Vacume leak to the Airmix Actuator - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 04-07-2006, 04:08 PM   #1
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Default Vacume leak to the Airmix Actuator

OK, so i get in the car on this warm summer day, crank the A/C on Max (i have the 3 **** style) and I hear air come out of the defrost vents....and i'm like oh boy. I come home, and open the hood. I hear a major vacume leak, as I hear it sucking, but I dont know where its at, and I dont know which vacume line goes to the Airmix door actuator. Can someone please post a picture of what lines to check out on a 1993 L27?

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Andrew
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Old 04-07-2006, 05:45 PM   #2
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Cant you just follow all your vac lines with soapy water,if you hear it in engine compartment it probably isnt the line going to HVAC.On my 90 sse at passenger firewall a black line goes in to behind dash and connects to a purple line.Just follow all your vac lines in engine compart especially the ones connected to the black box by your master cylinder they sometomes pop off.(assuming like my 90sse)
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Old 04-08-2006, 01:44 AM   #3
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The leak that you hear is more then likely coming from the main vacuum line going into the car. This line is if i remember right, right next to the wiper motor. Drivers side of the car almost in the middle of the firewall.

Good luck,
Sellncars
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Old 04-08-2006, 04:28 PM   #4
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thanks guys...i found it a few minutes after the first post, but I wasnt able to post until today. It was the line that goes into the firewall right under the fusebox in the engine bay. My A/C didnt work till I restarted the car, probably because it was blowing air out the defrost and not across the condenser. thanks for the help.
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