Cobalt SS Network

08-10 SS Turbocharged General Discussion Discuss the 2008 - 2009 Chevy Cobalt SS Turbocharged. On sale since the second quarter of 2008.

Reading boost while turned off

Thread Tools
 
Search this Thread
 
Old 03-09-2014, 08:43 PM
  #1  
New Member
Thread Starter
 
stevenwhaley89's Avatar
 
Join Date: 04-11-13
Location: Cheyenne, Wyoming
Posts: 41
Likes: 0
Received 0 Likes on 0 Posts
Reading boost while turned off
When my car is idling, the boost gauge reads 0psi. normal. when i turn my vehicle off and turn it to AC power, the boost gauge will load up and show about 1.5psi of boost. Even from a cold start in the mornings, i'll turn on the AC power and it shows boost pressure. is this normal?
stevenwhaley89 is offline  
Reply Like
Old 03-09-2014, 08:50 PM
  #2  
Senior Member
iTrader: (1)
 
kzak104's Avatar
 
Join Date: 03-18-12
Location: Langley, BC
Posts: 1,893
Likes: 0
Received 1 Like on 1 Post
When you car is idling it should be reading 18-20 hg of vacuum.
kzak104 is offline  
Reply Like
Old 03-09-2014, 09:18 PM
  #3  
Senior Member
iTrader: (10)
 
ItalianJoe1's Avatar
 
Join Date: 11-01-05
Location: Miami, FL
Posts: 12,485
Likes: 0
Received 60 Likes on 60 Posts
Sounds like a bad gauge if anything, what gauge?
ItalianJoe1 is offline  
Reply Like
Old 03-09-2014, 10:10 PM
  #4  
New Member
Thread Starter
 
stevenwhaley89's Avatar
 
Join Date: 04-11-13
Location: Cheyenne, Wyoming
Posts: 41
Likes: 0
Received 0 Likes on 0 Posts
I have one of those RPD's. and it's on the boost gauge where it will show about 1.5psi of boost pressure when my car is off
stevenwhaley89 is offline  
Reply Like
Old 03-09-2014, 10:27 PM
  #5  
Senior Member
iTrader: (1)
 
kzak104's Avatar
 
Join Date: 03-18-12
Location: Langley, BC
Posts: 1,893
Likes: 0
Received 1 Like on 1 Post
Oh. If you have the rpd then it doesn't show vacuum.

It's probably normal. Someone with it will probably chime in to confirm
kzak104 is offline  
Reply Like
Old 03-10-2014, 02:06 PM
  #6  
Member
 
KonnerTomlinson's Avatar
 
Join Date: 12-06-13
Location: Indianapolis
Posts: 241
Likes: 0
Received 0 Likes on 0 Posts
Mine shows 0.0 at idle and when powered on but engine off
KonnerTomlinson is offline  
Reply Like
Old 03-11-2014, 06:54 PM
  #7  
Senior Member
 
SSlobalt's Avatar
 
Join Date: 06-22-09
Location: Kathmandu
Posts: 5,989
Likes: 0
Received 6 Likes on 5 Posts
Tmap
SSlobalt is offline  
Reply Like
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Akron/Canton Cobalt Meet
06MetallicBalt
Mid East
9
08-17-2021 03:40 PM
New steering rack
Solaris99
08-10 SS Turbocharged General Discussion
28
03-15-2017 01:22 PM
Let down the cobalt community on this one.
RaginChopsuey
War Stories
16
10-27-2015 01:27 PM
2.2l heat sensor going in and out please help
jmelton327
Drivetrain
2
09-26-2015 10:04 PM
everytime i fill up my balt has trouble turning on
roth
Problems/Service/Maintenance
2
09-26-2015 12:16 PM
Back to Subforum
08-10 SS Turbocharged General Discussion
View Next Unread
yet another spark plug question




Advanced Search
Quick Reply: Reading boost while turned off


Reply Closed Thread Share

All times are GMT -4. The time now is 11:20 PM.