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Pontiac Grand Prix V6-191 3.1L (1989)03 · Maintenance
03 · Maintenance

Drive Belt: Specifications (page 4 of 4)

Make
Pontiac
Model
Grand Prix
Engine
V6-191 3.1L
Year
1989
Section
Drive Belt
MaintenanceSpecifications · page 4 of 4
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Drive Belt: Adjustments

NOTE  Belt tension is maintained by the tensioner and is not adjustable.

Belt Tension Gage

Serpentine Drive Belt

1. Run engine, with no accessories on, until normal operating temperature is reached. Turn engine off and read belt tension using belt tension gauge

J-23600-B or equivalent. Place gauge halfway between alternator and power steering pump.

2. Start engine, with accessories off, and allow system to stabilize for 15 seconds. Turn engine off. Using a 15 mm socket, apply clockwise force to

tensioner pulley bolt. Release force and immediately take a tension reading without disturbing belt tensioner position.

3. Using a 15 mm socket, apply counterclockwise force to tensioner pulley bolt, raise pulley to eliminate all tension. Slowly lower pulley to belt and

take a tension reading without disturbing belt tensioner position.

4. Average three readings. If average is not between 225 and 315 Nm (50-70 lbs) and belt is within tensioner's operating range, replace belt

tensioner. Refer to Drive Belt Tensioner / Service and Repair.

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Parts & tools for this job For 1989 Pontiac Grand Prix 3.1L

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