C
Charlie
I have a 1990 740GL that has no air flow from the heater/ac vents. It
does not matter what setting I set the sliders for, no air comes out.
Hot or cold, Defrost or floor or face. Not even enough to move a
tissue.
The blower motor was making a ton of noise on speed 4, so I replaced
it, hoping that was the issue. No luck! It is however now allot
quieter.
On the passengers side of the heater box is a little panel that can
be removed, that appears to hold some sort of pre-heater. With this
panel off, the blower will push enough air out this hole to rustle a
newspaper in the back seat.
I can hear the vacuum hiss while moving the control levers, and the
vacuum supply going through the firewall is strong on the engine side.
I can also watch the 'actuator' on the upper passengers side of the
heater box move when the heater selector lever is moved from floor to
defrost.
Any pointers?
Charlie
does not matter what setting I set the sliders for, no air comes out.
Hot or cold, Defrost or floor or face. Not even enough to move a
tissue.
The blower motor was making a ton of noise on speed 4, so I replaced
it, hoping that was the issue. No luck! It is however now allot
quieter.
On the passengers side of the heater box is a little panel that can
be removed, that appears to hold some sort of pre-heater. With this
panel off, the blower will push enough air out this hole to rustle a
newspaper in the back seat.
I can hear the vacuum hiss while moving the control levers, and the
vacuum supply going through the firewall is strong on the engine side.
I can also watch the 'actuator' on the upper passengers side of the
heater box move when the heater selector lever is moved from floor to
defrost.
Any pointers?
Charlie