Hello I have a 81 Monte Carlo that ive started using as a daily driver and I noticed when I use the heat or AC the air blows thru the windshield vent and not the dash vent. Where should I start?
A/C and Heat
- Thread starter LilSpann601
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I traced the 2 vac lines that come thru the firewall and they are broke off behind the wheelwell. Looks like a brown and a white vac line. Since they are broke off is it possible to bandaid it instead of running a new vac line all the way from the a/c control?
You may be able to splice the lines together,which shouldn't be too difficult... or go to your local junkyard and find another G-body car and harvest the vacuum lines out of it. At least you know what the remedy is. Personally, I'd opt to replace the two lengths of line, or hose.
Yes Steve, they can be dried out and brittle. Perhaps check out later cars and pull a few lines out of them...it's like doing bypass surgery..😱
looks like im going to cut the vac lines before they go into the rubber grommet then run some rubber vac lines....however I dont have a heater valve or that little ball the lines goes into.......if I put vac source on the brownish line...and cap off the white vac line...should that get air blowing thru the vents?
You can try that.. but if I were you, I'd replace the vacuum ball. I know in some later G-body cars, they eliminated the use of the vacuum ball/ canister.
Does the car have a/c?
Does the car have a/c?
Well, I'm thinking if you do go back to getting your a/c back in working order, you might also want to replace the heater valve.
As for replacing the condenser, you're also better off going with a new unit. Don't trust anything old and used.
The vacuum ball has a hose coming from the back of the carb or intake feeding it. Then there's a thinner plastic line coming from the ball thru the firewall to the HVAC control on the dash. In my case, it was a purple line.
A small hand held vacuum pump (brake bleeder) came in handy for testing the lines and blend door servos.
As for replacing the condenser, you're also better off going with a new unit. Don't trust anything old and used.
The vacuum ball has a hose coming from the back of the carb or intake feeding it. Then there's a thinner plastic line coming from the ball thru the firewall to the HVAC control on the dash. In my case, it was a purple line.
A small hand held vacuum pump (brake bleeder) came in handy for testing the lines and blend door servos.
OK. I was able to get the vacuum hoses fixed but now I dont know where to get the vacuum source from.............does it have to come directly from the intake manifold/ or can i tap in the the source my brakes use/ or a source on qudrajet carb?
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