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1991 Mercury Grand Marquis LS 5.0L vents
Posted to Ford HVAC on 4/19/2003 8 Replies

Hello members,

This car has electronic temperature control system and the heater is not working. The heater core is working fine. Both inlet and outlet pipes are hot,but it blows cold air [...] conditioning is working [...] that be a blend door stuck on cold ...

8 Replies Received (View Replies)

  Related Documents & Media  1991 Mercury Grand Marquis LS

 
Message Closed w/FIX

car Vehicle Data

1991 Mercury Grand Marquis LS

VIN 2MECM75FXM
Engine5.0 L / 8 cyl / GAS
Trans4-speed Automatic
DeliveryFI
AffectedVents
ConditionsHeater Inop
Message Closed w/FIX

car Vehicle Data

1991 Mercury Grand Marquis LS

VIN 2MECM75FXM
Engine5.0 L / 8 cyl / GAS
Trans4-speed Automatic
DeliveryFI
AffectedVents
ConditionsHeater Inop