Tires and Wheels Buick Enclave I

Fastener Tightening Specifications

Fastener Tightening Specifications

Adhesives, Fluids, Lubricants, and Sealers

Adhesives, Fluids, Lubricants, and Sealers

Scheme 1

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: The amount of time or mileage since the last tire rotation matches the maintenance schedule. The outer tread blocks are worn more than the middle tread blocks (1). The outer tread blocks are worn more than the inner tread blocks (2). The middle tread blocks are worn more than the outer tread blocks (4).
4. Measure the wheel alignment if any of the following conditions exist: The tread blocks have feathered edges (3). The outer tread blocks are worn more than the inner tread blocks (2). The inner tread blocks are worn more than the outer tread blocks (2).
5. Inspect the struts or the shock absorbers if the tire tread exhibits a cupped appearance (3).

Scheme 2

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

1. A steel belt not being straight within the tire
2. Excessive lateral runout of the tire
3. Excessive lateral runout of the wheel

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).

1. Raise and support the vehicle with safety stands. Refer to «Lifting and Jacking the Vehicle»(/buick/enclave/i-2007-2013/remont/ignition-switchsteering-lock/#general-information__lifting-and-jacking-the-vehicle) .
2. Perform the following preliminary inspection: Mark the tire with a crayon in order to note the start and the stop position. Rotate each tire and wheel by hand. 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: Use a comparable tire in order to replace each tire, one at a time. Test drive the vehicle. 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.
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. The outer mounting ring is designed to be raised slightly above the inner mounting ring. If you can rock the straight edge, the mounting surface is bent and you must replace the wheel.
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.
7. Replace the wheel if the wheel is bent.
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

Aluminum Wheel Porosity Repair

1. Remove the tire and wheel. Refer to «Tire and Wheel Removal and Installation»(/buick/enclave/i-2007-2013/remont/wheel-tire-system/#tires-and-wheels__tire-and-wheel-removal-and-installation) .
2. Inflate the tire to the manufactures specified pressure as stated on the tire.
3. Submerge the tire/wheel into a water bath in order to locate the leak.
4. Inscribe a mark on the wheel in order to indicate the leak areas.
5. Inscribe a mark on the tire at the valve stem in order to Indicate the orientation of the tire to the wheel.
6. Remove the tire from the wheel. Refer to «Tire Dismounting and Mounting»(/buick/enclave/i-2007-2013/remont/wheel-tire-system/#tires-and-wheels__tire-dismounting-and-mounting) .
7. Use number 80 grit sandpaper to scuff the inside of the rim surface at the leak area.
8. Use general purpose cleaner such as 3M®, P/N 08984 or equivalent, to clean the leak area.
9. Apply 3 mm (0.12 in) thick layer of adhesive/sealant, GM P/N 12378478, (Canadian P/N 88900041) or equivalent to the leak area.
10. Allow for the adhesive/sealant to dry.
11. Align the inscribed mark on the tire with the valve stem on the wheel.
12. Install the tire to the wheel. Refer to «Tire Dismounting and Mounting»(/buick/enclave/i-2007-2013/remont/wheel-tire-system/#tires-and-wheels__tire-dismounting-and-mounting) .
13. Inflate the tire to the manufactures specified pressure as stated on the tire.
14. Submerge the tire/wheel into a water bath in order to ensure the leak is sealed.
15. Balance the tire and wheel. Refer to «Tire and Wheel Assembly Balancing - Off Vehicle»(/buick/enclave/i-2007-2013/remont/oem-general-information/#vibration-diagnosis-and-correction__tire-and-wheel-assembly-balancing) .
16. Install the tire and wheel. Refer to «Tire and Wheel Removal and Installation»(/buick/enclave/i-2007-2013/remont/wheel-tire-system/#tires-and-wheels__tire-and-wheel-removal-and-installation) .
17. Lower the vehicle.

Finish Damage Evaluation Procedure

1. Inspect the wheels for damage from uncoated wheel balance weights or from automatic car wash facilities.
2. Inspect the wheels for the following conditions: Corrosion Scrapes Gouges
3. Verify the damage is not deeper than what sanding can remove.
4. Inspect the wheels for cracks. If a wheel has cracks, discard the wheel.
5. Inspect the wheels for bent rim flanges. If a rim flange is bent, discard the wheel.

Refinishing Procedure

1. Remove the tire and wheel assembly from the vehicle. Refer to «Tire and Wheel Removal and Installation»(/buick/enclave/i-2007-2013/remont/wheel-tire-system/#tires-and-wheels__tire-and-wheel-removal-and-installation) .
2. Remove the balance weights from the wheel.
3. Remove the tire from the wheel. Refer to «Tire Dismounting and Mounting»(/buick/enclave/i-2007-2013/remont/wheel-tire-system/#tires-and-wheels__tire-dismounting-and-mounting) .
4. Use a suitable cleaner in order to remove the following contaminants from the wheel: Lubricants Wax Dirt
5. Use plastic media blasting in order to remove the paint from the wheel.
6. If the wheel had a machined aluminum finish, spin the wheel and use sand paper in order to restore the circular machined appearance.
7. Mask the wheel mounting surface and the wheel nut contact surface.
8. Follow the paint manufacturer's instructions for painting the wheel.
9. Unmask the wheel.
10. Install a new valve stem.
11. Install the tire to the wheel. Refer to «Tire Dismounting and Mounting»(/buick/enclave/i-2007-2013/remont/wheel-tire-system/#tires-and-wheels__tire-dismounting-and-mounting) .
12. Use a suitable cleaner in order to remove the following contaminants from the wheel mounting surface: Corrosion Overspray Dirt
13. Install the tire and wheel assembly to the vehicle. Refer to «Tire and Wheel Removal and Installation»(/buick/enclave/i-2007-2013/remont/wheel-tire-system/#tires-and-wheels__tire-and-wheel-removal-and-installation) .

Tire and Wheel Removal and Installation

Special Tools

1. CH-41013 Rotor Resurfacing Kit
2. CH-42450 Wheel Hub Resurfacing Kit

Removal Procedure

1. Raise and support the vehicle. Refer to «Tire and Wheel Removal and Installation»(/buick/enclave/i-2007-2013/remont/wheel-tire-system/#tires-and-wheels__tire-and-wheel-removal-and-installation) .
2. Remove the wheel center cap, if equipped.
3. Remove the wheel center cap nuts, if equipped.
4. Remove the wheel nuts.
5. Remove the tire and wheel assembly.
6. If the tire and wheel assembly is difficult to remove or cannot be removed, perform the following steps: Loosen each nut 2 complete turns. Lower the vehicle. Rock the vehicle from side to side. Repeat the procedure if necessary.
7. With the tire and wheel assembly loose, raise and support he vehicle.
8. Remove the tire and wheel assembly.
9. Using a wire brush or wire wheel, clean the rotor to wheel or brake drum to wheel contact area.
10. Where possible, use the CH-41013 kit to clean the contact areas of the wheel to brake rotor or brake drum.
11. Using the CH-42450 kit , clean the surface around the wheel studs.
12. Clean the threads of the wheel studs. If the threads are damaged, replace the wheel stud. For the front wheel stud replacement, refer to «Wheel Stud Replacement»(/buick/enclave/i-2007-2013/remont/suspension-front/#front-suspension-system__wheel-stud-replacement) . For the rear wheel stud replacement, refer to «Wheel Stud Replacement»(/buick/enclave/i-2007-2013/remont/suspension-rear/#rear-suspension-system) .
13. After cleaning all the contact areas, use brake clean or denatured alcohol to remove all the dirt and debris from wheel nuts, brake rotor or drum.
14. Inspect and clean the contact area of the wheel. Refer to «Wheel Mounting Surface Check»(/buick/enclave/i-2007-2013/remont/wheel-tire-system/#tires-and-wheels__wheel-mounting-surface-check) .

Installation Procedure

1. Apply a small amount of lubricant to the inner diameter of the wheel hub pilot hole where it contacts the wheel bearing/hub flange. Refer to «Adhesives, Fluids, Lubricants, and Sealers»(/buick/enclave/i-2007-2013/remont/wheel-tire-system/#tires-and-wheels__adhesives-fluids-lubricants-and-sealers) .
2. Install the tire and wheel assembly.
3. Install the wheel nuts and tighten to 190 N.m (140 lb ft)..
4. Install the wheel center cap, if equipped.
5. Install the wheel center cap nuts, if equipped.
6. Remove the safety stands.
7. Lower the vehicle.

Tire Repair

Many different materials and techniques are available on the market in order to repair tires. Not all of the materials and techniques work on some types of tires. Tire manufacturers have published detailed instructions on how and when to repair tires. Obtain the instructions from the manufacturer. Do NOT repair the compact spare tire.

Tire Dismounting and Mounting

1. Remove the valve core from the valve stem.
2. Deflate the tire completely.
3. Use the tire changer in order to remove the tire from the wheel. Follow steps 4-7 to remove the tire from the wheel.
4. When separating the tire bead from the wheel, position the bead breaking fixture 90, 180 and 270 degrees from the valve stem.
5. Position the wheel and tire so the valve stem is at the 7 o'clock position relative to the head. The tire iron or pry bar can be inserted when prying the outer tire bead up and over the mounting/dismounting head.
6. Position the wheel and tire so the valve stem is again at the 7 o'clock position relative to the head. The tire iron or pry bar can be inserted when prying the inner tire bead up and over the mounting/dismounting head.
7. Remove all residual liquid sealant from the inside of the tire and wheel surfaces. If any tire sealant is noted upon tire dismounting on vehicles equipped with TPM, replace the tire pressure sensor. Refer to «Tire Pressure Indicator Sensor Replacement (Snap In Style)»(/buick/enclave/i-2007-2013/remont/warning-system/#tire-pressure-monitoring-system) .
8. Use a wire brush or coarse steel wool in order to remove any rubber, light rust or corrosion from the wheel bead seats.
9. Apply mounting lubricant to the tire bead and the wheel rim. Refer to «Adhesives, Fluids, Lubricants, and Sealers»(/buick/enclave/i-2007-2013/remont/wheel-tire-system/#tires-and-wheels__adhesives-fluids-lubricants-and-sealers) .
10. Position the rim so the valve stem (1) is at the 7 o'clock position relative to the head (2). This will protect the sensor when the bottom bead seats.
11. Using the tire machine, rotate the tire/wheel assembly clockwise when transferring the tire bead to the inside of the wheel rim. Ensure that the valve stem (1) is at the 7 o'clock position.
12. After the bottom bead is on the wheel, reposition the wheel and tire so that the valve stem (1) is at the 7 o'clock position relative to the head. This will protect the sensor while mounting the tire bead to the outside of the wheel.
13. Use the tire changer in order to install the tire to the wheel.
14. Inflate the tire until it passes the bead humps. Be sure that the valve core is not installed at this time.
15. Install the valve core to the valve core stem.
16. Inflate the tire to the proper air pressure.
17. Ensure that the locating rings are visible on both sides of the tire in order to verify that the tire bead is fully seated on the wheel.

Tire Rotation

Rotate the tires and wheels at frequent intervals to equalize wear. In addition to scheduled rotation, rotate the tire and wheel whenever uneven tire wear is noticed.

Radial tires tend to wear faster in the shoulder area, particularly in front positions. Radial tires in non-drive locations may develop an irregular wear pattern that may increase tire noise. This makes regular rotation especially necessary.

Refer to Tire and Wheel Removal and Installation for tire removal.

Scheme 3

Always use a 4-wheel rotation. After rotation, check the wheel nuts for specified torque. Then, set the tire pressure.

Scheme 4

Spare Wheel Hoist Replacement

Scheme 5

Most GM vehicles are equipped with steel belted all-season radial tires as standard equipment. These tires qualify as snow tires, with a higher than average rating for snow traction than the non-all season radial tires previously used. Other performance areas, such as wet traction, rolling resistance, tread life, and air retention, are also improved. This is done by improvements in both tread design and tread compounds. These tires are identified by an M + S molded in the tire side wall after the tire size. The suffix MS is also molded in the tire side wall after the TPC specification number.

The optional handling tires used on some vehicles now also have the MS marking after the tire size and the TPC specification number.

General Description

The factory installed tires are designed to operate satisfactorily with loads up to and including the full rated load capacity when these tires are inflated to the recommended pressures.

The following factors have an important influence on tire life

1. Correct tire pressures
2. Correct wheel alignment
3. Proper driving techniques
4. Tire rotation

The following factors increase tire wear

1. Heavy cornering
2. Excessively rapid acceleration
3. Heavy braking

Metric Wheel Nuts and Bolts Description

Metric wheel/nuts and bolts are identified in the following way

1. The wheel/nut has the word Metric stamped on the face.
2. The letter M is stamped on the end of the wheel bolt.

The thread sizes of metric wheel/nuts and the bolts are indicated by the following example: M12 x 1.5.

1. M = Metric
2. 12 = Diameter in millimeters
3. 1.5 = Millimeters gap per thread

Scheme 6

Replacement tires should be of the same tire performance criteria (TPC) specification number. This will ensure the same size, the same load range, and the same construction as those originally installed on the vehicle.

Replacement Wheels Description

Replace the wheel if any of the following conditions exist

1. The wheel exhibits excessive runout.
2. The wheel is bent.
3. The wheel is cracked.
4. The wheel is severely rusted.
5. The wheel is severely corroded.
6. The wheel leaks air.

Replace the wheel, the wheel studs and the wheel/nuts, or the wheel bolts if applicable, if any of the following conditions exist

1. The wheel has elongated bolt holes.
2. The wheel/nuts, or bolts if applicable, loosen repeatedly.

Steel wheel identification is stamped into the wheel near the valve stem.

Aluminum wheel identification is cast into the inboard side of the wheel.

Steel Wheel Repair Description

You can repair porosity in aluminum wheels. If leaks are found in a steel wheel, replace the wheel with a wheel of original equipment quality.

Tire Inflation Description

When you inflate the tires to the recommended inflation pressures, the factory-installed wheels and tires are designed in order to handle loads to the tire's rated load capacity. Incorrect tire pressures, or under-inflated tires, can cause the following conditions

1. Vehicle handling concerns
2. Poor fuel economy
3. Shortened tire life
4. Tire overloading

Inspect the tire pressure when the following conditions apply

1. The vehicle has been sitting at least 3 hours.
2. The vehicle has not been driven for more than 1.6 km (1 mi).
3. The tires are cool.

Inspect the tires monthly or before any extended trip. Adjust the tire pressure to the specifications on the tire label. Install the valve caps or the extensions on the valves. The caps or the extensions keep out dust and water.

The kilopascal (kPa) is the metric term for pressure. The tire pressure may be printed in both kilopascal (kPa) and psi. One psi equals 6.9 kPa.

Inflation Pressure Conversion (Kilopascals to PSI)

Tires with a higher than recommended pressure can cause the following conditions

1. A hard ride
2. Tire bruising
3. Rapid tread wear at the center of the tire

Tires with a lower than recommended pressure can cause the following conditions

1. A tire squeal on turns
2. Hard steering
3. Rapid wear and uneven wear on the edge of the tread
4. Tire rim bruises and tire rim rupture
5. Tire cord breakage
6. High tire temperatures
7. Reduced vehicle handling
8. High fuel consumption
9. Soft riding

Unequal pressure on the same axle can cause the following conditions

1. Uneven braking
2. Steering lead
3. Reduced vehicle handling

Refer to the Tire Placard for specific tire and wheel applications and tire pressures.

Scheme 7

The original equipment tires have tread wear indicators that show when you should replace the tires.

The location of these indicators are at 60 degree intervals around the outer diameter of the tire. The indicators appear as a 6 mm (0.25 in) wide band when the tire tread depth becomes 1.6 mm (2/32 in).

Special Tools

Illustration Tool Number/ Description J 39544-KIT Complete Torque Socket Set - 10 PCS

Scheme 8

See also:
• Lifting and Jacking the Vehicle
• Vehicle Leads/Pulls
• Wheel Alignment Measurement
• Tire and Wheel Assembly Balancing - Off Vehicle
• Wheel Stud Replacement
• Wheel Stud Replacement
• Fastener Caution
• Tire Pressure Indicator Sensor Replacement (Snap In Style)
• Tire and Wheel Removal and Installation
• Tire Dismounting and Mounting
• Wheel Mounting Surface Check
• Adhesives, Fluids, Lubricants, and Sealers