Had the car A/C work done (new evaporator, condenser, R134 upgrade) at a shop. Now the the blower motor works but no air. Not sure if its an actuator issue, but there’s something not right or missing in the engine bay. Let me know if anyone can spot the problems in the engine bay.
Assuming you mean the blower motor works and it is bringing air through the cabin vents properly, but the air isn't cool (it's not cooling properly)? Or do you mean you can hear the blower motor running, but there is no air coming into the cabin anywhere?
Fire it up, and turn on and off the controls and listen for a hiss behind the control panel. You may have a leaky vacuum hose to the controls which wouldn't allow the proper doors to open. Also, hard to tell from your picture, but vacuum canister should have 1 hose going in from the engine and 1 going out to the fire wall.
The common failure is air coming out of the heater outlets at the bottom. That indicates no vacuum to the climate control to switch air to the vents and defroster outlets. If no air is coming out anywhere, but the blower motor is operating, that means the blower wheel may not be turning, it might be stripped.
Looking at your picture closely, it looks like you are missing the hose going from the back of the carb to the vacuum canister.
Based on this image, sure looks like the larger of the two vacuum hoses is on the one in this picture, but not on the one in the subject vehicle.
Yup, theres some missing vacuum lines where the canister is. I hear the blower motor, but nothing at all, not even from the heater vents. When turning the AC switch to “Recirculate” the engine just stalls.
Here’s a closer look of the vacuum canister, its been like that since I bought the car with that vacuum hose missing. So that missing one I’m guessing goes to the back of the carb. I noticed the voltage regulator wasn’t connected as well when the car was worked on, so I reconnected that. There is a hissing sound at the back of the control panel as Roger mentioned, I need to take a look at that too.
Yeah, I did and showed them the sketchy work. They told me I need to take it to an AC specialist and that they’re just a restoration shop. So it looks like they moneyed around with it and said thats all they can do. I will have to work on it myself for the moment and figure out the issues. Most of the shops here have no idea how to work on these cars.
All the information you need to fix the issue is in the Buick Chassis Manual. I would start by removing the radio completely. That will give you access to the rear of the climate control panel. The switch on the right side has multiple vacuum lines. They may be unhooked or routed wrong or damaged. I find it odd that you hear a hissing behind the dash. That line you are missing to the vacuum canister provides ALL the vacuum for the system. There should be a vacuum line from the back of the Q-jet to that canister. That's a very simple fix. Then go from there.
Not behind the dash. There can be NO vacuum in the climate Control system unless it is hooked up in the engine compartment.
Large vacuum hose goes from the carb to canister. Small vacuum line goes from canister through fire wall to your heat/air controls. May have some of the lines switched around.
The large hose may just be routed inside and not Hooke to anything, if there’s no vacuum hooked to the canister from the carb he shouldn’t be getting any vacuum.
