1993 buick roadmaster
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Filed Under (Buick) by admin on 14-11-2010
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.
Filed Under (Buick) by admin on 15-10-2009
On May 2007, the division of General Motors launched its new SUV model for 2008, the Buick Enclave. Buick Enclave is a full-size luxury crossover SUV. It is partially based on the Buick Centieme shown at the 2003 Detroit Auto Show. It has the same feature as the new GM Lambda platform, just like GMC Acadia, Chevrolet Traverse and Saturn Outlook. The Enclave replaced Buick’s SUVs such as the minivan-based Rendezvous, the truck-based Rainer, as well as the Terraza minivan.
Buick Enclave shares the same platform and mechanical underpinning with the Saturn Outlook, GMC Acadia and Chevrolet Traverse. It comes with a standard front-wheel drive with an option of all wheel drive. The Enclave has a seating capacity for at least seven passengers, with an optional second row bench seat instead of the standard chairs which increases the seating capacity to eigh
Filed Under (Toyota) by admin on 21-05-2010
Retrofitting A. Refrigerant and Oil Charges Overview S Oil and refrigerant charge amounts are different after the R–12 system has been retrofitted to R134a. Refrigerant charge amounts are less, while oil charge amounts are greater, compared to R–12 system requirements.* B. System Performance S A slight decrease in system performance may be noticed on some vehicles under certain operating conditions. C. Refrigerant Pressures S R134a high side pressures are greater than that of R–12 above ambient temperatures of 68°F. D. Flushing Requirements S There is no need to remove or flush R–12 mineral oil from the system. Simply charge the system with the specified type and amount* of PAG oil to provide proper lubrication.
Filed Under (Buick) by admin on 18-11-2010
Some 2002-2004 model year Chevrolet TrailBlazer and TrailBlazer EXT, GMC Envoy and Envoy XL, Oldsmobile Bravada vehicles, and 2004 Buick Rainier vehicles have tail lamp/stop lamp(s) that may become inoperative. Service Procedure 1. Open the rear liftgate. 2. Remove the two screws that attach both the left and right tail lamp assemblies and remove the lamps from the body. 3. Inspect the part number on both the left and right tail lamp circuit boards. Chevrolet – New P/N 16532713 Chevrolet Export – New P/N 16532714 Buick and Oldsmobile – New P/N 16532715 GMC – New P/N 16532716 • If the part number printed on a circuit boards IS one of the part number listed above, then the circuit board is the new design and does NOT need to be replaced. • If the part number printed on a circuit board is NOT one of the part numbers listed above, then the circuit boards is the old design and MUST BE REPLACED. Proceed to the next step if either circuit board needs to be replaced. 4. Turn on the tail lamps, directional signals, etc. and determine if there are any bulbs that require replacement. 5. Disconnect the electrical connector from the circuit board being replaced. 6. Remove the three screws attaching the circuit board to the tail lamp and remove the circuit board. 7. Install a NEW stop lamp bulb in a NEW circuit board. • On Chevrolet, Buick and Oldsmobile vehicles, the stop lamp bulb is located in the UPPER (top) socket in the circuit boards. • On GMC vehicles, the stop lamp bulb is located in the LOWER (bottom) socket in the circuit board. 8. Transfer the remaining bulbs from the old circuit board to the new circuit board. Replace any burned out bulbs. 9. Connect the electrical connector to the new circuit board(s). 10. Turn on the tail lamps, directional signals, etc. and verify that all bulbs are functional. 11. Install the circuit board to the tail lamp and install the three screws.
Filed Under (Buick) by admin on 18-11-2010
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.