boost guage is crazy -really! - GM Forum - Buick, Cadillac, Olds, GMC & Pontiac chat

Forced Induction All questions and problems regarding Superchargers, Turbos, NOS, ZEX, intercoolers, water injection, etc.

boost guage is crazy -really!

Reply

 
 
 
Old 11-22-2007, 02:55 PM
  #1  
Senior Member
Posts like a Supercharger
Thread Starter
 
Join Date: Jan 2007
Location: Missouri
Posts: 186
Thanks: 0
Thanked 0 Times in 0 Posts
skregal is on a distinguished road
Default boost guage is crazy -really!

My boost guage in my '95 has a mind of it'* own. It is all over the place, dancing, jumping, pegging full, then showing nothing at all. The car has been running so bad lately (not at all sometimes), that I haven't paid any attention to the SC. I finally got the car running with a new PCM and I would like to start addressing the SC. I just finished changing all the vacuum lines.
I have a question about the open vacuum nipple on the BCS.

I have seen that others have this with the sponge on it, (mine has rotted off). What is this for?


The car runs, but it really doesn't run that good. Not much power.
The actuator works, I applied vacuum and tested it. Looking at the BCS now.
Sorry about the large size of the picture- my editing software is on my other computer.
skregal is offline  
Reply With Quote
Old 11-22-2007, 03:02 PM
  #2  
BANNED
 
Join Date: Mar 2004
Location: Purgatory
Posts: 0
Thanks: 0
Thanked 0 Times in 0 Posts
harofreak00 is on a distinguished road
Default

the sponge is a little air filter, it is not necessary to be there.

take the vac line off the bottom of that actuator (round thing), and go for a drive to test it. don't run it like this for long periods.
harofreak00 is offline  
Reply With Quote
 
 
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Toddster
Trouble shooting + Test Procedures
0
03-21-2009 07:24 PM
lizzardjoe
1992-1999
11
10-31-2005 06:53 PM
Str8pimpin
1992-1999
4
10-13-2004 05:38 PM
ratmfan2118
1992-1999
12
02-08-2003 02:29 AM


Thread Tools
Search this Thread
Quick Reply: boost guage is crazy -really!


Contact Us Archive Advertising Cookie Policy Privacy Statement Terms of Service

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.