questions about my new '92 sse - Page 3 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 06-30-2009, 06:01 PM   #21
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ok than unscrew that bolt and disconnect the two pieces. Now look at the vacuum hose 'nipples' are they collapsed?

Read this when you have time:
http://trialsnuts.com/ecc.pdf

check out the photos at the bottom of the article. Look at #10

Does what you see look anything like that when you have it a part?
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Old 06-30-2009, 06:11 PM   #22
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Here does it look like this when the connector is split a part once you remove the 7mm bolt?

Photo showing what the vacuum hose nipples should look like versus collapsed nipples:


And there should only be 5 hoses.
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Old 06-30-2009, 08:49 PM   #23
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sorry i was wrong here is what it looks like
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Old 06-30-2009, 10:13 PM   #24
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Ok you are very close to the correct location. Follow that connector to where it goes to...probably goes down and under your dashboard. That very connector controls all the moving actuators that work your HVAC system. And most importantly it controls the actuator that moves the air flow door!

So follow it to the other side of that connector and pay attention to the violet colored one.....

Good Job for even attempting to do this on your own!!!bs2
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Old 06-30-2009, 10:22 PM   #25
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Does the air you do have coming out from the vents even get very cold or very warm upon moving the temp control **** one way or the other?

And where does the airflow come out of...does it come out the location you select or is it stuck on heater/floor mode and defrost windshield mode??

Can you successfully make the air come from only the main vents blowing strait at you???

Lastly when you select the airflow direction, do you hear a slight hissing sound come from under or behind the dash????

Your answers will determine where and what you do from here.
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Old 06-30-2009, 10:24 PM   #26
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i did that already, the purple hose goes all the way to the fire wall after it goes through the connecter under the dash
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Old 06-30-2009, 10:27 PM   #27
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Ok...that vacuum hose supplies your 'vacuum feed' for the other hoses.
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Old 06-30-2009, 10:32 PM   #28
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have you split that connector you found under the dash?
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Old 06-30-2009, 10:38 PM   #29
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The Blue vacuum hose shown here is the one that controls the "Bi-level Valve/Vacuum Actuator" AKA Bi-Directional Actuator.

Another words.....this Vacuum hose (colored Blue) will supply the vacuum to open or close the airflow door.
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Old 06-30-2009, 10:43 PM   #30
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The light Green colored vacuum hose shown here is the one that controls the "A/C Defrost Valve vacuum Actuator"

Another words this Vacuum hose (colored light green ) works with your 'Air Speed ****'
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