Town Car V8-302 5.0L (1987)
Idle Speed Control Bypass Air (ISC-BPA) Valve: All Technical Service Bulletins
Engine - No Start/Hard Start In Freezing Temperatures
Article No.
91-11-5
05/30/91
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NO START/HARD START - 5.0L - BELOW FREEZING TEMPERATURES
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STALLS - 5.0L - BELOW FREEZING TEMPERATURES
FORD:
1986-88 THUNDERBIRD
1986-91 CROWN VICTORIA, MUSTANG
LINCOLN-MERCURY: 1986-88 COUGAR
1986-90 TOWN CAR
1986-91 GRAND MARQUIS
ISSUE:
Condensation may be drawn through the PCV hose that is connected to the throttle body above the idle bypass motor. The condensation may
drip and accumulate water on the ISC motor freezing the motor closed.
ACTION:
Reroute the PCV hose from the throttle body to the inlet side of the air cleaner. Refer to the following procedure for service details.
Figure 1
1.
Replace the nylon formed PCV tubing with 3/8" rubber fuel line (E1PZ-9324-A). Refer to Figure 1.
