low vac - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

Reply
 
 
 
Thread Tools Search this Thread
Old 10-02-2005, 04:47 AM   #1
Senior Member
Posts like a Camaro
Thread Starter
 
Join Date: Jan 2004
Location: Colorado Springs C.O.
Posts: 851
Thanks: 0
Thanked 0 Times in 0 Posts
duffer26 is on a distinguished road
Default low vac

well i was talking in chat and found that i have low vac imagin that with 13 mpg lol any how this is where the vac is at at idel
Name:  cc2255e5.jpg
Views: 0
Size:  22.6 KB

anny thoughts or hints allreddy did all the vac lines except the one for the map
duffer26 is offline   Reply With Quote
Old 10-02-2005, 11:54 AM   #2
BANNED
 
Join Date: Aug 2002
Posts: 0
Thanks: 0
Thanked 0 Times in 0 Posts
banned3800 is on a distinguished road
Default

I think thats totally normal under idle conditions... But I'll let one of the SC guys chime in.... At 13mpg I wouldn't be supprised if the O2 was dead...

Guys, Thoughts?

__________________
Best Car Insurance | Auto Protection Today | FREE Trade-In Quote
banned3800 is offline   Reply With Quote
Old 10-02-2005, 12:02 PM   #3
Junior Member
Posts like a Ricer Type-R
 
Join Date: Aug 2002
Posts: 10
Thanks: 0
Thanked 0 Times in 0 Posts
willwren is on a distinguished road
Default

Not out of the normal range at all. It can be temperature or moisture (rain and fog) dependent.

It CAN be a slight vacuum leak, but not normally.
willwren is offline   Reply With Quote
Old 10-02-2005, 12:10 PM   #4
DINOSAURUS BOOSTUS

Expert Gearhead
 
BillBoost37's Avatar
 
Join Date: Mar 2005
Location: Enfield, CT
Posts: 41,391
Thanks: 0
Thanked 0 Times in 0 Posts
BillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of light
Default

Having played with my SC a bit lately.. here'* some items I found (on 97)

Charcoal (evap) canister has a metal line follow it over the SC inlet to a connection piece of vac line.
The TB has a large vac connector for canister purge going into it.
Under the air box there are two lines going to the charcoal canister.
At the evap purge soleniod (92-95 on canister) (96-99) on back valve cover area.

My vac will flutter w/ac on or a little on startup idle but otherwise drops to -10 on both cars 95 and 97
BillBoost37 is offline   Reply With Quote
Old 10-02-2005, 05:54 PM   #5
Senior Member
Posts like a Camaro
Thread Starter
 
Join Date: Jan 2004
Location: Colorado Springs C.O.
Posts: 851
Thanks: 0
Thanked 0 Times in 0 Posts
duffer26 is on a distinguished road
Default

well all lines are good that is the first thing i went through on the car even befor i filed it up for the first time lol
duffer26 is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Shop vac this! MyLittleBlackBird Lounge 12 04-12-2006 09:35 AM
Fun on 3 wheels<---my vac.w/ pics TaylorD Lounge 13 06-23-2005 09:22 PM
Broke a vac line or? Chinski 1992-1999 9 01-02-2005 03:44 PM
Busted vac please help Red Baron 1992-1999 11 11-13-2003 04:54 PM
H/Vac air filter 2000 Silver SSEI 1992-1999 0 03-03-2003 11:17 PM


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 09:36 PM.


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.