Last night I was working through the last (hopefully)
of the vacume leaks on the heater controls on my
73 GMC
I only have 2 vents that still seem uncontrolled
(really this is an improvement).
1) - The passengers vent does not provide air
however it is getting good vacume to it's door pot.
Looks like I will have to take it apart and find out
whether the door is siezed or the pot is bad.
2) - Neither in the manual or on my coach can I find any
control for the center dash vent. Is it really supposed
to be open regardless of whether the control is on
AC, Vent or heater?
TIA
Regards
Gary Zingle
1973 GMC 26 foot
of the vacume leaks on the heater controls on my
73 GMC
I only have 2 vents that still seem uncontrolled
(really this is an improvement).
1) - The passengers vent does not provide air
however it is getting good vacume to it's door pot.
Looks like I will have to take it apart and find out
whether the door is siezed or the pot is bad.
2) - Neither in the manual or on my coach can I find any
control for the center dash vent. Is it really supposed
to be open regardless of whether the control is on
AC, Vent or heater?
TIA
Regards
Gary Zingle
1973 GMC 26 foot
