PINPOINT TEST G92604p7

PINPOINT TEST G92604p7 : GENERATOR NOISY

G92604t37 : CHECK GENERATOR FOR SECURITY
1. INSPECT the generator fixings.

- Is the generator loose?

-> YES
TIGHTEN generator fixings. TEST the system for normal operation.

-> NO
GO to Pinpoint Test G92604t38.

G92604t38 : CHECK THE ACCESSORY DRIVE BELT
1. REMOVE and INSPECT the accessory drive belt.

- Is the accessory drive belt OK?

-> YES
GO to Pinpoint Test G92604t39.

-> NO
INSTALL a new accessory drive belt. TEST the system for normal operation.

G92604t39 : CHECK THE ACCESSORY DRIVE BELT TENSIONER
1. REMOVE and INSPECT the accessory drive belt tensioner.

- Is the accessory drive belt tensioner OK?

-> YES
GO to Pinpoint Test G92604t40.

-> NO
INSTALL a new accessory drive belt tensioner. TEST the system for normal operation.

G92604t40 : CHECK GENERATOR FOR MECHANICAL NOISE
1. ROTATE the generator pulley by hand.

- Does the generator rotor shaft rotate smoothly?

-> YES
For vehicles fitted with manual transmission GO to Pinpoint Test G92604t41.
For vehicles fitted with automatic transmission GO to Pinpoint Test G92604t42.

-> NO
INSTALL a new generator. TEST the system for normal operation.

G92604t41 : CHECK GENERATOR DRIVE PULLEY (VEHICLES FITTED WITH MANUAL TRANSMISSION)
1. ROTATE the generator pulley quickly by hand.
2. Stop the generator pulley from spinning by holding the pulley.

- Does the generator rotor shaft continue to rotate?

-> YES
GO to Pinpoint Test G92604t42.

-> NO
INSTALL a new generator. TEST the system for normal operation.

G92604t42 : CHECK THE ACCESSORY DRIVE BELT IDLER PULLEYS
1. ROTATE the accessory drive belt idler pulleys by hand.

- Do the accessory drive belt idler pulleys rotate smoothly?

-> YES
GO to Pinpoint Test G92604t43.

-> NO
INSTALL new accessory drive belt pulleys as necessary. TEST the system for normal operation.

G92604t43 : CHECK GENERATOR FOR ELECTRICAL NOISE
1. INSTALL the accessory drive belt.
2. START and RUN the engine at 1500 RPM. APPLY a high electrical load to the battery.

- Is the noise only heard with the high electrical load applied?

-> YES
GO to Pinpoint Test G92604t44.

-> NO
CHECK the air conditioning compressor. CHECK the power steering pump. TEST the system for normal operation.

G92604t44 : ELIMINATE THE GENERATOR AS THE CAUSE OF ELECTRICAL NOISE
1. REMOVE fuse 82 from the passenger compartment fuse box.
2. START and RUN the engine at 1500 RPM.

- Is the noise still present?

-> YES
CHECK the air conditioning compressor. CHECK the power steering pump. TEST the system for normal operation.

-> NO
INSTALL a new generator. TEST the system for normal operation.