Clunk, Bump or Squawk when Vehicle Comes to Complete Stop

Download 1999-2000 Cadillac Escalade (Old Style) 2002-2004 Cadillac Escalade, Escalade EXT 2003-2004 Cadillac Escalade ESV 1996-1999 Chevrolet 1500 Series Extended Cab Short Box Pickup (Old Style) 1996-1999 Chevrolet 1500 Series Regular Cab Pickup and Utility Models (Old Style) 1999-2002 Chevrolet Silverado Extended Cab Short Box (New Style) 1999-2004 Chevrolet Silverado 1500 Series Regular Cab (New Style) 2000-2004 Chevrolet 1500 Series Avalanche, Suburban and Tahoe 2001-2004 Chevrolet Silverado 2500/3500 Series Regular Cab with Long Bed or Extended Cab (New Style) 2001-2004 Chevrolet Silverado 2500 Series Crew Cab, Short Box (New Style) 1996-1999 GMC 1500 Series Extended Cab Short Box Pickup (Old Style) 1996-1999 GMC 1500 Series Regular Cab Pickup and Utility Models (Old Style) 1999-2002 GMC Sierra Extended Cab Short Box (New Style) 1999-2004 GMC Sierra 1500 Series Regular Cab (New Style) 2000-2004 GMC 1500 Series Yukon, Yukon XL 2001-2004 GMC Sierra 2500/3500 Series Regular Cab with Long Bed or Extended Cab (New Style) 2001-2004 GMC Sierra 2500 Series Crew Cab, Short Box (New Style) 2003-2005 HUMMER H2 with Four Wheel Drive (4WD) or All Wheel Drive (AWD) and One-Piece Propeller Shaft ONLY.… Read More

2003 HONDA PILOT DTC Troubleshooting

Download P0505 (14) DTC P0505: Idle Control System Malfunction NOTE: If DTC P1519 is stored at same time as DTC P0505, troubleshoot DTC P1519 first, then recheck for DTC P0505. 1. Start the engine. Hold the engine at 3,000 rpm with no load (in Park or neutral) until the radiator fan comes on. 2. Check the engine speed at idle with no-load conditions: headlights, blower fan, rear window defogger, radiator fan, and air conditioner off. Is the engine running at 730+/-50 rpm? 3. Disconnect the idle air control (IAC) valve 3P connector. Does the engine speed increase or fluctuate? 4. Turn the ignition switch OFF. 5. Remove the intake air duct from the throttle body. 6. Start the engine and let it idle. 7. Put your finger on the lower port (A) in the throttle body. Does the engine speed drop below 780 rpm? YES – Intermittent failure, system is OK at this time.?… Read More

1999-2003 FORD SUPER DUTY F SERIES HIGH PRESSURE OIL PUMP LEAK

Download FORD: 1998-2003 E SERIES 1999-2003 SUPER DUTY F SERIES 2000-2003 EXCURSION, F-650, F-750 This article supersedes TSB 03-21-50 to update the WARNING service procedure and illustration. DO NOT REMOVE OR ATTEMPT TO REPAIR A LEAK AT THE PLUG PICTURED IN LOWER LEFT ISSUE CORNER OF FIGURE 1, OR DAMAGE TO THE Some 1998-2003 E-Series, 1999-2003 Super Duty, PUMP WILL RESULT. 2000-2003 Excursion, and 2000-2003 F650/750 1998-2003 E-SERIES HIGH PRESSURE OIL vehicles equipped with a 7.3L Diesel engine may PUMP ACCESS PROCEDURE (DISASSEMBLY) exhibit an oil leak at the high pressure oil pump outlet fittings and/or end plug (see Figure 1). The 1. Remove the Intake Air Resonator. For leak may appear to be a rear main crankshaft seal, additional information, refer to Section 303-12 in oil pan gasket, or other engine oil leak due to the the appropriate Workshop Manual. drain hole machined in the crankcase valley which allows any oil in the valley to run down the back of 2.… Read More

2005 Chevrolet Chevy K Silverado Panel Cluster Gauge Needle Function

Download 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) Condition 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.… Read More

2003 Chevrolet Tahoe Test Details

Download  2002 Chevrolet Silverado 1500 4.8L, GAS, Vin V, Eng Cfg V8, USA/Canada 2003 Chevrolet Tahoe 4.8L, GAS, Vin V 2003 Chevrolet Silverado 1500 4.8L, GAS, Vin V, Eng Cfg V8 2003 Chevrolet Tahoe 5.3L, FLEX, Vin Z Customer Concern: The engine runs, but lacks power when driving. Has codes P0101 and P0300. Scanner shows misfires all on the same side of the engine. Tests/Procedures: 1. Check the catalytic converter, on the “suspect” bank of the engine, for a restricted (plugged) exhaust system to that side of the engine. 2. Disconnect both front O2 sensors, re-set the fuel trims and see if the problem goes away. 3. If gone with the O2 sensors disconnected, then swap the sensors side to side and see if the problem follows the O2 sensor. Potential Causes: Plugged Exhaust System Oxygen Sensor Diagnostic Codes: P0101, P0300 Author: Christopher Pittman Average Reported Mileage: 92479 Confirmed Fix Summary Confirmed Fix 9 – Catalytic Converter 1 – Exhaust System 1 – Intake Manifold Gasket(s) 1 – Right Catalytic Converter Confirmed Fix Details Tech Reported Fix Details Confirmed Fix Phil Zeuner March 04, 2009 2003 Chevrolet Tahoe, 5.3L, FLEX, Vin Z Replaced Catalytic Converter – Replaced cat.… Read More

2001-2002 Honda Odyssey Idle Fluctuation and/or the MIL Is On With DTC P1129

Download : 2001-02 Odyssey – ALL 2003 Odyssey – From VIN 5FNRL1…3B000001 thru 5FNRL1…3B159953 2003 Odyssey – From VIN 2HKRL1…3H500001 thru 2HKRL1…3H514354 2003 Pilot – From VIN 2HKYF1…3H500001 thru 2HKYF1…3H520648 Idle Fluctuation and/or the MIL Is On With DTC P1129 and/or P0505 (Supersedes 04-007, Idle Fluctuation With DTC P1129 , dated February 6, 2004, to update the information marked by the black bars) SYMPTOM The idle fluctuates, and/or the MIL is on with DTC P1129 (high manifold absolute pressure [MAP] sensor signal) and/or P0505 (faulty IAC valve). PROBABLE CAUSE The idle air control (IAC) valve sticks open, the power steering pressure switch wire is broken, or both. CORRECTIVE ACTION Replace the IAC valve, repair the power steering pressure switch wire, or do both. DIAGNOSIS 1. Start the engine, and let it idle until it warms up. Does the idle fluctuate, or is there a customer complaint of an intermittent idle fluctuation?… Read More

2003-2005 Ford Excursion DIESEL CALIBRATION UPDATE

Download 6.0L DIESEL CALIBRATION UPDATE—VARIOUS ISSUES 2003-2007 F-Super Duty FORD: 2004-2010 E-Series 2003-2005 Excursion This article supersedes TSB 9-7-11 to update the The PCM and FICM calibration update contains model years covered and Integrated Diagnostic improvement actions to address the following System (IDS) calibration level. symptoms: 2005 F-Super Duty 6.0L: ISSUE Some 2003-2007 F-Super Duty vehicles, 2003-2005 •False DTC P0470 – Exhaust pressure sensor A Excursions and 2004-2010 E-Series vehicles, circuit fault due to a freezing condition. equipped with a 6.0L diesel engine may exhibit hard •False DTC P0404 – Exhaust gas recirculation start, no start, white smoke, lack of power, running (EGR) performance due to a stuck turbocharger rough condition after cold engine start up, or condition. diagnostic trouble codes (DTCs) P0404, P0470, •Cooling loss protection – Revised engine P0611, P1260 and/or P1378 issues. Refer to the protection strategy when an engine Calibration Content for information detailing specific over-temperature condition is present.… Read More

2003 Ford Truck Expedition Suspension – Air Suspension Height Sensor Linkage Loose

Download FORD: 2003-2006 Expedition LINCOLN: 2003-2006 Navigator ISSUE Some 2003-2006 Expedition and Navigator vehicles equipped with an air suspension may exhibit an air suspension height sensor linkage arm disengaging from the suspension ball stud or height sensor rotating arm. This concern typically occurs with the rear sensor (Figure 1) but may occur with the front sensors as well. If this occurs, the symptom will typically be the vehicle leaning to one side, the vehicle sitting too low/high, a harsh ride, and/or an inoperative air suspension. In addition, this concern may result in diagnostic trouble code (DTC) C1725 (air suspension front pneumatic failure) or C1726 (air suspension rear pneumatic failure). ACTION When a linkage arm becomes disengaged, do not re-attach the arm and do not replace the sensor unless broken. Instead, install a revised linkage arm on all three (3) sensor assemblies, even if they have not detached from the ball stud.… Read More

Service 4WD Light Illuminated, DTC C0374 Set (Inspect Wiring Harness to Transfer Case Speed Sensors, Replace Wiring Harness)

Download Models: 2004-2007 Buick Rainier 2003-2006 Chevrolet Avalanche, Suburban, Tahoe 2003-2007 Chevrolet Silverado Classic, TrailBlazer, TrailBlazer EXT 2003-2006 GMC Yukon, Yukon XL 2003-2007 GMC Envoy, Envoy XL, Sierra Classic 2003-2004 Oldsmobile Bravada 2005-2007 Saab 9-7X with Four Wheel Drive or All-Wheel Drive and Active All-Wheel Drive (RPO NP4) or Active Two-Speed (RPO NP8) Transfer Case. Condition Some customers may comment on intermittent illumination of the Service 4WD light. Upon investigation, the technician may find DTC C0374 set. The customer may also comment on intermittent erratic operation of the 4WD or AWD system after driving through rain/snow or simply going through a car wash. Cause The speed sensor signal may have become corrupted. Possible openings in the speed sensor wire insulation (twisted pairs) can allow water intrusion. Also, wire connections contaminated by water may result in short circuits and erroneous speed sensor readings. This most often occurs on the rear speed sensor circuit.… Read More

2003-2004 MDX Torque Converter Shudder or Vibration Between 35 and 40 MPH

Download SYMPTOM The vehicle shudders or vibrates between 35 and 40 mph. PROBABLE CAUSE The torque converter is faulty. CORRECTIVE ACTION Replace the torque converter, or the torque converter and the transmission, and update the PCM with the HDS. NOTE: You must update the PCM to complete the repair. PARTS INFORMATION Torque Converter: P/N 26000-RDJ-315. DIAGNOSIS 1. To confirm the client’s complaint, test-drive the vehicle on a smooth road, preferably with a slight incline. Set the cruise control between 35 and 40 mph, and monitor the engine rpm using the vehicle’s tachometer, or use the HDS to take a snapshot of the engine rpm. 2. If the engine speed fluctuates several hundred rpm while maintaining a constant vehicle speed, disconnect the EGR valve and retest the vehicle. •If the fluctuation is gone, refer to the EGR troubleshooting in the service manual. •If the engine rpm still fluctuates, and the transmission does not have any other symptoms (shifting problems, slipping, transmission DTCs) go to step 3.… Read More