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2002-2005--Saturn--VUE AWD--4 Cylinders 2.2L MFI DOHC--32820201
Saturn - L300 - Workshop Manual - 2015 - 2019
Saturn - L200 - Workshop Manual - 1987 - 1987
2006-2007--Saturn--ION--4 Cylinders F 2.2L FI DOHC--33037502
2006-2007--Saturn--VUE AWD--6 Cylinders 4 3.5L MFI SOHC--33037901
2002-2005--Saturn--VUE 2WD--6 Cylinders B 3.0L MFI DOHC--32868002
2007--Saturn--Aura--6 Cylinders N 3.5L FI OHV--33114601
2006-2007--Saturn--VUE 2WD--4 Cylinders D 2.2L MFI DOHC--33110001
1991-1998--Saturn--SL2--4 Cylinders 7 1.9L MFI DOHC--31991101
Saturn - L100 - Parts Catalogue - 1988 - 1988
Saturn - Vue - Owners Manual - 2008 - 2009
Saturn - L300 - Workshop Manual - 1985 - 1989
2006-2008--Saturn--Sky--4 Cylinders B 2.4L MFI DOHC--33227601
2002-2005--Saturn--VUE 2WD--4 Cylinders D 2.2L MFI DOHC--32928801
Saturn - Ion - Owners Manual - 2004 - 2005
Saturn - Aura - Owners Manual - 2007 - 2008
Saturn - Vue - Owners Manual - 2005 - 2006
1991-1998--Saturn--SC1--4 Cylinders 9 1.9L TBI SOHC--31936101
1991-1998--Saturn--SW2--4 Cylinders 7 1.9L MFI DOHC--32397001
Saturn - Vue - Owners Manual - 2004 - 2004
Saturn - Vue - Owners Manual - 2007 - 2008
2007--Saturn--Aura--6 Cylinders 7 3.6L FI DOHC--33114602
Saturn - L200 - Owners Manual - 2005 - 2005
1991-1998--Saturn--SL1--4 Cylinders 8 1.9L MFI SOHC--31991001
Saturn - Aura - Owners Manual - 2008 - 2009
Saturn - Aura - Owners Manual - 2008 - 2008
Saturn - Ion - Owners Manual - 2005 - 2006
2006-2007--Saturn--ION--4 Cylinders P 2.0L MFI SC DOHC--33037501
Saturn - L300 - Workshop Manual - 1985 - 1986
Saturn - Vue - Owners Manual - 2009 - 2010
2006-2007--Saturn--VUE Hybrid 2WD--4 Cylinders Z 2.4L MFI Hybrid DOHC--33110201
Saturn - Ion - Owners Manual - 2007 - 2007
Saturn - Vue - Owners Manual - 2006 - 2007
Saturn - Aura - Owners Manual - 2009 - 2010
Saturn - Ion - Owners Manual - 2006 - 2006
1991-1998--Saturn--SL2--4 Cylinders 7 1.9L MFI DOHC--32145401
1991-1998--Saturn--SC1--4 Cylinders 9 1.9L TBI SOHC--31968601
2006-2008--Saturn--Sky--4 Cylinders B 2.4L MFI DOHC--33078201
1991-1998--Saturn--SL--4 Cylinders 8 1.9L MFI SOHC--32145201
1991-1998--Saturn--SL--4 Cylinders 7 1.9L MFI DOHC--31617102
1991-1998--Saturn--SC2--4 Cylinders 7 1.9L MFI DOHC--32348001
Saturn - L100 - Owners Manual - 2004 - 2005
1991-1998--Saturn--SL1--4 Cylinders 8 1.9L MFI SOHC--32145301
Saturn - L200 - Workshop Manual - 1986 - 1986 (2)
Saturn - Relay - Owners Manual - 2007 - 2007
Saturn - Relay - Owners Manual - 2005 - 2005
Saturn - Vue Hybrid - Owners Manual - 2007 - 2008
Saturn - Sky - Owners Manual - 2007 - 2008
Saturn - L100 - Parts Catalogue - 2010 - 2010
Saturn - Vue - Owners Manual - 2010 - 2010
Saturn - Vue Hybrid - Owners Manual - 2008 - 2008
Saturn - Vue Hybrid - Owners Manual - 2009 - 2009
1991-1998--Saturn--SW1--4 Cylinders 9 1.9L TBI SOHC--31968701
2006--Saturn--Relay 2WD--6 Cylinders L 3.5L FI OHV--32995402
Saturn - Relay - Owners Manual - 2006 - 2006
Saturn - L200 - Parts Catalogue - 1986 - 1986
Saturn - Aura Hybrid - Owners Manual - 2007 - 2008
Saturn - Astra - Owners Manual - 2009 - 2009
Saturn - Aura Hybrid - Owners Manual - 2008 - 2010
Saturn - Astra - Owners Manual - 2008 - 2008
Summary of Content
Printer Friendly Page 1 of 5 Print Close Window BRAKE JOB: GM Acadia / Buick / Outlook / Enclave The Lambda Platform is shared with the Chevrolet Traverse, Saturn Outlook, GMC Acadia and Buick Enclave. It is largely derived from the GM Epsilon platform, the same platform that makes the Chevrolet Malibu and Pontiac G6. These vehicles can be front- or all-wheel drive. All models have the same rear disc brake setup with the parking brake in the hat of the rotor. All Lambda platform vehicles incorporate Tire Pressure Monitoring (TPMS) ABS and Stabilitrak electronic stability control. Gene Markel 10/14/2009 Front Pad Removal Before replacing the pads, inspect the master cylinder to ensure that it has not been topped off before retracting the pistons into the caliper bores. The front brakes are a floating dual-piston caliper type, the pistons are phenolic. The caliper bridge bolts have a guide pin and bolt that attach the caliper to the bracket. Removing the bottom bolt allows the caliper to be pivoted out of the bracket. Using a special piston retractor designed to push evenly on the dual pistons is highly recommended. The pads are retained in the bracket http://www.brakeandfrontend.com/www/Controls/PrinterFriendly/PrinterFriendly.aspx 10/23/2009 Printer Friendly Page 2 of 5 with anti-rattle clips. To release the pad from the clip, there are tabs at the ends of pad that are depressed to release the pad. The pads have noise dampening material attached to the back of the pads. Front Pad Install Inspect the dust boots for damage and replace if necessary. Inspect the guide pins and replace and lubricate if necessary. The boot is to be seated in the grooves of the caliper bracket and guide pin. Install new anti-rattle clips and pads, rotate the caliper and align the flats on the guide pin to the mounting ear of the caliper. Torque the guide pin bolts to 64 Nm (30 ft/lbs). The caliper bracket bolts on this vehicle use high strength thread locker to hold it in place (it is the “red stuff”). Make sure to clean the old thread locker material off the threads with denatured alcohol before putting new thread locker on. The bolts should be tightened to a whopping 129 ft/lbs! Rear Pads Inspect the dust boots for damage and replace the caliper if necessary. Inspect the guide pins and replace and lubricate if necessary. The boot is to be seated in the grooves of the caliper bracket and guide pin. Install new anti-rattle clips and pads rotate the caliper and align the flats on the guide pin to the mounting ear of the caliper. Torque the guide pin bolts to 64 Nm (30 ft/lbs). Like in the front, the rear caliper brackets use thread locker. Make sure to clean threads. Then torque the bolts to 148 ft/lbs. Rotor and Hub Inspection Specifications: Front Brakes • New thickness: 29.0 mm (1.14”) • Min thickness: 27.5 mm (1.08”) http://www.brakeandfrontend.com/www/Controls/PrinterFriendly/PrinterFriendly.aspx 10/23/2009 Printer Friendly Page 3 of 5 • Max allowable assembled lateral runout: 0.06 mm (0.002”) • Max allowable scoring: 1.50 mm (0.059”) • Max allowable thickness variation 0.025 mm (0.001”) Rear Brakes • Min thickness: 18.4 mm (0.72”) • New thickness: 20 mm (0.79”) • Max allowable assembled lateral runout: 0.06 mm (0.002”) • Maximum allowable scoring: 1.50 mm (0.059”) • Max allowable thickness variation: 0.025 mm (0.001”) Rotor Lateral Runout Inspection Procedure The hub and rotor are matched with the rotor indexed to the hub and secured with a Torx setscrew. Three lugs should be used to ensure the rotor is secured to the hub. Attach the dial indicator to the steering knuckle and position the indicator at 90º to the rotor surface approximately 12.7 mm (0.50”) from the rotor. Replace any rotor that is worn or machined below this specification. If the rotor is within runout specification, new pads and anti-rattle clips can be installed. If the rotor is out of specification for lateral runout, a shim between the hub and rotor can correct the runout. Shim Installation Procedure GM has approved the shims from Brake Align for the correction of the runout for rotors machined on both on- and off-vehicle lathes. Mark the high spot on the rotor and the stud closest to the high spot. To check the bearing hub, remove the caliper bracket and rotor. Remove the caliper bracket. It is secured to the knuckle with 19 mm bolts with thread lock adhesive. When replacing the bracket, clean the bolt and apply thread lock adhesive to the center section of the threads. Torque the front caliper bracket mounting bolts to 175 Nm (129 ft/lbs). The torque the rear to caliper bracket mounting bolts to 200 Nm (148 ft/lbs). Remove the Torx retaining screw and rotor. The hub is checked at the outer machined surface with the indicator at 90º to the rotor’s surface. Mark the hub for run out and the stud closest to the high spot. The machined surfaces of the hub and rotor should be cleaned before the shim is installed with the V-notch aligned http://www.brakeandfrontend.com/www/Controls/PrinterFriendly/PrinterFriendly.aspx 10/23/2009 Printer Friendly Page 4 of 5 with “high spot” on the vehicle hub. Reinstall the rotor and torque the retaining screw to 12 Nm (106 in/lbs). Parking Brake The parking brake is located in the hat section of the rear rotor. It is applied mechanically by a cable actuated cam and lever located in the bottom of the backing plate. The shoes are attached to the backing plate with a pin and leaf spring. The shoes are held against the cam and lever with a spring. A spring is also used to hold the shoes against the adjusting screw. The shoes are adjusted by rotating the star wheel on an adjusting screw located at the top of the backing plate. There is an adjusting slot located in the hat section of the rotor. It will require an old fashioned adjusting spoon to reach the star wheel. The method of adjustment is to turn the rotor and adjust the star wheel until the shoes drag on the drum. Then back off the adjusting star until the rotor turns free. The rotor should be secured with the retaining screw and three lug nuts when the parking brake shoes are adjusted. Bleeding Like most modern brake systems with ABS, the system has an automated bleed procedure that requires a scan tool. An automated bleed is required if a hydraulic component like the modulator unit is replaced. Even if you are performing a gravity, pressure or manual bleed, it is a good idea to run an automated bleed procedure as a way to ensure the there is not any air trapped in the brake modulator or proportioning valve assembly. The bleeding sequence is left front, left rear, right front and right rear. If pressure bleeding, GM recommends between 25-30 psi. Service Hints What if the booster does not feel right? If the brake booster activates excessively or if excessive effort of the brake pedal is consistently required, Hydraulic Brake Booster “HBB” calibration may be needed. To do this, it will require a scan tool with the right software. The procedure is simple and requires pressing the brake and gas in the right sequence. What if the brake pedal squeaks on application? TSB 08-05-22-002B is one of the most curious on record for a manufacturer. The bulletin covers all of the the Acadia and a lot of GM vehicles from 2004-2008. The bulletin states: Some customers may comment on a squeak noise when the brake pedal is applied or when released. This noise is normally heard when the brake pedal is slowly applied with the engine on or off, but can occur when the brake pedal is released. The noise may be isolated to the master cylinder area. To correct the problem, GM advises removing as much of the old brake fluid from the http://www.brakeandfrontend.com/www/Controls/PrinterFriendly/PrinterFriendly.aspx 10/23/2009 Printer Friendly Page 5 of 5 master cylinder as possible and refill with new DOT 3 brake fluid. Start the vehicle and fully cycle the brake pedal until the noise diminishes to allow the new fluid to enter the system. Was it a bad batch of brake fluid? GM has been silent on the cause. What if the customer complains of ABS noise during first driving? (Enclave, Acadia and Outlook 2007 & 2008 Model Years) Some customers may comment on excessive ABS initialization noise, which may be mistaken as front suspension noise. In addition, customers of 2008 model year vehicles may comment on traction control sensitivity. The ABS unit runs diagnostic routines as soon as the vehicle reaches 15 km/h (9 mph). Some customers may find the valve noise objectionable. The cure is to re-flash the module so the self-test is less noticeable. Prior to programming, you will need to know the tire size. Calibrations for 2008 model year vehicles contain additional software to reduce the traction control sensitivity. Brake and Front End | Copyright © 2009 Brake and Front End All Rights Reserved. http://www.brakeandfrontend.com/www/Controls/PrinterFriendly/PrinterFriendly.aspx 10/23/2009