Hi all,
I've seen several threads in this forum related to the issue I'm having (the best one here).
In short, my A/C and heat selector knob isn't working consistently. Sometimes I'm able to switch the selection and it'll take (and I'll feel a detent as I move the knob) while other times it'll spin freely, possibly setting on defrost.
I've checked all my vacuum lines for leaks in the engine bay and I can't see anything. At one point in the summer the vacuum line leaving the engine block was unseated and after fixing it did seem to help...but not for long.
Any ideas on what it could be? There is a video below that shows the situation. Air will stop blowing all together if I move it from a working detent. Also, I hear a fizzle sometimes from behind the dash if it's on a working setting (like defrost) and move to another setting.
Thanks for all the help in advance. This one is a bear with winter here.
VIDEO: https://photos.app.goo.gl/MQfBN7B62rDFkMVN6
-digitalarchitect
I've seen several threads in this forum related to the issue I'm having (the best one here).
In short, my A/C and heat selector knob isn't working consistently. Sometimes I'm able to switch the selection and it'll take (and I'll feel a detent as I move the knob) while other times it'll spin freely, possibly setting on defrost.
I've checked all my vacuum lines for leaks in the engine bay and I can't see anything. At one point in the summer the vacuum line leaving the engine block was unseated and after fixing it did seem to help...but not for long.
Any ideas on what it could be? There is a video below that shows the situation. Air will stop blowing all together if I move it from a working detent. Also, I hear a fizzle sometimes from behind the dash if it's on a working setting (like defrost) and move to another setting.
Thanks for all the help in advance. This one is a bear with winter here.
VIDEO: https://photos.app.goo.gl/MQfBN7B62rDFkMVN6
-digitalarchitect