Bronco Full Size L6-300 4.9L (1987)
Drive Belt: All Technical Service Bulletins
Drive Belt - Noise/Squealing
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ACCESSORY DRIVE BELT - 4.9L - "SQUEAL" NOISE
Article No.
87-15-9
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NOISE - "SQUEAL" - 4.9L - ACCESSORY DRIVE BELT
LIGHT TRUCK:
1987 F SERIES, BRONCO, ECONOLINE
ISSUE:
Accessory drive belt squeal during engine start-up on 4.9L EFI engines with 70 or 100 amp alternators may be caused by a weak, automatic
belt tensioner.
ACTION:
To correct this, install a new improved tensioner (E7TZ-6B209-F) which has a stronger spring. Refer to the 1987 Light Truck Shop Manual,
Volume B, Section 27-06 for service procedure.
PART NUMBER
PART NAME
CLASS
E7TZ-6B209-F
Automatic Belt Tensioner
C
OTHER APPLICABLE ARTICLES: None
WARRANTY STATUS: Reimbursable within the provisions of the Warranty and Policy Manual
OPERATION: SP871509A
TIME:
0.3 Hr. - F Series, Bronco 0.4 Hr. - Econoline DLR. CODING: Basic Part No. 6B209 - Code: 63
