns such as hesitation, sag and/or possible stalling.
    • Condition：Fuel trim DTC P0171 and/or P0174 may set.
    • Condition：Misfire DTC P0300 may set.
    • Condition：A Traction Control, Stability System or ABS lamp may illuminate, or a message may display in the DIC (if equipped).
    • Condition：Harsh and/or firm transmission shifts may occur because the transmission defaults to maximum line pressure.
    • Confirm：Alcohol content is checked using Special Tool J-44175-A Fuel Composition Tester or CH-44175-A Fuel Composition Tester.
    • Repair：If the ethanol content exceeds the Owner Manual maximum of 10% or 15%, drain the fuel and refill the vehicle with gasoline, preferably a Top Tier brand.
    • Confirm：General Motors started putting yellow gas caps on E85 Flex Fuel Vehicles (FFVs) as of Model Year 2006.

    Open the manufacturer’s document (PDF) ↗ The points above were read from this document.

    Remedy
    This informational bulletin provides the technician with information on what E85 fuel may due to a non E85 vehicle.

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