Ticking or Knocking Type Noise Coming From Engine or Transmission Area

Download Subject: L36, L67, L26, L32, LA1, LX9, MN7, M15 Ticking or Knocking Type Noise Coming From Engine or Transmission Area (Replace Flexplate and Torque Converter) Models: 2005 Buick Park Avenue 2005-2006 Buick Allure (Canada Only), LaCrosse, LeSabre, Rendezvous, Terraza 2005 Chevrolet Impala, Monte Carlo, Venture 2005-2006 Chevrolet Malibu, Malibu Maxx, Uplander 2005 Pontiac Aztek, Bonneville 2005-2006 Pontiac Grand Prix, G6 GTP, Montana SV6 2006 Saturn Relay AWD with 3800 3.8L Series III V6 Engine (VINs K, 1, 2, 4, – RPOs L36, L67, L26, L32) or 3500 3.5L V6 Engine (VINs L, 8 RPO LX9) or 3400 3.4L V6 Engine (VIN E – RPO LA1) and Hydra- Matic(R) 4T65-E Transmission (RPOs MN7, M15) Supercede: This bulletin is being revised to update the pictures for better clarification. Please discard Corporate Bulletin Number 06-06-01-014B (Section 06 – Engine/Propulsion System). Condition Some customers may comment on a ticking or knocking type noise coming from the engine or transmission area.… Read More

1997 Buick Century COLD ENGINE TICK OR RATTLE AFTER START-UP

Download 1997 Buick Century Limited 3.1/3.4L ENG TICK OR RATTLE AFTER COLD START UP COLD ENGINE TICK OR RATTLE AFTER START-UP (REPLACE PISTON/PIN ASSEMBLY) Model(s): 1994-95 Buick Regal 1994-97 Buick Skylark 1994-98 Buick Century 1994-95 Chevrolet Beretta Corsica, Lumina, Monte Carlo 1996-98 Chevrolet Venture 1997-98 Chevrolet Malibu 1993-97 Oldsmobile Cutlass Supreme 1994-96 Oldsmobile Cutlass Ciera 1994-97 Oldsmobile Achieva 1996-98 Oldsmobile Silhouette 1997-98 Oldsmobile Cutlass 1994-98 Pontiac Grand Am, Grand Prix 1996-98 Pontiac Trans Sport with 3100, 3400 V6 Engine (VINs M, E – RPOs L82, LA1) CONDITION Some customers may comment on a ticking type noise that begins shortly after cold engine start-up and gradually diminishes as the engine warms up. In most cases, the noise is gone after five (5) minutes. In severe cases, the noise may not disappear when lhe engine is hot. CAUSE Under normal design tolerances when the piston pin bore is produced at the maximum tolerance and the piston pin is produced at the minimum tolerance (min-max tolerance) trace noise levels can occur.… 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

2005 Chevy Truck Silverado 1500 Blower Motor Resistor Replacement

Download 2005 Chevy Truck Silverado 1500 2WD V8-5.3L VIN T Vehicle Level Heating and Air Conditioning Blower Motor Resistor Service and Repair Blower Motor Resistor Replacement. BLOWER MOTOR RESISTOR REPLACEMENT REMOVAL PROCEDURE 1. If equipped, remove the IP sound insulator. 2. Disconnect the electrical connection from the blower motor . 3. Disconnect the electrical connection from the blower motor resistor. 4. Remove the blower motor resistor retaining screws. 5. Remove the blower motor resistor. INSTALLATION PROCEDURE 1. Install the blower motor resistor. NOTE: Refer to Fastener Notice in Service Precautions. 2. Install the blower motor resistor retaining screws. Tighten Tighten the screws to 1.6 N.m (14 lb in) 3. Connect the electrical connection to the blower motor resistor. 4. Connect the electrical connection to the blower motor . 5. If equipped, install the IP sound insulator.… Read More

2003 Chevy Truck TrailBlazer Cooling System-Electro-Viscous Fan Clutch Operation

Download 2003 Chevy Truck TrailBlazer 2WD L6-4.2L VIN S Cooling System – Electro-Viscous Fan Clutch Operation. Subject: Operating Characteristics of the Electro-Viscous (EV) Fan Clutch and Diagnostic Tips for Cooling Fan Noise, Delayed Transmission Shifts and/or Engine Revving Too High Models: 2004-2006 Buick Rainier 2002-2006 Chevrolet TrailBlazer, TrailBlazer EXT 2006 Chevrolet TrailBlazer SS 2002-2006 GMC Envoy, Envoy XL 2004-2005 GMC Envoy XUV 2002-2004 Oldsmobile Bravada 2005-2006 Saab 9-7X with 4.2L I-6, 5.3L V-8 or 6.0L V-8 Engine (VINs S, P, M, H – RPOs LL8, LM4, LH6, LS2) Date/VIN Breakpoints for Vehicles with New EV Fan Clutch. Vehicles built after and including the Date or VIN Breakpoints listed in the table shown are equipped with the new electro-viscous (EV) fan clutch . Vehicles of any model year listed in “Models Affected” with labor code J3390 (claimed after June 8, 2005) with P/N 15293048 in Claim History may also be equipped with this new EV fan clutch .… Read More

2001 Chevrolet Chevy K Silverado Crankshaft Position Sensor Engine Stall

Download Models: 2001 Chevrolet Silverado, Suburban 2001 GMC Sierra, Yukon XL Equipped with 8.1L V8 (RPO L18 – VIN G) Engine. Condition General Motors has decided that a defect, which relates to motor vehicle safety, exists in certain 2001 model year Chevrolet Silverado, Suburban; GMC Sierra and Yukon XL model vehicles, equipped with an 8.1L V8 (RPO L18 – VIN G) engine. Some of these vehicles have a condition in which the crankshaft position sensor can fail intermittently or permanently. If the sensor fails intermittently, the Service Engine Soon (SES) light may illuminate and the vehicle may run rough. In addition, the engine may stall, and if so, may re-start immediately or after a cool down period. If the sensor fails permanently, the engine will quit running and will not re-start. Correction Dealers are to replace the crankshaft position sensor. Vehicles Involved Involved are certain 2001 model year Chevrolet Silverado, Suburban; GMC Sierra and Yukon XL model vehicles, equipped with an 8.1L V8 (RPO L18 – VIN G) engine and built within these VIN breakpoints: Subject: 06083 — Crankshaft Position Sensor Engine Stall Models: 2001 Chevrolet Silverado, Suburban 2001 GMC Sierra, Yukon XL Equipped with 8.1L V8 (RPO L18 – VIN G) Engine Year Division Model From Through 2001 Chevrolet Silverado iE100004 1E200999 1F100006 1F116767 1M100002 1M103668 1Z100010 1Z100042 2001 Chevrolet Suburban 1G100001 1G174359 1J100010 1J100058 2001 GMC Sierra 1E100003 1E2012022 1F100004 1F113912 1M100023 1M103669 1Z100013 1Z100026.… Read More

2001 Chevrolet Chevy K Silverado Transmission Stuck in Second or Third Gear

Download Malfunction Indicator Lamp (MIL) On, Transmission Stuck in Second or Third Gear, Instrument Cluster Inoperative (Verify and Repair Source of Voltage Loss In Transmission Solenoid Power Supply Circuit ) Models: 2006 and Prior GM Passenger Cars and Light Duty Trucks 2005-2006 HUMMER H2 2006 HUMMER H3 2005-2006 Saab 9-7X with 4L60-E, 4L65-E, 4L80-E or 4L85-E Automatic Transmission (RPOs M30, M32, M33, MT1, MN8) Condition Some customers may comment on one or more of the following conditions: Upon investigation, one or all of the diagnostic trouble codes (DTCs) P0740, P0753, P0758, P0785, P0787, P0973, P0976, P1860, P2761, P2764 and P2769 may be set depending on the vehicle. Cause The most likely cause of this condition may be a loss of voltage to the transmission solenoid power supply circuit. This condition may also be the result of an incorrect installation of an aftermarket electronic device such as a remote starter or alarm system.… Read More

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

LM7, L59 or L33 Engines with Cold Start Rough or Incorrect Idle, Misfire, Malfunction Indicator Lamp (MIL) or Flashing Requiring O2 Sensor Replacement (Reprogram PCM)

Download Models: 2004-2005 Cadillac Escalade 2004-2005 Chevrolet Avalanche, Silverado 1500, Suburban, Tahoe 2005 Chevrolet Silverado Hybrid (HP2) 2004-2005 GMC Sierra 1500, Yukon, Yukon XL 2005 GMC Sierra Hybrid (PH2) with Vortec 5300 5.3L V-8 Engine (VINs T, Z, B — RPOs LM7, L59, L33) Condition Some customers may comment on a Malfunction Indicator Lamp (MIL) On or that the MIL is flashing. An actual engine misfire may or may not be felt along with an incorrect idle speed. Typically this occurs during cold winter months, on cold engine starts. Some vehicles may have been previously serviced for the same condition. Technicians may also find the following DTCs stored with the Tech 2® P0131, P0133, P0134, P0137, P0138, P0140, P0151, P0153, P0154, P0157, P1133, which may be in conjunction with P0171, P0174, P0300 and P1138. Cause Water shock occurs when water droplets are present in the exhaust. The water in the exhaust contacts the sensor element inside the HO2 sensor, causing the HO2 sensor element to crack.… Read More

2009 Ford Escape INTERMITTENT CYLINDER HEAD CAMSHAFT KNOCK/THUMP NOISE

Download FORD: MERCURY: 2009 Escape 2009 Mariner This article supersedes TSB 09-11-6 to update the b. Isolate noise to LH – Listen to the cylinders Service Procedure and Part List. 4 and 6 valve cover fasteners (number 6 is by the coolant pump). There will be a ISSUE significant difference in transmitted noise Some 2009 Escape and Mariner vehicles, equipped between the cylinder 4 and 6 fasteners with 3.0L engine, may exhibit an intermittent when noise is present. Noise from LH – go knocking or thumping type noise from the cylinder to Step 4. head. After engine temperature reaches 210-220 °F NOTE (99-104 °C), the noise is typically heard from the THE RH AND LH NOISES HAVE DIFFERENT rear of the engine as the vehicle comes to a stop. CAUSES. FOLLOW ALL STEPS CAREFULLY FOR An example would be coming to a stop at the end PROPER DIAGNOSIS AND REPAIR. of a highway exit ramp.… Read More