Chrysler PT Cruiser. Manual - part 451

drive belts (Fig. 1). One belt drives the generator, the
other drives the power steering pump and air condi-
tioning compressor (if equipped). The power steering/
air conditioning belt is tensioned by an automatically
controlled belt tensioner. The generator belt is man-
ually tensioned using an adjusting bolt and a locking
nut.

Fig. 1 Accessory Drive Belts

1 - AUTOMATIC BELT TENSIONER
2 - POWER STEERING PUMP / A/C COMPRESSOR BELT
3 - GENERATOR BELT

ACCESSORY DRIVE - 2.0/2.4L DOHC

7 - 7

DIAGNOSIS AND TESTING

ACCESSORY DRIVE BELTS

CONDITION

POSSIBLE CAUSE

CORRECTION

BELT SLIPPAGE

1. Belt slipping because of
insufficient tension.

1. Retension generator belt.
Replace the power steering belt’s
automatic belt tensioner.

2. Belt excessively glazed or
hardened from heat and excessive
slippage.

2. Replace belt.

3. Incorrect belt.

3. Replace belt.

4. Driven component bearing
failure.

4. Replace faulty component.

5. Belt or pulley subjected to
substance (belt dressing, oil,
ethylene glycol) that has reduced
friction.

5. Replace belt and clean pulleys.

BELT NOISE (OBJECTIONABLE
SQUEAL, SQUEAK, OR RUMBLE)

1. Belt slippage.

1. Retension generator belt, replace
belt, or automatic belt tensioner.

2. Foreign material imbedded in
belt.

2. Replace belt.

3. Non-uniform belt.

3. Replace belt.

4. Misaligned pulley(s).

4. Align accessories.

5. Non-uniform groove or eccentric
pulley.

5. Replace pulley(s).

6. Bearing noise.

6. Locate and repair.

BELT ROLLED OVER IN GROOVE
OR BELT JUMPS OFF

1. Broken cord in belt.

1. Replace belt.

2. Belt tension too loose, or too
tight.

2. Retension generator belt.
Replace the power steering belt’s
automatic belt tensioner.

3. Misaligned pulleys.

3. Align accessories.

4. Non-uniform grooves or eccentric
pulley.

4. Replace pulley(s).

5. Foreign object(s) in grooves.

5. Remove foreign objects in
groove.

7 - 8

ACCESSORY DRIVE - 2.0/2.4L DOHC

DRIVE BELTS (Continued)

REMOVAL

POWER STEERING PUMP/AIR CONDITIONING
COMPRESSOR BELT

(1) Remove belt splash shield (Fig. 2).
(2) Using a wrench, rotate belt tensioner clockwise

(Fig. 3) until belt can be removed from power steer-
ing pump pulley. Gently, release spring tension on
tensioner.

(3) Remove belt (Fig. 4).

GENERATOR BELT

(1) Remove power steering pump/air conditioning

compressor drive belt.

(2) Loosen pivot bolt, then locking nut and adjust-

ing bolt (Fig. 5).

(3) Remove generator belt.

CLEANING

Clean all foreign debris from belt pulley grooves.

The belt pulleys must be free of oil, grease, and cool-
ants before installing the drive belt.

INSPECTION

New developments in belt technology allow the belt

to greatly increase its life expectancy. Unless the belt
exhibits one of the following conditions do not replace
the belt.

• Excessive wear

• Frayed cords

• Severe glazing
Poly-V Belt system may develop minor cracks

across the ribbed side (due to reverse bending). These
minor cracks are considered normal and acceptable.
Parallel cracks are not (Fig. 6).

NOTE: Do not use any type of belt dressing or
restorer on Poly-V Belts.

Fig. 2 Splash Shield

1 - RIGHT MOUNT BOLT ACCESS PLUG
2 - FASCIA
3 - SPLASH SHIELD
4 - CRANKSHAFT BOLT ACCESS PLUG

Fig. 3 Accessory Belt—Removing

1 - BOLT

ACCESSORY DRIVE - 2.0/2.4L DOHC

7 - 9

DRIVE BELTS (Continued)

Content .. 449 450 451 452 ..