TORQUE SPECIFICATIONS
| DESCRIPTION | N.m | Ft. Lbs. | In. Lbs. |
|---|
| Fasteners-Accessory Drive Belt Tensioner Bracket (2.0L) | 30 | | 265 |
| Fastener-Accessory Drive Belt Tensioner Assembly(2.4L) | 54 | 40 | |
| Fasteners-Accessory Drive Belt Tensioner Bracket (2.7L) | 28 | | 250 |
| Fasteners-A/C Condenser to Radiator | 5 | | 45 |
| Bolts-Coolant Outlet Connector | 12 | | 105 |
| Cooling System Bleed Valve | 12 | | 105 |
| Fasteners-Fan Module to Radiator | 5 | | 45 |
| Fasteners-Fan Motor to Shroud | 5 | | 45 |
| Bolts-Thermostat Housing to cylinder head - 2.0L/2.4L | 28 | | 250 |
| Bolts-Thermostat Housing 2.7L | 12 | | 105 |
| Fastener-Transmission Cooler Tube Bracket | 5 | | 45 |
| Fastener-Transmission Cooler Tube | 9 | | 80 |
| Fitting - Transmission oil cooler quick connect fitting | 15 | | 132 |
| Hose Clamps-Transmission Cooler | 3.2 | | 28 |
| Bolts-Water Pump Mounting 2.0L/2.4L/2.7L | 12 | | 105 |
| Bolts-Water Pump Inlet Tube to Block 2.0L/2.4L | 12 | | 105 |
Scheme 1
Scheme 2
Scheme 3
Scheme 4
Scheme 5
Scheme 6
Scheme 7
Scheme 8
| 1 - POWER STEERING PUMP |
|---|
| 2 - ACCESSORY DRIVE BELT |
| 3 - GENERATOR |
| 4 - CRANKSHAFT PULLEY |
| 5 - LOWER IDLER PULLEY |
| 6 - CRANKSHAFT PULLEY |
| 7 - WATER PUMP PULLEY |
| 8 - ACCESSORY DRIVE BELT TENSIONER |
| 9 - UPPER IDLER PULLEY |
The accessory drive belt for all engines is a Poly-V type belt.
Scheme 9
The accessory drive belt for the 2.0L/2.4L, 3.5L gas engines and 2.0L Diesel engines drive the generator, A/C compressor, and power steering pump.
Scheme 10
| 1 - GENERATOR |
|---|
| 2 - IDLER/TENSIONER |
On the 2.7L engine, the accessory drive belt drives the generator and A/C compressor. The power steering pump is driven by a separate stretch-to-fit drive belt.
Scheme 11
| 1 - GENERATOR |
|---|
| 2 - IDLER PULLEY |
| 3 - POWER STEERING PUMP |
| 4 - A/C COMPRESSOR |
| 5 - CRANKSHAFT PULLEY |
| 6 - TENSIONER |
On the 3.5L engine, the accessory drive belt drives the power steering pump, the generator and the A/C compressor.
Accessory drive belt tension for all engines is maintained by a non-adjustable automatic drive belt tensioner.
Scheme 12
Scheme 12: ACCESSORY DRIVE BELT
| 1 - NORMAL CRACKS BELT OK |
|---|
| 2 - NOT NORMAL CRACKS REPLACE BELT |
When diagnosing accessory drive belts, small cracks (1) that run across ribbed surface of belt from rib to rib, are considered normal. These are not a reason to replace belt. However, cracks running along a rib (not across) are not normal. Any belt with cracks running along a rib must be replaced. Also replace belt if it has excessive wear, frayed cords or severe glazing.
| CONDITION | POSSIBLE CAUSES | CORRECTION |
|---|
| RIB CHUNKING (ONE OR MORE RIBS HAS SEPARATED FROM BELT BODY) | 1. Foreign objects imbedded in pulley grooves. | 1. Remove foreign objects from pulley grooves. Replace belt. |
| 2. Installation damage. | 2. Replace belt. |
| RIB OR BELT WEAR | 1. Pulley(s) misaligned. | 1. Align pulley(s). |
| 2. Abrasive environment. | 2. Clean pulley(s). Replace belt if necessary. |
| 3. Rusted pulley(s). | 3. Clean rust from pulley(s). |
| 4. Sharp or jagged pulley groove tips. | 4. Replace pulley. |
| 5. Rubber deteriorated. | 5. Replace belt. |
| LONGITUDINAL BELT CRACKING (CRACKS BETWEEN TWO RIBS) | 1. Belt has mis-tracked from pulley groove. | 1. Replace belt. |
| 2. Pulley groove tip has worn away rubber to tensile member. | 2. Replace belt. |
| BELT SLIPS | 1. Belt slipping because of insufficient tension. | 1. Replace automatic belt tensioner. |
| 2. Belt routed incorrectly. | 2. Verify belt routing. |
| 3. Incorrect belt. | 3. Replace belt. |
| 4. Belt or pulley subjected to substance (belt dressing, oil ethylene glycol) that has reduced friction. | 4. Replace belt and clean pulleys. |
| 5. Driven component bearing failure. | 5. Replace faulty component bearing. |
| 6. Belt glazed and hardened from heat and excessive slippage. | 6. Replace belt. |
| "GROOVE JUMPING" (BELT DOES NOT MAINTAIN CORRECT POSITION ON PULLEY) | 1. Belt tension either too high or too low. | 1. Replace automatic belt tensioner. |
| 2. Belt routed incorrectly. | 2. Verify belt routing. |
| 3. Incorrect belt. | 3. Replace belt. |
| 4. Pulley(s) not within design tolerance. | 4. Replace pulley(s). |
| 5. Foreign object(s) in grooves. | 5. Remove foreign objects from grooves. |
| 6. Pulley misalignment. | 6. Check and replace. |
| 7. Belt cord line is broken. | 7. Replace belt. |
| BELT BROKEN (NOTE: IDENTIFY AND CORRECT PROBLEM BEFORE NEW BELT IS INSTALLED) | 1. Excessive tension. | 1. Replace belt and automatic belt tensioner. |
| 2. Incorrect belt. | 2. Replace belt. |
| 3. Tensile member damaged during belt installation. | 3. Replace belt. |
| 4. Severe misalignment. | 4. Check and replace. |
| 5. Bracket, pulley, or bearing failure. | 5. Replace defective component and belt. |
| NOISE (OBJECTIONABLE SQUEAL, SQUEAK, OR RUMBLE IS HEARD OR FELT WHILE DRIVE BELT IS IN OPERATION) | 1. Belt slippage. | 1. Replace belt or automatic belt tensioner. |
| 2. Bearing noise. | 2. Locate and repair. |
| 3. Belt misalignment. | 3. Replace belt. |
| 4. Belt-to-pulley mismatch. | 4. Install correct belt. |
ACCESSORY DRIVE BELT DIAGNOSIS CHART
Scheme 13
Scheme 13: CHECKING ACCESSORY DRIVE BELT TENSION
| 1 - LOCATION 1 |
|---|
| 2 - LOCATION 2 |
| WARNING | Do not check belt tension with engine running. |
Scheme 14
- Connect tool 8371 to the scan tool following the instructions provided with tool.
- 2.7L Engine - Place end of microphone probe approximately 2.54 cm (1 in.) from belt at one of the belt center span locations (1 or 2). 1 - LOCATION 1 2 - LOCATION 2
- 3.5L Engine - Place end of microphone probe approximately 2.54 cm (1 in.) from belt at one of the belt center span locations (1 or 2).
- Pluck the belt a minimum of 3 times. (Use your finger or other suitable tool) The frequency of the belt in hertz (Hz) will display on scan tool screen. Refer to «ACCESSORY DRIVE BELT TENSION»(ref-305776-S42699909522008120200000) for belt tension specifications.
- If tension readings (Hz) fall outside of range, inspect accessory drive belt tensioner and power steering pump pulley.
