Problem with A/C system.
#1
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Problem with A/C system.
I noticed that when i driving, the A/C on the floor (feet) never seems to shut off. I do not have an automatic temperature control. I have the SE with mostly base. I wonder if a vacuum seal is broken somewhere.
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No it does not. Only the floor vents. And I know this for sure, because when I turn the temp control. It adjusts with the ****. Even though the system is in off position
#4
Look for a vacuum leak somewhere between the throttle body and the vacuum tank on the firewall. Turn the engine on and listen for a hissing sound. Your climate controls are probably not getting any vacuum.
I am assuming you can't get air out of the dashboard vents when it is set to them and the fan is on.
I am assuming you can't get air out of the dashboard vents when it is set to them and the fan is on.
#5
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Originally Posted by fuddyduddy121
Look for a vacuum leak somewhere between the throttle body and the vacuum tank on the firewall. Turn the engine on and listen for a hissing sound. Your climate controls are probably not getting any vacuum.
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I was told that this was normail too, but it does not seem like a normal thing for a car. Especially because it is in off, and I can adjust the temp control. The fact that it is on, means that I am losing a percentage of my HP.
#9
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Originally Posted by Glasuan
I was told that this was normail too, but it does not seem like a normal thing for a car. Especially because it is in off, and I can adjust the temp control. The fact that it is on, means that I am losing a percentage of my HP.
The vacuum system wouldn't affect the engine in normal operation, although if it was actually leaking big-time, that would be something else. (Some vacuum-operated parts such as certain EGR valves, like on the Buick/Olds 3.8L V6, are _designed_ to leak vacuum, so they won't operate at all unless they're on a steady vacuum draw.) Keep in mind also that when you want to turn off a vacuum-operated component, you actually have to do it by letting air _in_ somehow, so a _controlled_ leak in parts of the system is needed from time to time.
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So What you are saying is that even thought you have the ac OFF......air is still comming out from the floor vents?
As far as no air comming out of the middle vents..the cause of that could be a vacum line loose near the brake booster...in the firewall....look for a small line that is not attached to anything.!
As far as no air comming out of the middle vents..the cause of that could be a vacum line loose near the brake booster...in the firewall....look for a small line that is not attached to anything.!