Accessory Drive Belt - Squealing Noise

^ ACCESSORY DRIVE BELT - SQUEALS Article No. 87-5-31

^ NOISE - ACCESSORY DRIVE "V" BELT SQUEALS

LIGHT TRUCK 1985-87 E SERIES, F SERIES

ISSUE: Accessory drive "V" belt squeals on F Series and E-250/350 vehicles 8500 lbs. GVW with dual thermactors and a 5.8L 4V engine equipped with power steering may be caused by the design of the current production belt.

ACTION: To correct this, two new high profile "V" belts, E6TZ-8620-C and E6TZ- 8620-D, with an increased surface area and improved qualities less likely to stretch during normal service, are now available. Refer to the Truck Shop Manual for "V" belt installation and adjustment specifications.

NOTE: When installing a now "V" belt, a belt tension gauge should be used.

Refer to the following application chart for the proper "V" belt application.


ACCESSORY DRIVE "V" BELT APPLICATION CHART

Service Part No. Vehicle Application

E6TZ-8620-C * 1985-87 F-250/350 over 8500 lbs.
GVW with dual thermactors and 5.8L 4V engine - power steering and water pump drive.

E6TZ-8620-D * 1985-87 E-250/350 over 8500 lbs.
GVW with dual thermactors and 5.8L 4V engine - power steering and water pump drive.

C9PZ-8620-CP 1985-87 F Series and Bronco with
5.8L engine without A/C - power steering and water pump drive.

D9PZ-8620-P 1985-87 Econoline with 5.8L engine
without A/C - power steering and water pump drive.

D9PZ-8620-P 1985-87 F Series and Bronco with
5.8L engine and A/C (except F/B- 250/350 over 8500 lbs. GVW with A/C and dual thermactor) - power steering and water pump drive.

D9PZ-8620-U 1985-87 Econoline with 5.8L engine
and A/C (except E-250/350 over 8500 lbs. GVW with A/C and dual thermactor) - power steering and water pump drive.

* Now high profile "V" belts.

PART NUMBER PART NAME CLASS

E6TZ-8620-C V-Drive Belt B
E6TZ-8620-D V-Drive Belt B
C9PZ-8620-CP V-Drive Belt AM
D9PZ-8620-P V-Drive Belt AM
D9PZ-8620-U V-Drive Belt AQ

OTHER APPLICABLE ARTICLES: None
WARRANTY STATUS: "INFORMATION ONLY"