Campaign PB072 - Drive Belt Tensioner Bolt Torque: Overview
Reference: NTB08-051Date: May 24, 2008
VOLUNTARY SERVICE CAMPAIGN
2008 ALTIMA SEDAN DRIVE BELT TENSIONER BOLTS (2.5L ENGINE)
CAMPAIGN ID #: PB072
APPLIED VEHICLE: 2008 Altima Sedan (L32) with 4 cylinder 2.5L engine
(Coupe and Hybrid NOT included)
Use Service COMM to confirm campaign eligibility
INTRODUCTION
Nissan has determined that on certain 2008 Altima sedans equipped with 2.5-liter engines, the engine accessory drive belt tensioner bolts may not have been torqued to specification. This may affect performance of certain engine accessories, including the air conditioning compressor, alternator, and the water pump. To prevent this potential condition, Nissan is conducting this Voluntary Service Campaign to torque the auto tensioner bolts and if necessary replace the bolts free of charge for parts or labor.
IDENTIFICATION NUMBER
Nissan has assigned identification number PB072 to this campaign. This number must appear on all communications and documentation of any nature dealing with this campaign.
DEALER RESPONSIBILITY
Dealers are to correct each vehicle falling within the range of this campaign that enters the service department. This includes vehicles purchased from private parties or presented by transient (tourist) owners and vehicles in a dealer's inventory.
Repair Overview
SERVICE PROCEDURE
1. Turn the ignition OFF.
2. Raise the vehicle on a lift / hoist.
3. Turn the steering wheel all the way to the right.
4. Remove the right front wheel well splash shield.
^ Shield is held on with 5 clips.
5. Remove the drive belt as follows:
CAUTION:
^ Do not loosen (do not turn counterclockwise) the auto-tensioner pulley bolt. If turned counterclockwise, the complete auto-tensioner must be replaced as a unit, including the pulley.
^ Avoid placing a hand in a location where pinching may occur if the wrench accidentally comes off.
a. Use a 14 mm off-set box wrench on the auto-tensioner pulley bolt.
b. Pull / push on the wrench as if turning the bolt in a clockwise direction.
c. While holding / pulling the wrench. insert a rod (approximately 6 mm / 0.24 inch diameter and at least 25 mm / 1 inch long) through the tensioner retaining boss.
NOTE:
For illustration, a 6 mm Allen driver was used to hold the tensioner / retaining boss.
d. Carefully allow the tensioner to move to a relaxed position (Carefully release your pulling force on the wrench).
e. Remove the drive belt.
6. Remove the rod from the retaining boss as follows:
a. Use a 14 mm off-set box wrench on the auto-tensioner pulley bolt.
b. Pull / push on the wrench as if turning the bolt in a clockwise direction.
c. While holding / pulling the wrench, remove the rod from the tensioner retaining boss.
d. Carefully and slowly allow the tensioner to move to a relaxed position (Carefully / slowly release your pulling force on the wrench).
NOTE:
With the tensioner in a fully relaxed position you can access the tensioner mounting bolts.
NOTE:
You will be servicing the upper and lower mounting bolts for the drive belt auto-tensioner.
7a. Vehicles with less than 100 miles on the odometer:
a. Loosen the upper and lower drive belt auto-tensioner mounting bolts two or three turns.
b. Skip to step 8.
7b. Vehicles with 100 miles or more on the odometer:
a. Remove the upper and lower drive belt auto-tensioner mounting bolts.
^ Discard the old bolts.
b. Install new bolts.
^ New bolts are listed in the Parts Information.
8. Torque the drive belt auto-tensioner mounting bolts to the correct specification.
^ Setting the torque on the mounting bolts is easiest when using a deep socket (approximately 2 inch depth) and a flex-head torque wrench.
^ Torque mounting bolts to 25 N-m (2.6 Kg-m, 18 ft-lb).
9. Reinstall the drive belt in reverse order of removal.
^ Confirm the drive belt is routed correctly and seated onto the pulleys.
10. Reinstall the splash shield.
11. Start the engine and confirm the drive belt is operating correctly.
PARTS INFORMATION
CLAIMS INFORMATION