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Buick Enclave: Specifications, Diagnostic Information and Procedures

Buick Enclave 2008-2017 Service Manual / Suspension / Tires and Wheels / Specifications, Diagnostic Information and Procedures

SPECIFICATIONS

FASTENER TIGHTENING SPECIFICATIONS

Fastener Tightening Specifications

Buick Enclave. Tires and Wheels

ADHESIVES, FLUIDS, LUBRICANTS AND SEALERS

Adhesives, Fluids, Lubricants and Sealers

Buick Enclave. Tires and Wheels

DIAGNOSTIC INFORMATION AND PROCEDURES

TIRE DIAGNOSIS - IRREGULAR OR PREMATURE WEAR

Tire Wear

Buick Enclave. Tires and Wheels
Fig. 1: Identifying Types Of Tire Wear

Buick Enclave. Tires and Wheels

Inspection Procedure

1. Inspect the front tire wear.

2. Inspect the rear tire wear.

3. Rotate the tires if any of the following conditions exist:

4. Measure the wheel alignment if any of the following conditions exist:

5. Inspect the struts or the shock absorbers if the tire tread exhibits a cupped appearance (3).

TIRE DIAGNOSIS - WADDLE COMPLAINT

Buick Enclave. Tires and Wheels
Fig. 2: Identifying Tire Wobble/Waddle

Tire waddle is a side to side movement at the front of the vehicle and/or the rear of the vehicle. Tire waddle can be caused by the following conditions:

The tire waddle is most noticeable at a low speed of about 8-48 km/h (5-30 mph). Tire waddle may appear as ride roughness at 80-113 km/h (50-70 mph). Tire waddle may appear as a vibration at 80-113 km/h (50-70 mph).

Inspection Procedure

1. Raise and support the vehicle with safety stands. Refer to Lifting and Jacking the Vehicle.

2. Perform the following preliminary inspection:

WARNING: Wear gloves when inspecting the tires in order to prevent personal injury from steel belts sticking through the tire.

  1. Mark the tire with a crayon in order to note the start and the stop position.
  2. Rotate each tire and wheel by hand.
  3. Inspect the tire for bulges or bent wheels. Replace as necessary.

3. Use tire substitution in order to identify the faulty tire. Perform the following steps for a tire substitution check:

  1. Use a comparable tire in order to replace each tire, one at a time.
  2. Test drive the vehicle.
  3. If the problem is tire or wheel related, you will eliminate the problem when you remove the faulty tire from the vehicle.

WHEEL MOUNTING SURFACE CHECK

Replace any wheels that are bent or dented or have excessive lateral or radial runout. Wheels with runout greater than specified may cause objectionable vibrations.

1. Thoroughly clean the wheel mounting surface with a clean shop towel and denatured alcohol or equivalent.

Buick Enclave. Tires and Wheels
Fig. 3: Checking Wheel Mounting Surface

2. Use a straight edge 203-229 mm (8-9 in) long. Place the straight edge on the wheel inboard mounting surface. Try to rock the straight edge up and down within the mounting surface.

3. For aluminum flat-mount wheels, repeat the procedure in step 2 on at least 3-4 different positions on the inboard mounting surface.

If you can rock the straight edge, the mounting surface is bent and you must replace the wheel.

4. Inspect the mounting wheel/nut holes for damage caused from over-torquing the wheel/nuts. Inspect for collapsed wheel/nut bosses. Inspect for cracked wheel bosses.

5. For steel wheels, repeat the procedure in step 2 on at least 3-4 different positions on the inboard mounting surface.

Buick Enclave. Tires and Wheels
Fig. 4: Inspecting Wheel Inboard Mounting Surface

6. Inspect the mounting wheel/nut holes for damage caused from over-torquing the wheel/nuts. Inspect for collapsed wheel/nut bosses. Inspect for cracked wheel bosses.

Buick Enclave. Tires and Wheels
Fig. 5: Inspecting Mounting Wheel/Nut Holes For Damage Caused From Over-Torquing The Wheel/Nuts

7. Replace the wheel if the wheel is bent.

CAUTION: The use of non-GM original equipment wheels may cause:

NOTE:

8. Replace the wheel if the wheel/nut boss area is cracked.

Identify steel wheels with a 2 or 3-letter code stamped into the rim near the valve stem. Aluminum wheels have the code, the part number and the manufacturer identification cast into the back side of the wheel.

RADIAL TIRE LEAD/PULL CORRECTION

Radial Tire Lead/Pull Correction

Buick Enclave. Tires and Wheels

Buick Enclave. Tires and Wheels

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