Engine Cooling System - Cooling Fan Contacts Shroud
Fan Shroud: All Technical Service Bulletins
Engine Cooling System - Cooling Fan Contacts Shroud
30E324
1987 COMANCHE
JUNE 1987
ENGINES
Attention: Workshop, Parts Department
FAN-TO-SHROUD CONTACT
On some 1987 Comanche models with a 4.0L engine, the mechanical cooling fan may touch the shroud during hard acceleration. Noise may be heard
inside the vehicle under these conditions. Evidence of fan-to-shroud contact is indicated by scuff marks on the shroud.
Service correction involves replacing either the shroud, or the fan, shroud and radiator crossmember depending on the degree of fan contact.
SHROUD INSPECTION
Inspect the mechanical cooling fan shroud for scuff marks as follows:
FIGURE 1
FIGURE 2
^
If scuff marks are evident at both the 3 o'clock position (A) (Fig. 1) and the 12 o'clock position
(B)
(Fig. 2) or at the 12 o'clock position only, proceed to the Shroud-Fan-Radiator Crossmember Replacement procedure.
^
If scuff marks are only evident at the 3 o'clock position (A) (Fig. 1), proceed to the Shroud Replacement procedure.
SHROUD REPLACEMENT
1.
Raise and support the hood.
