GMC Yukon XL 2000–2006
Common on this vehicle:Warning lightLoss of engine power, no accelerationStalls or shuts offMisfire or rough idleLeakNoiseGauge or instrument faultDoes not start
Record by record
12 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.
Symptom
Component named as the cause
How it is said to have ended
- says it was fixed1
A ribbon is as wide as the records that state both of its ends (only the commonest are drawn). A record that names several symptoms or components runs through each. Orange is records that say the fault came back or was not fixed. Results come from owners’ reports only; one that does not say is “result not stated”. None of this is a likelihood of a cause or a rate at which work succeeds.
Read the records one by one (9)
Known issuesIntake manifold gasket leak (cold idle misfire, lean codes)1
Owner complaint2002 GMC YUKON XL ・ 2006-03-02
1Fault
2Finding the cause
3Correction
Not stated
What the documents say to do
Intake manifold gasket leak (cold idle misfire, lean codes)Confirm
- The seals may leak around the bottom side of the port, which makes the vacuum leak hard to detect.
Repair
- Only the current teal green gaskets should be used; the old gaskets were orange.
- The intake bolts must be replaced and not reused.
Caution
- Do not measure the intake manifold across all four intake runner ports.
Read the sentences of the record
- Fault
- ORIGINAL PROBLEM: MY 2002 YUKON XL WAS RUNNING POORLY WHEN THE WEATHER TURNED COLD - BELOW 30 DEGREES. (1 more)
- Cause
- BOTH PROBLEMS ARE BECAUSE THEY WERE DESIGNED FOR USE WITH ETHANOL OR UNLEADED GAS.
- Inspection
- PROBLEM DIAGNOSED AS FAULTY INTAKE GASKETS DUE TO IMPROPER DESIGN. (1 more)
ENGINE3
Manufacturer communication2000–2006 GMC YUKON XL DENALI ・ 2024-07-16(2 earlier editions of this document folded here)
Fuel Injection Cleaner Kit Service Bulletin
1Fault
- Hard start or long crank
- Misfire or rough idle
- Does not start
- Warning light
- Check engine / Service Engine Soon
- P0300
- P0301
- P0302
- P0303
- P0304
- P0305
- Rough idle, crank no start, extended crank or misfire, with the engine warning lamp on and DTC P0300, P0301, P0302, P0303, P0304, P0305, P0306, P0307 or P0308 set.
- When the engine is cold, compression on multiple cylinders may be zero.
- The engine may pop through the intake or exhaust while cranking, and the spark plugs may be fuel fouled.
2Finding the cause
Possible causes
- Major carbon build-up on the intake and/or exhaust valves from fuel contamination or incomplete burning of the fuel; misfires should not appear before at least 8,000 km (5,000 mi).
3Correction
Repair
- If there is no valve damage and no cam follower out of place, perform the cleaning procedure to free sticking valves and remove carbon from the valves and pistons.
- If valves are damaged or cam followers are out of place, make the engine mechanical repairs first and then perform the cleaning procedure to prevent a return.
- Fill Cleaner Kit J-35800-A with about 650 ml (22 oz, 2 cans) of Air Intake, Combustion Chamber Cleaner and set the air pressure at the tool to 260 kPa (40 psi).
- With GDS 2 or a scan tool, command engine idle to 2000 rpm so the engine does not stall.
- With the engine at operating temperature in a well-ventilated area, slowly and carefully induce the cleaner into the engine, taking about 3 minutes.
Parts
- The Top Engine Cleaning Kit (ACDelco Air Intake, Valve and Combustion Chamber Cleaner and ACDelco Fuel System Cleaner 44K) is 19435372 for the U.S. and Canada.
Part numbers printed in the document
19435372MAINTENANCE KIT,FUEL SYSTEM ACDELCO 3-11OZLook up at RockAuto (aftermarket candidates) ↗Search the web ↗
No successor statedas stated by GMPartsGiant (checked 2026-10-06) ↗
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
- Inducing too much cleaner at too low an RPM, or stalling the engine with too much cleaner at once, may hydro-lock the engine and bend a connecting rod.
Read the sentences of the record
From the manufacturer’s document
- Applies to:Applies to GM passenger cars and trucks with gasoline engines only, model years 2000 to 2025.
- Condition:Rough idle, crank no start, extended crank or misfire, with the engine warning lamp on and DTC P0300, P0301, P0302, P0303, P0304, P0305, P0306, P0307 or P0308 set.
- Condition:When the engine is cold, compression on multiple cylinders may be zero.
- Condition:The engine may pop through the intake or exhaust while cranking, and the spark plugs may be fuel fouled.
- Cause:Major carbon build-up on the intake and/or exhaust valves from fuel contamination or incomplete burning of the fuel; misfires should not appear before at least 8,000 km (5,000 mi).
- Repair:If there is no valve damage and no cam follower out of place, perform the cleaning procedure to free sticking valves and remove carbon from the valves and pistons.
- Repair:If valves are damaged or cam followers are out of place, make the engine mechanical repairs first and then perform the cleaning procedure to prevent a return.
- Caution:Inducing too much cleaner at too low an RPM, or stalling the engine with too much cleaner at once, may hydro-lock the engine and bend a connecting rod.
- Repair:Fill Cleaner Kit J-35800-A with about 650 ml (22 oz, 2 cans) of Air Intake, Combustion Chamber Cleaner and set the air pressure at the tool to 260 kPa (40 psi).
- Repair:With GDS 2 or a scan tool, command engine idle to 2000 rpm so the engine does not stall.
- Repair:With the engine at operating temperature in a well-ventilated area, slowly and carefully induce the cleaner into the engine, taking about 3 minutes.
- Parts:The Top Engine Cleaning Kit (ACDelco Air Intake, Valve and Combustion Chamber Cleaner and ACDelco Fuel System Cleaner 44K) is 19435372 for the U.S. and Canada.
Open the manufacturer’s document (PDF) ↗ The points above were read from this document.
- Remedy
- This service bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended crank or misfire, MIL with DTCs, and explains how Top Tier fuels should be used to reduce carbon build-up.
Manufacturer communication2000–2006 GMC YUKON XL ・ 2017-08-15(1 earlier editions of this document folded here)
Engine Misfire and Rough Idle Malfunction Indicator Lamp
1Fault
- Hard start or long crank
- Misfire or rough idle
- Does not start
- Warning light
- Check engine / Service Engine Soon
- P0300
- P0308
- Customers may complain of a MIL and/or engine misfire, rough idle, extended crank, or crank no start.
- One or more misfire codes (DTC P0300-P0308) are found stored in the ECM.
2Finding the cause
Possible causes
- The condition may result from major carbon build up on the intake and/or exhaust valves due to fuel contamination or incomplete burning of the fuel.
Steps to confirm (in the document’s order)
- With the engine cold, compression on multiple cylinders may read 0 PSI (= 0 kPa).
- The engine may pop through the intake or exhaust while cranking, and the spark plugs may be fuel fouled.
3Correction
Repair
- If there is valve damage or cam followers are out of place, make the mechanical repairs first, then perform the cleaning procedure to keep the concern from returning.
- With the engine at operating temperature, slowly induce a bottle of GM Upper Engine and Fuel Injection Cleaner with RPM held above idle so the engine does not stall (typically around 2,000 RPM).
- Turn the engine off and let the cleaner soak for 2.5 to 3 hours.
- To complete the repair, change the engine oil and filter.
Parts
- Upper Engine and Fuel Injector Cleaner is P/N 88861803 (in Canada, P/N 88861804).
Part numbers printed in the document
88861803Cleaner,Fuel Injector & Upper Engine Acdelco 16OzLook up at RockAuto (aftermarket candidates) ↗Search the web ↗
Replaced by: 19355198as stated by GMPartsGiant (checked 2026-10-06) ↗Look up at RockAuto (aftermarket candidates) ↗Search the web ↗
88861804Cleaner,Fuel Injector & Upper Engine Acdelco .473LLook up at RockAuto (aftermarket candidates) ↗Search the web ↗
Discontinued (no successor stated)(replaces 21992873)as stated by GMPartsGiant (checked 2026-10-06) ↗
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
- Inducing too much cleaner at too low an RPM, or stalling the engine with cleaner, may hydro-lock the engine and bend a connecting rod.
Read the sentences of the record
From the manufacturer’s document
- Applies to:Applies to all 2000-2015 light duty trucks with gasoline engines.
- Condition:Customers may complain of a MIL and/or engine misfire, rough idle, extended crank, or crank no start.
- Condition:One or more misfire codes (DTC P0300-P0308) are found stored in the ECM.
- Cause:The condition may result from major carbon build up on the intake and/or exhaust valves due to fuel contamination or incomplete burning of the fuel.
- Confirm:With the engine cold, compression on multiple cylinders may read 0 PSI (= 0 kPa).
- Confirm:The engine may pop through the intake or exhaust while cranking, and the spark plugs may be fuel fouled.
- Repair:If there is valve damage or cam followers are out of place, make the mechanical repairs first, then perform the cleaning procedure to keep the concern from returning.
- Repair:With the engine at operating temperature, slowly induce a bottle of GM Upper Engine and Fuel Injection Cleaner with RPM held above idle so the engine does not stall (typically around 2,000 RPM).
- Repair:Turn the engine off and let the cleaner soak for 2.5 to 3 hours.
- Repair:To complete the repair, change the engine oil and filter.
- Caution:Inducing too much cleaner at too low an RPM, or stalling the engine with cleaner, may hydro-lock the engine and bend a connecting rod.
- Parts:Upper Engine and Fuel Injector Cleaner is P/N 88861803 (in Canada, P/N 88861804).
Open the manufacturer’s document (PDF) ↗ The points above were read from this document.
- Remedy
- This Preliminary Information communication provides information to the technician about vehicles that have a Malfunction Indicator Lamp on or engine misfire, rough idle, extended crank, or crank no start in some cases. Technician will need to perform published Service Information diagnostics. If technician finds carbon an upper engine and valve cleaning should be performed.
Manufacturer communication2003–2006 GMC YUKON DENALI XL ・ 2017-05-16
Engine Misfire and Rough Idle Diagnostic Communication
1Fault
2Finding the cause
Not stated
3Correction
Read the sentences of the record
- Remedy
- THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ABOUT VEHICLES THAT HAVE A MALFUNCTION INDICATOR LAMP ON OR ENGINE MISFIRE, ROUGH IDLE, EXTENDED CRANK, OR CRANK NO START IN SOME CASES. TECHNICIAN WILL NEED TO PERFORM PUBLISHED SERVICE INFORMATION DIAGNOSTICS. IF TECHNICIAN FINDS CARBON, AN UPPER ENGINE AND VALVE CLEANING SHOULD BE PERFORMED.
ENGINE AND ENGINE COOLING3
Owner complaint2002 GMC YUKON XL ・ 2008-10-15
Engine stalls while driving and at startup; fails to restart immediately
1Fault
2Finding the cause
3Correction
Not stated
Read the sentences of the record
- Fault
- ON SIX SEPARATE OCCASIONS, WHILE DRIVING AT ANY SPEED, THE VEHICLE COMPLETELY SHUT OFF AND WOULD NOT RESTART IMMEDIATELY. (2 more)
- Cause
- NHTSA CAMPAIGN ID NUMBER 07V521000 (ENGINE AND ENGINE COOLING) IS IDENTICAL TO THE FAILURE THE CONTACT IS EXPERIENCING.
Owner complaint2002 GMC YUKON XL ・ 2008-01-10
2002 GMC Yukon XL would not start and stalled intermittently while driving
1Fault
2Finding the cause
Not stated
3Correction
Read the sentences of the record
- Fault
- THE CONTACT STATED THAT THE VEHICLE WOULD NOT START. (4 more)
- Remedy
- *LJ THE CONSUMER STATED THE CRANKSHAFT POSITION SENSOR WAS REPLACED.
Manufacturer communication2002–2004 GMC YUKON XL ・ 2004-08-13
Flexible Fuel Vehicle Starting, Stalling, Power Loss and Performance Issues
1Fault
2Finding the cause
Not stated
3Correction
Read the sentences of the record
- Remedy
- VEHICLE WITH FLEXIBLE FUEL WILL NOT START, STALLS AND WILL NOT RESTART, LOSS OF POWER, POOR PERFORMANCE. *TT POOR PERFORMANCE AND/OR FUEL GAUGE READS INACCURATE/INCORRECT. *TT
ELECTRICAL SYSTEM2
Owner complaint2004 GMC YUKON XL ・ 2014-03-31
Vehicle will not restart after short stops, takes 10 minutes to 4 hours
1Fault
2Finding the cause
3Correction
Not stated
Read the sentences of the record
- Fault
- WHEN I START THE VEHICLE AND GO TO THE CORNER STORE TURNING THE VEHICLE OFF, COME OUT OF STORE TO RESTART VEHICLE IT WILL NOT START IT MAY TAKE ME 10 MINUTES TO 4 HOURS TO GET THE VEHICLE STARTED AGAIN.
- Cause
- AT THIS TIME NOT SURE IF IT IS IGNITION SWITCH OR PASS LOCK I KNOW BOTH PARTS SHOULD BE COVERED BECAUSE IT IS A DEFAULT FROM THE MANUFACTURER. *TR
- Consequence
- MEANING I HAVE BEEN STRANDED AT GROCERY STORES, WORK, SCHOOL FUNCTIONS.
Owner complaint2004 GMC YUKON DENALI XL ・ 2015-07-08
Multiple electrical issues including instrument cluster and stall condition
1Fault
2Finding the cause
3Correction
Not stated
Read the sentences of the record
- Fault
- ELECTRICAL CLUSTER ALSO GOING BAD AND INSTRUMENTS NOT WORKING, AIR CONDITIONING ELECTRICAL PROBLEM , WILL BLOW COLD OUT OF ALL BUT TWO VENTS, WHERE IT BLOWS 90 DEGREES. (1 more)
- Inspection
- DEALER SAID NO ERROR CODES TEST DROVE FOR A WEEK TO GET TO REPRODUCE STALL DRIVING, RETURNED TO ME SAYING CAN'T DIAGNOSE.
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