Drive Belt — Liberty Service Manual

Parts

PartSerpentine Belt

ManufacturerCHY

OEM part #5135746AA

Price$70.85

Labor

Replace — Serpentine Belt0.4 hr

Warranty 0.0 hrSkill C

Procedures

Serpentine Accessory Drive Belt - Removal3 steps

△ CAUTION

Do not let tensioner arm snap back to the free arm position, severe damage may occur to the tensioner.

Disconnect negative battery cable.
Remove combination washer reservoir/coolant recovery container Coolant Recovery Bottle - Removal.
Rotate belt tensioner (6) until it contacts its stop. Remove belt, then slowly rotate the tensioner into the free arm position.

Serpentine Accessory Drive Belt - Installation4 steps

△ CAUTION

When installing the accessory drive belt, the belt MUST be routed correctly. If not, the engine may overheat due to the water pump rotating in the wrong direction.

Check condition of all pulleys.
Install new belt. Route the belt around all pulleys except the idler pulley. Rotate the tensioner arm (1) until it contacts its stop position. Route the belt around the idler and slowly let the tensioner rotate into the belt. Make sure the belt is seated onto all pulleys.
With the drive belt installed, inspect the belt wear indicator. On 3.7L Engines the gap between the tang and the housing stop (measurement A) must not exceed 24 mm (0.94 inches).
Install combination washer reservoir/coolant recovery container Coolant Recovery Bottle - Installation.

Drive Belt: Testing and Inspectionreference

ACCESSORY DRIVE BELT When diagnosing serpentine 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. SERPENTINE DRIVE BELT DIAGNOSIS CHART

Factory service manual

From the 2008 KK factory manual — descriptions, specs, torque & procedures for this part.

BELT-ACCESSORY DRIVE.

Add coolant to radiator to bring level to within 6.3 mm (1/4 in) of top of thermostat housing.

CAUTION: Avoid overheating. Do not operate engine for an excessive period of time. Open draincock immediately after test to eliminate boil over.

Start engine and accelerate rapidly three times, to approximately 3000 RPM while observing coolant. If internal engine combustion gases are leaking into cooling system, bubbles will appear in coolant. If bubbles do not appear, internal combustion gas leakage is not present.

BELT-ACCESSORY DRIVE📷 1

Description

The accessory drive belt is a serpentine type belt. Satisfactory performance of these belts depends on belt condition and proper belt tension.

ACCESSORY DRIVE BELT📷 1

1 - NORMAL CRACKS BELT OK 2 - NOT NORMAL CRACKS REPLACE BELT

When diagnosing serpentine 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.

REMOVAL-2.8L DIESEL📷 3

1 - WITH A/C 2 - WITHOUT A/C

CAUTION: Do not let tensioner arm snap back to the freearm position, severe damage may occur to the tensioner.

1. Disconnect negative battery cable.

2. Rotate the belt tensioner (1) until the position locking tabs (3 and 4) line up.

3. Install a drift into the belt tensioner (1) at position 2.

4. Remove the accessory drive belt (1).

REMOVAL-3.7L📷 2

1 - GENERATOR PULLEY 2 - ACCESSORY DRIVE BELT 3 - POWER STEERING PUMP PULLEY 4 - CRANKSHAFT PULLEY 5 - IDLER PULLEY 6 - TENSIONER 7 - A/C COMPRESSOR PULLEY 8 - WATER PUMP PULLEY

CAUTION: Do not let tensioner arm snap back to the freearm position, severe damage may occur to the tensioner.

1. Disconnect negative battery cable. 2. Remove combination washer reservoir/coolant recovery container. See REMOVAL. 3. Rotate belt tensioner (6) until it contacts its stop. Remove belt, then slowly rotate the tensioner into the freearm position.

REMOVAL-4.0L📷 1

1 - GENERATOR 2 - IDLER PULLEY 3 - WATER PUMP PULLEY 4 - CRANKSHAFT PULLEY 5 - ACCESSORY DRIVE BELT TENSIONER 6 - A/C COMPRESSOR 7 - ACCESSORY DRIVE BELT

  1.   Remove combination coolant recovery/washer reservoir. See REMOVAL.
  2.   Insert a suitable square drive ratchet into the square hole on belt tensioner arm.
  3.   Rotate accessory drive belt tensioner clockwise to release belt tension.
  4.   Remove accessory drive belt.

Cleaning

Clean all foreign debris from belt pulley grooves. The belt pulleys must be free of oil, grease, and coolants before installing the drive belt.

INSTALLATION-2.8L DIESEL📷 4

1 - WITH A/C 2 - WITHOUT A/C

1. Check condition of all pulleys.

CAUTION: When installing the accessory drive belt, the belt MUST be routed correctly. If not, the engine may overheat due to the water pump rotating in the wrong direction.

2. Install accessory drive belt. Route the belt around all pulleys (1 or 2) except the idler pulley.

3. Rotate the tensioner arm until it contacts its stop position. Route the belt around the idler and slowly let the tensioner rotate into the belt. Make sure the belt is seated onto all pulleys.

4. Remove the drift from the belt tensioner.

INSTALLATION-3.7L📷 1

1 - AUTOMATIC TENSIONER ASSEMBLY

1. Check condition of all pulleys.

CAUTION: When installing the accessory drive belt, the belt MUST be routed correctly. If not, the engine may overheat due to the water pump rotating in the wrong direction.

2. Install new belt. Route the belt around all pulleys except the idler pulley. Rotate the tensioner arm (1) until it contacts its stop position. Route the belt around the idler and slowly let the tensioner rotate into the belt. Make sure the belt is seated onto all pulleys. 3. With the drive belt installed, inspect the belt wear indicator. On 3.7L Engines the gap between the tang

and the housing stop (measurement A) must not exceed 24 mm (0.94 inches). 4. Install combination washer reservoir/coolant recovery container. See INSTALLATION.

INSTALLATION-4.0L📷 1

1 - GENERATOR 2 - IDLER PULLEY 3 - WATER PUMP PULLEY 4 - CRANKSHAFT PULLEY 5 - ACCESSORY DRIVE BELT TENSIONER 6 - A/C COMPRESSOR 7 - ACCESSORY DRIVE BELT

NOTE: When installing accessory drive belt onto pulleys, make sure that belt is properly routed and all V-grooves make proper contact with pulleys.

1. Rotate tensioner clockwise and position accessory drive belt over all pulleys. 2. Gently release tensioner. 3. Install combination coolant recovery/washer reservoir. See INSTALLATION.

BELTS-DRIVE-POWER STEERING📷 2

Removal

1 - POWER STEERING BELT 2 - POWER STEERING PULLEY 3 - ACCESS HOLE 4 - CRANKSHAFT PULLEY

Remove accessory drive belt. See BELT-ACCESSORY DRIVE.

Position suitable tool between power steering belt (1) and power steering pulley (2) at the top of the

pulley.

Use a socket and ratchet to rotate the crankshaft clockwise.

While rotating the crankshaft clockwise, walk the power steering belt (1) off of the power steering pulley

(2).

Installation

1 - POWER STEERING BELT 2 - POWER STEERING PULLEY 3 - ACCESS HOLE 4 - CRANKSHAFT PULLEY

Position power steering belt (1) on crankshaft pulley (4). Make sure belt is fully seated in crankshaft

pulley grooves.

Position top of power steering belt on the top of the power steering pulley (2).

NOTE

Use only wire ties with nylon locks, not metal.

Working from the back side of the power steering pulley (2) , insert a nylon wire tie, 7.75X1/8x.0.050 in,

through one of the access holes (3) in the pulley.

Tighten the wire tie to hold the drive belt in position.

While holding the drive belt to make sure it stays in position, slowly rotate the engine clockwise.

Once the belt is in position on the pulley, continue rotating the engine until the wire tie snaps.

Remove the wire tie from the vehicle.

TENSIONER-ACCESSORY DRIVE BELT