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2004 Buick LeSabre Shake/Vibration in Steering Wheel, Floor, Seat at Highway Speeds on Smooth Roads (Diagnose/Balance Tires/Wheels) Service Manual

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Correction 1. Visually inspect the tires and the wheels. Inspect for evidence of the following conditions and correct as necessary: 2. Set the tire pressure to 30 psi (205 kPa) COLD. Subject: Shake/Vibration in Steering Wheel, Floor, Seat at Highway Speeds on Smooth Roads (Diagnose/Balance Tires/Wheels) Models: 1998-2005 Buick Park Avenue, Park Avenue Ultra 2000-2005 Buick LeSabre 1998-2004 Cadillac Seville (SLS, STS) 2000-2005 Cadillac DeVille (DTS only) 2001-2003 Oldsmobile Aurora 2000-2005 Pontiac Bonneville (17″ Tires only) • Missing balance weights • Bent rim flange • Irregular tire wear • Incomplete bead seating • Tire irregularities • Mud/ice build-up in wheel • Stones in the tire tread © 2009 General Motors Corporation. All rights reserved 3. Road test the vehicle with the Electronic Vibration Analyzer (EVA) essential tool for a sufficient distance on a known, smooth road surface to duplicate the condition. Record the Hertz (Hz) reading as displayed by the EVA onto the tire data worksheet found at the end of this bulletin. This should be done after a tire break-in period of at least 10 miles (16 km) at 45 mph (72 km/h) or greater, in order to eliminate any possible tire flat-spotting. 4. If the road test indicates a shake/vibration still exists, check the imbalance of each tire/wheel assembly on a known, calibrated, off-car dynamic balancer. If any assembly calls for more than ¼ ounce on either rim flange, remove all balance weights and rebalance to as close to zero as possible. Important: Some GM dealers may have a Hunter GSP9700 Road Force Balancer, or a Coats XR1850 Runout Balancer. Either will simplify Step 5 by not requiring dial indicators. If a Hunter GSP9700 machine is available, it may also be used to measure the radial force of the tire/wheel assembly. A guideline here is 18 lbs or less. 5. While on the balancer, measure wheel runout. If radial or lateral runout exceeds .020 in (0.50 mm) for aluminum wheels (.030 in (0.76 mm) for steel wheels), replace the wheel. 6. After confirming wheel balance and wheel runout, if any changes were made, road test the vehicle again. 7. If the smooth road shake/vibration still exists: Important: THE CONTROL ARMS SHOULD ONLY BE INSTALLED ON VEHICLES IF, AFTER THE TIRE AND WHEEL DIAGNOSIS AND REPAIRS HAVE BEEN PERFORMED, THE VIBRATION CONDITION STILL EXISTS. 8. Replace both lower control arms on vehicles built prior to the following VIN breakpoints. On Aurora, Bonneville, DeVille, Park Avenue, Park Avenue Ultra and Seville models, a newly developed hydro-bushing lower control arm with improved damping characteristics has been released. This control arm is not used on the LeSabre. The new lower control arms may provide an incremental improvement to the vehicle ride. Customers who have become “tuned in” to the shake condition may still feel some shake in the vehicle after the new lower control arms are installed. Refer to Lower Control Arm Replacement in SI (refer to the Parts Information table below for SI document ID numbers) . Important: The completed worksheet must be attached to the hard copy of the repair order. • If a Hunter GSP9700 Road Force/Balancing machine is used, record radial force variation (RFV) on the worksheet at the end of this bulletin. If one or more of the tire/wheel assemblies read more than 18 lbs, match mount the tire to the wheel to get below 18 lbs. Readings of 12 lbs or less are preferable for sensitive customers. • If a Coats XR1850 Runout/Balancing Machine is used, record radial runout of the tire/wheel assemblies on the worksheet at the end of this bulletin. If one or more of the tire/wheel assemblies are more than .040, match mount the tire to the wheel to get below .040. Readings of .030 inch or less are preferable for sensitive customers. • If the RFV or runout cannot be reduced to an acceptable level, replace the affected tire(s) under the guidelines of the GM Tire Warranty. • The screened tire program is only available for the General branded tires used on the Buick LeSabre. Complete the tire request form at the end of this bulletin and fax to Continental/General. • Road test the vehicle to ensure the shake/vibration has been eliminated

1998-2000 ISUZU RODEO/AMIGO HIGH/ERRATIC IDLE CONDITION SERVICE MANUAL

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1998 – 2000 MODELS 1. Inspect main ground points (refer to SB99*04*S001 for more information). * P6 ground point-body [on the passenger side of engine compartment, between the battery and cruise control actuator (if equipped)]. (Figure Fig. 1 ) * P10 ground point-engine (at the alternator bracket) . (Figure Fig. 2 ) Isuzu: 1998 – 2000 Rodeo AFFECTED VEHICLES:1998 – 2000 Rodeo (UE)/Amigo (UA) models with 3.2L V6 engines NOTE: Please refer to the appropriate workshop manual for the correct diagnosing procedure and/or follow the service procedures outlined in this bulletin for the vehicle being serviced. NOTE: The 1998, 1999 or 2000 Rodeo/Amigo Electrical Troubleshooting Manual can assist in locating the vehicle ground distribution (i.e., ground contact points). * Perform a voltage drop test at the main ground points. * If the voltage drop test fails, then inspect and clean both the bolt and contact point. * Verify and correct idle settings (if needed) as described in the workshop manual. * If the repair procedure on this step solves the high idle condition, then return the vehicle to the customer. If the repair procedure on this step does not solve the high idle condition, then go to step 2 (16 pin Blue Connector). B. Remove P-6/P-10 ground terminal and bolt for ground contact inspection. * Inspect ground contact area for corrosion. * Inspect bolt and thread for damage or corrosion. * Clean the ground area and fastening bolt thoroughly with a wire brush. * Replace bolt if damaged or heavily corroded. C. Install the P-6/P-10 ground terminal and bolt (tighten using hand tools only). * Torque the P-6/P-10 ground terminal bolt to (14 N.m) 10 lb.ft. 1998 – 1999 MODELS ONLY 2. Inspect the 16 pin blue connector, located under the power steering fluid reservoir for corrosion, bent, or damaged pins (specifically for the Throttle Position Sensor). (Figure Fig. 3 )

1995-1999 Buick Riviera Steering Vibration/Shudder/Moan During Parking Maneuvers on Dry Pavement (Install Power Steering Pressure (Inlet) and/or Return (Outlet) Hose Assembly)

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1. Verify that the power steering pump reservoir is full. 2. Verify that the accessory drive belt is in good condition and that the pulleys are not bent or damaged. 3. Verify proper belt tension and operation of the belt tensioner. 4. Check for power steering hose ground out conditions. 5. Check for good engine idle and correct engine RPM. 6. Check to see that the rear transaxle mount does not have a plastic assembly aid installed which is used Subject: Steering Vibration/Shudder/Moan During Parking Maneuvers on Dry Pavement (Install Power Steering Pressure (Inlet) and/or Return (Outlet) Hose Assembly) Models: 1995-99 Buick Riviera 1997-2001 Buick Park Avenue, Ultra 2000-2001 Buick LeSabre 2000-2001 Pontiac Bonneville • 1995-98 Buick Riviera • 1997-98 Buick Park Avenue and Ultra • 1999 Buick Riviera • 1999-2001 Buick Park Avenue and Ultra • 2000-2001 Buick LeSabre • 2000-2001 Pontiac Bonneville • If fluid level is low, fill and check for leaks. • If power steering system has air in the system, perform the “Bleeding Air from Power Steering System” procedure as described in the Power Steering System sub-section of the Service Manual. Important: When performing the “Bleeding Air from Power Steering System” procedure, it is important that the front of the vehicle is supported by the lower control arms. If the vehicle is not supported by the lower control arms, the procedure may cause the strut bushing to dislocate and cause new concern. for assembly purposes. If the assembly aid is installed, remove the assembly aid and install the rear transaxle mount. 7. With the vehicle on dry pavement, maneuver the vehicle in parking positions. If the steering vibrates/shudders or moans in this test, replace the power steering pressure hose and/or the harmonic balancer. Important: A defective harmonic balancer on the 1995 Buick Riviera can influence steering vibrations after power steering hose installation. Important: When installing the pressure hose on the 1995 Buick Riviera, pull down on the pressure hose at the rear of the engine or bend the hose to allow clearance between the hose and the front of the dash. Power Steering Pressure (Inlet) Hose Replacement Procedure For 1995-1998 Vehicles: 1. Raise and suitably support the vehicle. Refer to Vehicle Lifting and Jacking in the General Information section of the Service Manual. 2. Drain the power steering fluid. Refer to Draining the Power Steering System in the Power Steering section of the Service Manual. 3. Remove the power steering gear assembly heat shield (1). 4. Disconnect the power steering pressure hose from the power steering pump assembly (4). 5. Remove the bolt/screws from the retaining clips (3). 6. Disconnect the power steering pressure hose from the power steering gear assembly (2). 7. Remove the power steering pressure hose assembly from the vehicle. 8. Install the power steering pressure hose assembly to the vehicle. 9. Connect the power steering pressure hose to the power steering pump assembly (4). 10. Connect the power steering pressure hose to the power steering gear assembly (2). Tighten Tighten the power steering pressure hose to the steering gear to 27 N·m (20 lb ft). 11. Install the bolt/screws to the retaining clips (3). Tighten Tighten the retaining clip bolt/screws to 6 N·m (53 lb in). 12. Install the power steering gear assembly heat shield (1). 13. Lower the vehicle. 14. Fill and bleed the power steering system using, J 43485. Refer to Corporate Bulletin Number 83-32-09, dated November, 1998. Power Steering Pressure (Inlet) and Return (Outlet) Hose Replacement Procedure For 1999-2001 Vehicles: 1. Raise and suitably support the vehicle. Refer to Vehicle Lifting and Jacking in the General Information section of the Service Manual. 2. Drain the power steering fluid. Refer to Draining the Power Steering System in the Power Steering section of the Service Manual. 3. Remove the LH front wheel/tire assembly. 4. Remove the LH lower splash shield. 5. Remove the lower radiator air deflector (engine splash shield, if installed.

2000 Saturn SL2 L4-1.9L DOHC VIN 7 Body/ Electrical Service Manual

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1. Disconnect negative battery cable. 2. Remove lock cylinder bezel from steering column shroud by carefully prying with a thin bladed screwdriver. 3. Remove shroud fasteners and remove steering column upper and lower shroud panels. 4. Insert key into ignition lock cylinder and rotate to RUN position If ignition lock cylinder can be rotated to RUN position, continue to step 30. ^If ignition lock cylinder cannot be rotated to RUN position, continue with next step. 5. Using a light hammer and brass drift, tap lightly on the top side of the ignition housing assembly at the location indicated in the illustration, while trying to turn the ignition key. ^If the ignition key turns, proceed to step 30. ^If the ignition key does not turn replace the ignition module/passlock sensor by continuing with next step. 6. Disable SIR system. Refer to “Disabling Frontal Inflators” procedure in the 2000/2001 S-Series Body Electrical Volume II Service Manual

2000-2002 Infiniti G20 MIL “ON” REAR O2 SENSOR DTC P0138/P0139/P0140 Repair Manual

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SERVICE PROCEDURE You will be performing the following, as required: • Determine the DTC Stored in ECM from the CONSULT-II Self-diagnosis results. • ECM Part Number Check to determine if this bulletin applies. • ECM Reprogramming (required if the ECM P/N in the vehicle matches one of those listed under “Current ECM P/N” in Chart A -page 2). • Replacing the Rear Oxygen Sensor (required if ECM Reprogramming is needed). Determine the DTC Stored in ECM: 1. Determine which DTC code is stored in the vehicle’s ECM by performing CONSULT-II Self-Diagnosis. 2. Print out the Self-Diagnosis results for use in ECM Part Number Check , below. See Figure 1 for an example of the CONSULT-II Self-Diagnosis printout. Figure 1 SELF-DIAG RESULTS SYSTEM ENGINE DATE 03/15/2002 3:35:35 P/N 23710-7J400 DTC Code TP020169 DTC RESULTS TIME HO2S2 (B1) 3 [P0138] Current ECM Part Number 2/3 ECM Part Number Check 1. Compare the vehicle’s current ECM P/N (from your CONSULT-II Self Diagnosis printout) to those shown under Current ECM P/N in Chart A , below: Chart A – Current ECM P/N’s: Vehicle Current ECM P/N 2000 M/T 23710-7J400, -7J401, -7J402, -7J460 2000 A/T 23710-7J410, -7J411, -7J412, 7J470 2001-2002 M/T 23710-6J105, -6J106, -6J107, -6J108, 6J170 2001-2002 A/T 23710-6J115, -6J116, -6J117, -6J118, -6J180 A. If the ECM P/N in the vehicle matches one of those listed under “Current ECM P/N” in Chart A (above): • Look in the “Vehicle” Column in Chart A (above) and determine the vehicle “configuration” (i.e. 2002 M/T). Make a note of the vehicle configuration and perform ECM Reprogramming , below. B. If the ECM P/N in the vehicle does not match one of those listed under “Current ECM P/N” in Chart A (above): • This bulletin does not apply. Use the appropriate Electronic Service Manual (ESM) to further diagnose and repair the incident. ECM Reprogramming 1. Perform ECM Reprogramming to install the latest available ECM data. • If you are unfamiliar with ECM Reprogramming, click here to link to the “ECM Reprogramming For Infiniti Vehicles” general procedure or refer to Attachment A in the print copy of this bulletin. • For those familiar with ECM Reprogramming, perform the following: