download
Steering Vibration/Shudder/Moan During Parking Maneuvers on Dry Pavement (Install Power Steering Pressure (Inlet) and/or Return (Outlet) Hose Assembly) 1995-99 Buick Riviera 1997-2001 Buick Park Avenue, Ultra 2000-2001 Buick LeSabre 2000-2001 Pontiac Bonneville steering vibration, shudder or moan noise when steering during parking maneuvers on dry pavement. Correction Install a new power steering pressure (inlet) hose assembly on the following vehicles: • 1995-98 Buick Riviera • 1997-98 Buick Park Avenue and Ultra Install a new power steering pressure (inlet) and return (outlet) hose assembly on the following vehicles: • 1999 Buick Riviera • 1999-2001 Buick Park Avenue and Ultra • 2000-2001 Buick LeSabre • 2000-2001 Pontiac Bonneville 1. Verify that the power steering pump reservoir is full. • 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. Verify that the accessory drive belt is in good condition and that the pulleys are not bent or damaged. Verify proper belt tension and operation of the belt tensioner. Check for power steering hose ground out conditions. Check for good engine idle and correct engine RPM. Check to see that the rear transaxle mount does not have a plastic assembly aid installed which is used 2. 3. 4. 5. 6.

download
1. Remove the headlamp fasteners. 2. Using a pry bar, gently pry in the center area of the headlamp assembly. Pry the headlamp assembly straight forward in order to unsnap the headlamp ball stud from the ball stud socket. 3. Slide the headlamp straight forward and disconnect the headlamp electrical connectors from the forward lamp wiring harness. 4. Remove the headlamp from the vehicle. INSTALLATION PROCEDURE 1. Install the headlamp to the vehicle. 2. Connect the electrical connectors. 3. Position the headlamp in order to align the locator pins with the headlamp mounting bracket. 4. Press the headlamp rearward in order to engage the ball stud with the ball stud socket. 5. Install the headlamp fasteners. NOTE: Refer to Fastener Notice in Service Precautions. Tighten Tighten the headlamp mounting fasteners to 9 N.m (80 lb in) .

download
NOTE: Always remove lower ball joint before removing upper ball joint. Install lower ball joint before installing upper ball joint. DO NOT heat ball joint or axle to aid in installation. Removal 1. Remove steering knuckle. See STEERING KNUCKLE under REMOVAL & INSTALLATION. Remove snap ring from bottom ball joint socket. 2. Assemble “C” Frame (T74P-4635-C) and Receiver Cup (T83T-3050-A for Explorer and Ranger; D80T- 3010-A2 for Bronco and F150) on the lower ball joint. See Fig. 10 -13. 3. Turn forcing screw clockwise until lower ball joint is removed from spindle. Repeat procedure to remove upper ball joint. See Fig. 10 -13. Installation 1. Lower ball joint must be installed first. Assemble “C” Frame, Receiver Cup (T80T-3010-A for Explorer and Ranger, or T80T-3010-A3 for Bronco and F150), and Installation Cup (T83T-3050-A for Explorer and Ranger; D81T-3010-A for Bronco and F150). See Fig. 10 -13. 2. Turn forcing screw to install ball joint. Ensure ball joint is fully seated. To install upper ball joint, assemble “C” Frame, Receiver Cup (T80T-3050-A for Explorer and Ranger; T80T-3010-A3 for Bronco and F150), and Installation Cup (T83T-3050-A for Explorer and Ranger; D80T-3010-A for Bronco and F150). See Fig. 10 -13. 3. Turn forcing screw to install ball joint. Ensure ball joint is fully seated. Install snap ring on ball joints, and install steering knuckle.

download
temperature variation between the left and right hand ducts. Typical concerns may include that the right side of the vehicle cools down but the left stays warm or the opposite. This condition is sometimes associated by the customer with a recent service visit for other non-related repairs. The codes, DTC B0361 or B0441, may be present but will not illuminate a telltale lamp. The HVAC controller unit and the TEMP door actuator motors rely on a feedback system that supplies the controller with count values in order to accurately adjust the air temperature. When battery power is interrupted to the HVAC controller, the current actuator position values are lost. When power is restored, the controller will perform a “sweep test” of the doors from full cold to full hot and record the end values for reference. Over time, the TEMP doors may develop some flexing when run to their extremes. This flexing allows the count values to run out of range (beyond 0-255) and results in DTC code B0361 or B0441 to set. A revised HVAC controller has been released with new programming that allows for a wider tolerance in the expected range of the TEMP door. Replace the controller using the procedure below: Important: On the 1997 Buick Century and Regal, additional steps are required. You will have to run a jumper wire to the new HVAC controller. Be sure to follow the additional 1997 model year steps below. 1. Disconnect the negative battery cable. Important: On the Buick Regal, the console must first be removed to access the HVAC controller. For Buick Century and Oldsmobile Intrigue, skip to Step 10. Apply the parking brake and block wheels. Shift the transmission to first gear. Remove the console trim plate and disconnect the electrical harness. Disconnect the cigarette lighter sockets. Remove the console storage box. Remove the console control plate and disconnect electrical harness for traction control and heated seats, if equipped. 8. Remove the console retaining bolts. 9. Remove the console from the vehicle. 10.Remove the HVAC trim panel, if equipped. 11.Remove the HVAC controller retaining bolts. 12.Disconnect the electrical harness. 13.Discard the HVAC controller.

download
Condition General Motors has decided that all 1997-1998 Buick Regal GS and Pontiac Grand Prix GTP model vehicles equipped with L67 3.8L V6 engines, located in the high corrosion provinces of Newfoundland, Nova Scotia, Prince Edward Island, New Brunswick, Quebec and Ontario, may develop an electrical open in the fuel pump resistor. This condition prevents operation of the fuel pump and the engine will not run. Correction Dealers are to install a new resistor on the plenum with an aesthetic cover. Vehicles Involved Involved are all 1997-1998 Buick Regal GS and Pontiac Grand Prix GTP model vehicles equipped with L67 3.8L V6 engines and built within these VIN breakpoints: