Dash heater / vent / defroster
I have a 94 winnebago with a chevy engine. The GM dash control for the heater won't work. The fan changes speeds, the cool/heat slide lever works, but the push buttons don't change the airflow from de...
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Scott, great explanation. I had it how it worked mostly figured out. I was assuming the black balls were reservoirs. I found the vacuum controlled actuators also.
I'm hoping when I remove the doghouse cover, I will find a melted vacuum line or something obvious.
If I pick up a hand held vacuum pump, and pulled a vacuum on one of the supply lines to the actuator, it "should" open or close the flap, right?
One of the black balls under the hood, has a normal vac line coming off of it and then there is a real thin line only a foot long or so. Is that normal?
Thanks for the AWESOME help!
I'm hoping when I remove the doghouse cover, I will find a melted vacuum line or something obvious.
If I pick up a hand held vacuum pump, and pulled a vacuum on one of the supply lines to the actuator, it "should" open or close the flap, right?
One of the black balls under the hood, has a normal vac line coming off of it and then there is a real thin line only a foot long or so. Is that normal?
Thanks for the AWESOME help!
