Marquis V6-232 3.8L VIN 3 TBI (1985)
Heater Core: All Technical Service Bulletins
Heater Core - Noise/Drone
Article No. 85-9-35
NOISE/DRONE IN HEATER CORE - 3.8L ENGINE
FORD 1984-85 THUNDERBIRD, LTD, MUSTANG
LINCOLN-MERCURY 1984-85 COUGAR, MARQUIS, CAPRI
The alternator mounting bracket brace may contact the front clamp on the engine heater tube and hose assembly. This condition may transmit a drone
noise into the heater core. Use the following procedure to service this condition.
Figure 32 - Drone Noise Rectifying Procedure
Bend the heater tube down to obtain 1/8" clearance between the clamp and the alternator brace as shown in Figure 32. If a 1/8" clearance cannot be
obtained, install a 3/8" flat washer between the bracket and the brace.
NOTE:
Only the 1984 vehicles which have been serviced per TSB Article No. 85-1-18, will be equipped with an alternator brace. All 1985 vehicles
will have the alternator brace.
OTHER APPLICABLE ARTICLES: 85-1-18
WARRANTY STATUS: Reimbursable within the provisions of the Warranty and Policy Manual.
OPERATION: SP10151A85
TIME:
0.3 Hr. DLR. CODING: Basic Part No. 10W151 - Code: 56