1991 Oldsmobile Cutlass Supreme "under dash vacuum leaks" Questions

...under the dash, the heater and A/C control cables are attached to what must be the enclosure box. I'll need step by step as to what needs to be removed please. Thank You GJN Hello! Disconnect the ...

...under the dash and must be removed to gain access to the heater core. Procedures for replacing the heater core vary with the year, make, and model of car. It threfore necessary to consult the ...

...under the dash on the passengers side. Easy to get at. It's worth a try. If not that, you may have a bad computer, but check loose wires first. Let me know how you make out please. If that isn't the ...

under dash and under the hood. They may have been pulled loose accidentally or you may have had a naughty little mouse under your hood or even your dash gnawing away on your hoses...they love them for

...dash from under the hood. Listen under the dash board for a hissing noise to indicate that there is a vacuum leak in the dash. This system should be using vacuum from the engine to open and close the ...

...switch from vent face to defrost under load So you have a leak in the either the vacuum switch, the plastic tubing or the vacuum motor actuator. Time to dive under the dash and do some ...

...under dash do you hear push when switch them sometimes it is a plane old vacuum leak vacuum is generated under your engine compartment! anyhow i would start under dash then on word hope this

...under the dash. take a look under the hood and inspect all of the vacuum hoses, mainly the small colored hard plastic hoses. if your car also runs poorly that means you may have a leak in your engine ...

...under dash and engine begins to spudder. How to find vacuum leak? Possible vacuum leak. When I apply brake pedal there is a hissing air sound from under dash. I bled the brakes which had a lot of air ...

...under the dash More that likely the vacuum supply hose to your heat/ ac controls is leaking or, one of the vacuum motors is unhooked or ruptured. Use a small piece of hose, if you have any, start the ...