New 505As How do I fix a leaking sensor
Thread Starter
Instructor
Joined: Oct 2003
Posts: 196
Likes: 0
From: Plano Texas
New 505As How do I fix a leaking sensor
I had new 505As installed last Saturday. Today I noticed the right front tire was flat (2000 garage queen). I used Lowes #9 O-ring seals because John at CCW recommended a fatter O-ring than the GM part. Since the Lowes O-ring appeared to be fatter I decided to go with them. The other three tires are fine. Should I apply a little Vaseline on another new O-ring and try again? I put the others in dry but I thought a little lubricant might help the seal. Also, I torqued them to 106 inch pounds like everyone has recommended. Does anyone have any other advice? I'm puzzled that it is losing air. I thought I had done everything right.
Need help.
Need help.
Cherish your Hopes...
Joined: Feb 2002
Posts: 13,074
Likes: 236
From: West Palm Beach FL
Cruise-In VII Veteran
St. Jude Donor '05-'06-'07
Originally Posted by txslim
Are you sure it's the sensor? Could it be the tire or wheel?
...you may not get a stream of bubbles but you will get a lone bubble somewhere on the front or back near the rim or elsehwhere on the tire...
Le Mans Master
Joined: May 2004
Posts: 7,825
Likes: 0
From: Manassas VA
I have been having the same problem with the right rear tire on my '01. I found that the O-ring, when I put the aftermarket valve cap on, was pressing the valve stem to the side, and allowing air to escape slowly.
I removed the O-ring totally, and adjusted the valve stem until I could no longer hear air escaping.
I haven't had a problem since, and the car's been sitting for 2 weeks, except a quick drive around the block once a week and on weekends.
I removed the O-ring totally, and adjusted the valve stem until I could no longer hear air escaping.
I haven't had a problem since, and the car's been sitting for 2 weeks, except a quick drive around the block once a week and on weekends.
Safety Car
Joined: Jun 2004
Posts: 3,717
Likes: 0
From: Palmdale CA
St. Jude Donor '06
Originally Posted by wit2pz
I have been having the same problem with the right rear tire on my '01. I found that the O-ring, when I put the aftermarket valve cap on, was pressing the valve stem to the side, and allowing air to escape slowly.
I removed the O-ring totally, and adjusted the valve stem until I could no longer hear air escaping.
I haven't had a problem since, and the car's been sitting for 2 weeks, except a quick drive around the block once a week and on weekends.
I removed the O-ring totally, and adjusted the valve stem until I could no longer hear air escaping.
I haven't had a problem since, and the car's been sitting for 2 weeks, except a quick drive around the block once a week and on weekends.
I was having the same problem. Went to a slightly smaller o-ring and the problem was solved. 
Now a CTS-V Owner
Joined: Oct 2001
Posts: 1,675
Likes: 1
From: Central Ohio
CI 5-6-7 & 9 Veteran
St. Jude Donor '05-'06-'07-'08
Originally Posted by stuart
Get a trough and set the tire in the trough to be certain of the location of the leak...
...you may not get a stream of bubbles but you will get a lone bubble somewhere on the front or back near the rim or elsehwhere on the tire...
...you may not get a stream of bubbles but you will get a lone bubble somewhere on the front or back near the rim or elsehwhere on the tire...
Sounds like this might be your problem.
