69 RS hide away head lights (vacum testing) - Team Camaro Tech
Troubleshooting Diagnosing problems done here.

LinkBack Thread Tools Display Modes
post #1 of 4 (permalink) Old Jun 16th, 02, 05:37 PM Thread Starter
Join Date: May 2000
Posts: 63
How do you troubleshoot the actuators and the rest of the vacum lines correctly. Is there a order to follow? I have a hand operated vacum pump and tried but didnt really get any where. I would like to know how to tell if the actuators are still good then If I have enough vacum I could probabally assume the lines need replaced. The doors do move somewhat once in a while. I had alot of fluttering on the vacum gage at the manifold then it seemed to get steady at the "splitter" where the main line gets turned in to two. I had aprox. 10"of vacum at this point and by the time I get to the actuators it is 4 to 5".This was done with the lights on. Exactly how much vacum do you need to operate properly? I really want to get these things working Any help appreciated. Steve

69' R/S Lemans blue,deluxe interior,houndstooth, 406, 12 bolt.
R/S 350 is offline  
Sponsored Links
post #2 of 4 (permalink) Old Jun 17th, 02, 04:56 AM
Join Date: Feb 1999
Posts: 132
The best way to test the actuators is to do a blow test on each side. The easiest way to do this is to take the actuators out of the car. Push the actuator stem all the way in and blow on one of the ports. You should not get any air coming out of the other port unless the piston is moving and is exhausting the air that is above the piston. If no air comes out the second port reposition the piston by pulling the stem out to several locations and repeating the test. I found with my old actuators no matter how hard I blew the piston would not stroke and I always had leakage on the other port. With my new ones I would blow lightly with no leakage and when blown hard they would stroke all the way one way or another. If the actuators are working then I would check for leaks in your hoses or rust plugging up your lines giving you a restriction. This is a pretty simple sytem to figure out it just takes time and patience.
NORTHERN FRIEND is offline  
post #3 of 4 (permalink) Old Jun 17th, 02, 06:11 AM
Super Moderator
Bess-68's rule
Everett#2390's Avatar
Join Date: Sep 2000
Location: Va Beach VA
Posts: 31,620
One could rig up a 20-30 gal air tank and use an A/C vacuum pump to provide a vacuum source. Then use an air mattress nipple to go to each hose.

There are ways......

Everett 68/350/PG/11.90/115mph
Everett#2390 is offline  
post #4 of 4 (permalink) Old Jun 17th, 02, 07:54 AM Thread Starter
Join Date: May 2000
Posts: 63
Thanks,for the replys. Does anyone know how much vacum needs to be present at the actuators for proper operation? Thanks,Steve
R/S 350 is offline  
Sponsored Links

Quick Reply

Register Now

In order to be able to post messages on the Team Camaro Tech forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address.
NOTE we receive a lot of registrations with bad email addresses. IF you do not receive your confirmation email you will not be able to post. contact support and we will try and help.
Be sure you enter a valid email address and check your spam folder as well.

Email Address:


Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome