tbristol

I couldn't figure out where to put this, you can move it if need be. I have done a search and I learned a lot on the heating system but still cant figure mine out.

1970 cutlass convertible with factory air. The previous owner just ripped off the compressor and cut the hoses.

Problem: the blower motor works, However I do not get heat inside the cabin. I have vacuum to the vacuum canister and vacuum after the canister. I have a brand new water control valve. Both hoses going to the core are extremely hot. The temperature door flapper the one with the cable on it is working. I think my problem is the vacuum door. I don't hear no movement when changing heat on and off.

So? since I only need heat a few times during the season. Is there a way to get the vacuum flapper door to move temporarily? or can some one give me a solution to getting it to work properly. I'm somewhat of a larger guy and crawling under the dash is a bit of work. I have felt up where all the vacuum hoses hook into the control module on the dash. They all seem to be there I even felt the ones coming into the firewall and they are also all attached. Thanks guys you have always helped me in the past.

tru-blue 442

Sounds like you may have to inspect the
vaccume lines under the dash for the
problems. The easiest way for a big boy
or older boy, is to remove the front seat.
A flashlight and a hopefully GOOD ear will
help you find the problem. It is always good to
study some on the chassis service manual beforehand.
Good luck with it.