Tsb's Needed

booster · May 23, 2007

Can anyone provide a copy of these TSB's for me. I've already tried to search for them.

05-03-07-009A

03-08-61-002H

06-01-38-002

Thanks,

Jeff

ryank1 · May 24, 2007

Subject: Info - Wheel Alignment Specifications, Requirements and Recommendations for GM Vehicles #05-03-07-009A - (09/28/2006)

Models: 2007 and Prior GM Passenger Cars and Light Duty Trucks (Including Saturn Models)

2003-2007 HUMMER H2

2006-2007 HUMMER H3

2005-2007 Saab 9-7X

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This bulletin is being revised to include information regarding wheel alignment specifications. Please discard Corporate Bulletin Number 05-03-07-009 (Section 03 - Suspension).

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The purpose of this bulletin is to provide retail and wholesale personnel with General Motors’ specifications, requirements and recommendations for wheel alignment equipment and alignment procedures.

Wheel Alignment Specifications

Technicians must refer to SI for the correct wheel alignment specifications for each vehicle. SI is the only source of GM wheel alignment specifications that is up-to-date throughout the year.

The wheel alignment specifications loaded in any wheel alignment machine by the equipment manufacturer may be incorrect and/or outdated, even if the dealership subscribes to the manufacturer's update service. GM sends certain vendors a "one-time" CD with wheel alignment specifications for the new model year in early summer. Therefore, any changes to wheel alignment specifications after this CD is distributed may not be present in dealership wheel alignment machines.

Using incorrect and/or outdated specifications may result in unnecessary adjustments, irregular and/or premature tire wear and repeat customer concerns.

Conditions Possibly Requiring a Wheel Alignment

• Lead/pull defined as "at a constant highway speed on a typical straight road, the amount of effort required at the steering wheel to maintain the vehicle’s straight path."

• Steering wheel off-center (clockwise or counterclockwise)

• Unusual tire wear

• Other repairs that affect wheel alignment

Alignment Equipment

Alignments must be performed with a quality alignment machine that will give accurate results when performing alignment checks. "External Reference" (image-based camera technology) is preferred.

Requirements

• Computerized four wheel alignment system

• Computer capable of printing before and after alignment reports

• Computer capable of time and date stamp printout

• Racking system must have jacking capability

• Racking system must be capable of level to 1.6 mm (1/16 in)

• Appropriate wheel stops and safety certification

• Built-in turn plates and slip plates

• Wheel clamps capable of attaching to 20" or larger wheels

• Racking capable of accepting any GM passenger car or light duty truck

• Operator properly trained and ASE-certified (U.S. only) in wheel alignment

Recommendations

Racking should have front and rear jacking capability.

Equipment Maintenance and Calibration

Alignment machines must be regularly calibrated in order to give correct information. Most manufacturers recommend the following:

• Alignment machines with "internal reference" sensors should be checked (and calibrated, if necessary) every six months.

• Alignment machines with "external reference" (image-based camera technology) should be checked (and calibrated, if necessary) once a year.

• Racks must be kept level to within 1.6 mm (1/16 in).

• If any instrument that is part of the alignment machine is dropped or damaged in some way, check the calibration immediately.

Check with the manufacturer of your specific equipment for their recommended service/calibration schedule.

Warranty Claim Documentation

Important: Failure to have proper documentation of the repair order may result in denial or chargeback of the warranty claim.

In order to properly document a warranty claim for alignment, the following must be completed:

• Details of the customer’s concern or complaint are to be noted at the time of repair order write-up by recording the description of the customer's problem.

• The technician’s description of the cause of the concern and the repairs performed must be written on all copies of the repair order.

• "Before" and "After" alignment settings are to be recorded on the repair order. An alignment machine printout of "Before" AND "After" settings with date/time stamp is to be attached to the repair order by dealers who have printout capable equipment.

• Documentation of alignment machine calibration within the last 12 months must be available for AVM (in Canada, DSM, for Saturn, DSSM) review upon request.

• Prior wholesale approval required for vehicles under 800 km (500 mi) or over 12,000 km (7,500 mi) (will now apply to Saturn retailers also). Refer to the GM Service Policies and Procedures Manual for complete warranty policy information.

Alignment Process

When performing wheel alignment measurement and/or adjustment, the following steps should be taken:

Preliminary Steps

Verify that the vehicle has a full tank of fuel (compensate as necessary).

Inspect the wheels and the tires for damage.

Inspect the tires for the proper inflation and irregular tire wear.

Inspect the wheel bearings for excessive play.

Inspect all suspension and steering parts for looseness, wear, or damage.

Inspect the steering wheel for excessive drag or poor return due to stiff or rusted linkage or suspension components.

Inspect the vehicle trim height.

Compensate for frame angle on targeted vehicles (refer to Wheel Alignment Specifications in SI).

Satisfactory vehicle operation may occur over a wide range of alignment angles. However, if the wheel alignment angles are not within the range of specifications, adjust the wheel alignment to the specifications. Refer to Wheel Alignment Specifications in SI. Give consideration to excess loads, such as tool boxes, sample cases, etc. Follow the alignment equipment manufacturer's instructions.

Measure/Adjust

Notice: Prior to making any adjustments to wheel alignment on a vehicle, technicians must verify that the wheel alignment specifications loaded into the wheel alignment machine are up-to-date by comparing these to the wheel alignment specifications for the appropriate model and model year in SI. Using incorrect and/or outdated specifications may result in unnecessary adjustments, irregular and/or premature tire wear and repeat customer concerns.

Important: When performing adjustments to vehicles requiring a 4-wheel alignment, set the rear wheel alignment angles first in order to obtain proper front wheel alignment angles.

Perform the following steps in order to measure the front and rear alignment angles:

Install the alignment equipment according to the manufacturer's instructions.

Jounce the front and the rear bumpers 3 times prior to checking the wheel alignment.

Measure the alignment angles and record the readings.

Adjust alignment angles to vehicle specification, if necessary. Refer to Wheel Alignment Specifications in SI.

Test drive the vehicle to ensure proper repair.

Subject: Snap/Popping Type Noise Coming from Front of Vehicle (Remove Bolt-In Front Crossmember and Add Washers) #03-08-61-002H - (12/08/2006)

Models: 2003-2006 Cadillac Escalade

2003-2006 Chevrolet Avalanche, Suburban, Tahoe

2004-2006 Chevrolet Silverado

2003-2006 GMC Yukon, Yukon XL

2004-2006 GMC Sierra

2003-2006 HUMMER H2

1500 Series (½ Ton) and 2500 Series (¾ Ton) with Two-Wheel Drive

Attention: This bulletin only applies to 1500/2500 Series 2WD and HUMMER H2 vehicles with recirculating ball type steering.

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This bulletin is being revised to add the HUMMER H2 model. Please discard Corporate Bulletin Number 03-08-61-002G (Section 08 -- Body and Accessories).

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Condition

Some customers may comment on a snap or popping-type noise coming from the front of the vehicle. This condition is most apparent during hard left or right turns at low speeds. Going over bumps while turning may also aid in producing this noise.

Correction

Remove the bolt-in front crossmember and add washers using the procedure listed below.

Important: DO NOT slot the mounting holes on the crossmember as stated in previous bulletins. Slotting the holes has been found to be less effective and, in some cases, causes the noise condition to be more prevalent.

Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in SI.

Remove the mounting nuts, bolts and the front crossmember from the vehicle.

Clean all the undercoating off the crossmember in the area of the mounting holes.

Reinstall the crossmember with the bolts and nuts. On the driver and passenger side, add washer P/N 11509592, or equivalent hardened washer (see dimensions below), at each bolt head and nut location.

Tighten

Tighten the bolts to 120 N·m (89 lb ft).

Apply an even coat of Anti-Corrosion Coating, P/N 12346501 (in Canada, 10952414), or equivalent, to the crossmember where removed. Overlap the original coating in order to provide an effective corrosion protection.

Inside Diameter

Outside Diameter

Thickness

14 mm (0.551 in)

35 mm (1.38 in)

3 mm (0.118 in)

Parts Information

Part Number

Description

Qty

11509592

Washer

8

Warranty Information

For vehicles repaired under warranty, use:

Labor Operation

Description

Labor Time

E1730

Crossmember, Front Suspension - Replace

Use Published Labor Operation Time

Subject: A/C System Refrigerant Hiss Noise (Replace Liquid Line) #06-01-38-002 - (03/17/2006)

Models: 2003-2006 Cadillac Escalade Models

2003-2006 Chevrolet Avalanche, Silverado, Suburban, Tahoe

2003-2006 GMC Sierra, Yukon Models

with 4.3L, 4.8L, 5.3L, 6.0L or 8.1L Engine (VINs X, V, T, Z, B, U, N, G -- RPOs LU3, LR4, LM7, L59, L33, LQ4, LQ9, L18) and Air Conditioning (RPOs CJ2, CJ3 and C69)

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Condition

Some customers may comment on a hiss noise coming from the instrument panel. The noise has also been described as sounding like a gurgle or water spattering. The noise occurs when the Air Conditioning (A/C) compressor engages and may continue for 5 to 10 seconds after the compressor disengages or the A/C system is turned off. The noise is most noticeable when the vehicle is at idle or is being driven at low speeds. The noise is undetectable after about one minute when the A/C system has been turned off or the vehicle has been turned off.

Cause

This condition may be caused by the expanding refrigerant as it passes through the orifice tube.

Correction

Technicians are to verify that the customer concern is only as described in the condition statement above. If the customer concern is a refrigerant hiss noise, then technicians are to perform the normal diagnostic procedures for an A/C system concern. The ACR2000 should be used to check the A/C system performance, charge level and discharge temperatures. This will eliminate the possibility that another condition is contributing to this customer concern. If the A/C system is performing properly, and all other possible sources of this noise are eliminated, then technicians are to replace the A/C liquid line. Use the proper part number as described in the parts information box below. Verify that the noise has been eliminated and that the A/C system operates normally.

Parts Information

Important: The trucks affected by this bulletin that have rear air conditioning were built with two different length condensers. The short condenser is 762 mm (30.0 in) long. The long condenser is 914 mm (36.0 in) long. Be sure to measure the length of the condenser before ordering one of the tubes listed below for vehicles with rear air conditioning.

Part Number

Description

Qty

15785055

Tube ASM-A/C Evaporator (vehicles with C69 and a long condenser)

1

15785056

Tube ASM-A/C Evaporator (all vehicles with front only A/C)

1

15785057

Tube ASM-A/C Evaporator (vehicles with C69 and a short condenser)

1

Warranty Information

For vehicles repaired under warranty, use:

Labor Operation

Description

Labor Time

D3083

Hoses And/Or Lines, Refrigerant-Condenser To Evaporator (Liquid Line) - Replace

Use published labor operation time

Add

To Recover and Recharge A/C System

Use published labor operation time

booster · August 5, 2007

Can anyone provide a copy of this TSB:

02-03-07-002A

Thanks,

Jeff

ChevyTech007 · August 6, 2007

Subject: Info - Revised Front Caster and Camber Adjustment Procedure #02-03-07-002A - (03/24/2005)

Models: 1999-2000 Cadillac Escalade

2002-2005 Cadillac Escalade, Escalade EXT

1999-2005 Chevrolet Express, Silverado, Suburban, Tahoe

2002-2005 Chevrolet Avalanche

1999 GMC Suburban

1999-2005 GMC Savana, Sierra, Yukon, Yukon XL, Yukon XL Denali

2003-2005 HUMMER H2

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This bulletin is being revised to add model years and clarify the information. Please discard Corporate Bulletin Number 02-03-07-002 (Section 03 - Suspension).

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When performing a wheel alignment on any of the above vehicles, please refer to the Front Caster and Camber Adjustment Procedure in SI before contacting the GM Technical Assistance Center (TAC) with issues concerning adjustments, caster out-of-spec, etc.