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.

Thread Tools Search this Thread
Old 11-22-2007, 01:55 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, 02:02 PM   #2  
Junior Member
Join Date: Mar 2004
Location: Purgatory
Posts: 0
Thanks: 0
Thanked 0 Times in 0 Posts
harofreak00 is on a distinguished road

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
Boost Control Solenoid Maintenance and Boost Control Actuator Test for low Boost* Toddster Trouble shooting + Test Procedures 0 03-21-2009 06:24 PM
crazy gas guage lizzardjoe 1992-1999 11 10-31-2005 05:53 PM
Temperature Guage and Oil Guage stuck!!!!! Str8pimpin 1992-1999 4 10-13-2004 04:38 PM
Boost guage....What The ratmfan2118 1992-1999 12 02-08-2003 01:29 AM

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not 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 Off
Pingbacks are Off
Refbacks are Off

All times are GMT -4. The time now is 09:06 AM.

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 and affiliated sites.