Engine-Driven Accessory Noises Cadillac Escalade GMT800

Engine-Driven Accessory Noises

1. Belt Whipping An engine accessory drive belt, or belts could exhibit a whipping condition if a belt is deteriorating and deposits are building up on the underside of the belt.
2. Loose Mounting Brackets or Component Ground-Out Engine-driven accessories such as a generator, a power steering pump, or an air conditioning compressor could exhibit noise conditions due to either loose mounting brackets or due to related components of the system in a ground-out condition during certain operation of that accessory system.
3. Cold or Hot These accessories could exhibit noise conditions when cool which go away once they are fully warmed-up, or the opposite may be true.
4. Load on an Accessory Component These accessories could exhibit a noise condition while under a heavy load - perhaps when combined with a cool or fully warmed-up condition.
5. Bent or Misaligned Pulleys Bent or mis-aligned pulleys in one or more engine-driven accessory systems could contribute to a noise or vibration condition.
6. Fluid Level in Accessory Systems These accessories could exhibit a noise condition due to an abnormal amount of fluid contained in the system of which the accessory is a part.
7. An improper power steering fluid level could produce noises in the power steering system.
8. An improper air conditioning refrigerant level or an excessive amount of refrigerant oil could produce noises or possibly vibrations in the air conditioning system.
9. Incorrect Fluid Type in Accessory Systems These accessories could exhibit a noise condition due to the incorrect type of fluid contained in the system of which the accessory is a part.