blower motor/vacuum door question
Thread Starter
Pro
Joined: Jan 2007
Posts: 552
Likes: 0
From: Lincoln Ne.
blower motor/vacuum door question
It seems my vents dont blow too hard anymore. If i apply vaccum to the arm that opens/closes the vent/floor/defrost door it will blow very hard out of the vents. The vacuum line to the back of the intake is pluged in and not leaking as are the lines going under the battery to that vacuum reservoir and then to the inside of the car. Can anyone tell me what kind of vacuum they are pulling at the connection under the passenger side dash? It seems I may not be pulling enough vacuum to fully close the vent door but I don't really recall how they blew out the vent before. I have a VERY mild cam (CHEATR cam) so I'm sure Im pulling enough vacuum at the manifold. Any advice would be helpful.
Thanks
Dave
Thanks
Dave
Le Mans Master
Joined: May 2006
Posts: 5,987
Likes: 18
From: DuBois PA
St. Jude Donor '11-'12-'13-'14-'15
Trying pulling the fuse to the HVAC and re-installing it. Once power is returned to the system, the actuator doors will re-calibrate. That could be your problem, hope so anyway, that's an easy fix! 
If that doesn't work, pull your codes and post em...
If that doesn't work, pull your codes and post em...
Race Director
Joined: Dec 2002
Posts: 10,233
Likes: 21
From: Baltimore suburbs Maryland
I had the same issue, I "thought" everything was still connected but it turns out in the huge heap of cables under the battery, some acid had got onto it and broke the line! Fortunately it didnt ruin the harness though. I ran an entire new line and fixed the problem.
Navigator
Joined: Feb 2006
Posts: 9
Likes: 0
From: Fresno CA
Dave had the same issue with 1999 coupe turned out to be the check valve in front of the vacuum resevior was leaking..sprayed some soap on it and it was leaking bad.. 15.00 part from gm if I remember right.. doug
Thread Starter
Pro
Joined: Jan 2007
Posts: 552
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From: Lincoln Ne.
Dave
Thread Starter
Pro
Joined: Jan 2007
Posts: 552
Likes: 0
From: Lincoln Ne.
Dave
