2 problems - Page 2 - 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 06-01-2007, 02:32 PM   #11
Senior Member
Posts like a 4 Banger
Thread Starter
 
Join Date: Dec 2006
Location: kirksville missouri
Posts: 141
Thanks: 0
Thanked 0 Times in 0 Posts
tanner28 is on a distinguished road
Default

Quote:
Originally Posted by BillBoost37
Ok..that place has a scanner for OBD2, meanwhile..your car is the elusive OBD1.5 hybrid.

Well...meanwhile..
Check for vacuum leaks, battery cable corrosion and perform a throttle body cleaning..
the only thing in that list i would know how to do is check battery cables for corrosion... but as stated in first post, had them changed about 4 months ago or less
tanner28 is offline   Reply With Quote
Old 06-01-2007, 02:50 PM   #12
Senior Member
True Car Nut
 
Join Date: Oct 2005
Location: Central Florida
Posts: 7,030
Thanks: 0
Thanked 0 Times in 0 Posts
lash is on a distinguished road
Default

Regarding the scanner problem: Your '94 has an OBD2 connector under dash, which is why they were able to connect to it at all, but it has OBD1 programing. (the simplifed version). There are some people here on the club who have ACTRON CP9145 scanners with a special cable you can buy that adapts it to the '94-95 situation.

As to checking vacuum leaks:

First locate all the vacuum lines in your engine compartment. They are the thin hard plastic and/or metal lines that run throughout the compartment. They are a low pressure line, so the connectors are simple rubber push-in types. Follow the path of each line and make sure that none are disconnected (pulled loose). Also check to make sure that there are no small splits or cracks i the lines or (more likely) the rubber connectors.

Repairs on these are cheap and easy. Just buy the generic vacuum hose at your local parts store. It usually runs about $1.00 a foot or so.

If you don't see any obvious problems, use a can of Carb/Choke cleaner and spray it around all the lines while the car is running. If there is any change in the engine while you are spraying near a particular line, then you know where to look closer.

Throttle body cleaning has been covered here a number of times. Try a quick search on "Throttle Body Cleaning".

Also, even though you just had the battery cables changed a few months ago, it does not mean that corrosion could not have formed already or that you might have a loose connection. It doesn't hurt to check it out and costs nothing.
lash is offline   Reply With Quote
Old 06-01-2007, 02:53 PM   #13
Senior Member
Posts like a 4 Banger
Thread Starter
 
Join Date: Dec 2006
Location: kirksville missouri
Posts: 141
Thanks: 0
Thanked 0 Times in 0 Posts
tanner28 is on a distinguished road
Default

hehe thank you
tanner28 is offline   Reply With Quote
Old 06-01-2007, 02:55 PM   #14
Senior Member
True Car Nut
 
Join Date: Oct 2005
Location: Central Florida
Posts: 7,030
Thanks: 0
Thanked 0 Times in 0 Posts
lash is on a distinguished road
Default

Back with your easy answers again....

Here'* a TECHINFO article on TB cleaning:
Throttle Body Cleaning

And here'* a decent recent thread about it:
http://www.bonnevilleclub.com/forum/...+body+cleaning
lash is offline   Reply With Quote
Old 06-01-2007, 03:04 PM   #15
Senior Member
Posts like a 4 Banger
Thread Starter
 
Join Date: Dec 2006
Location: kirksville missouri
Posts: 141
Thanks: 0
Thanked 0 Times in 0 Posts
tanner28 is on a distinguished road
Default

Quote:
Originally Posted by lash
Back with your easy answers again....

Here'* a TECHINFO article on TB cleaning:
Throttle Body Cleaning

And here'* a decent recent thread about it:
http://www.bonnevilleclub.com/forum/...+body+cleaning
just looked at both of those....... and the techinfo would be nice if i knew what the things on there were and where to find them on car............... im 17 and never actually worked or been around people working on cars....... kinda wish i was a little kid now
tanner28 is offline   Reply With Quote
Old 06-01-2007, 03:20 PM   #16
Senior Member
True Car Nut
 
Join Date: Oct 2005
Location: Central Florida
Posts: 7,030
Thanks: 0
Thanked 0 Times in 0 Posts
lash is on a distinguished road
Default

That'* OK, we don't mind.

Here'* what your engine looks like under the engine cover, right?

Name:  94L27.jpg
Views: 48
Size:  84.0 KB

The Throttle Body is under that metal bracket on the right (driver'* side of the engine) and connects on the left to the large black plastic item in the center of the picture (called the plenum or Upper Intake Manifold). It also connects to the air intake hose (shown to the right and leaving the picture on the right.
lash is offline   Reply With Quote
Old 06-01-2007, 03:32 PM   #17
Senior Member
Posts like a 4 Banger
Thread Starter
 
Join Date: Dec 2006
Location: kirksville missouri
Posts: 141
Thanks: 0
Thanked 0 Times in 0 Posts
tanner28 is on a distinguished road
Default

k i think i got it......... earlier someone said check vacuum hoses............ well i have a cold air intake.... so it easier to see under there but there is a black cylinder that sorta has its own "hole" or "cubby"..... but the way a vacuum hose was described.... think there is one going to it that has an extremely bad (looks like a wire nut but rubbery) i cant think of the word.... but its rubbery ===== : vacuum hose 00000: rubbery thing i dont know is called \\ : wire that goes down into black cylinder looking thing


=======00000=
\\
"theblack cylinder"


this is the best i can describe it




well it is centered to the left so the whole half *** pictured doesnt work................. but the cyliner has numbers on it and says air
tanner28 is offline   Reply With Quote
Old 06-01-2007, 03:59 PM   #18
Senior Member
True Car Nut
 
Join Date: Oct 2005
Location: Central Florida
Posts: 7,030
Thanks: 0
Thanked 0 Times in 0 Posts
lash is on a distinguished road
Default

Name:  94L27b.jpg
Views: 74
Size:  12.1 KB

OK, the thing circled in yellow is the throttle body (under that bracket)

The yellow arrow points at one of many vacuum lines. They are small diameter.

The red arrow points to and EGR tube. This wasn't mentioned before, but is another potential source of vacuum leak. Carefully inspect this tube for breaks, cracks, or holes, especially underneath where it'* hard to see.

Does this help?

Note: compare locations to the larger image above for clarity.
lash is offline   Reply With Quote
Old 06-01-2007, 04:08 PM   #19
Senior Member
Posts like a 4 Banger
Thread Starter
 
Join Date: Dec 2006
Location: kirksville missouri
Posts: 141
Thanks: 0
Thanked 0 Times in 0 Posts
tanner28 is on a distinguished road
Default

okay i got it........... in your picture..... looking a the yellow circle....... looking at far left of the cirlce --->O on the inside..... the two tubes that run in a u shape and go back........... well it the top one........ i just followed it and it runs down to below the air filter box........ it has an extremely bad rubber connector at the end and the ones along the line are the best either

------------------------ edit--------------------------------------
its the bottom one of the two (not top) sorry
tanner28 is offline   Reply With Quote
Old 06-01-2007, 04:13 PM   #20
Senior Member
True Car Nut
 
Join Date: Oct 2005
Location: Central Florida
Posts: 7,030
Thanks: 0
Thanked 0 Times in 0 Posts
lash is on a distinguished road
Default

OK, those could certainly be one source of a problem.

If those rubber connectors are straight, as I think the are IIRC, the you can just replace them with a short cut piece of rubber vacuum line you get at the parts store as mentioned above. I personally replaced everyone of my rubber connectors at the same time, so as to avoid future issues. One foot of 7/64" and one foot of 9/64" rubber vacuum line was all I neede and still had a couple short pieces left.

Since yours is a '94 bring in a sample of each size to verify I.D. size before purchase.
lash is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
problems after problems samkivel 2000-2005 3 03-05-2008 01:14 PM
problems after problems samkivel 2000-2005 2 09-25-2007 01:54 PM
Problems Problems..... jbbiggs 1992-1999 10 11-12-2005 11:21 AM
Problems, Problems, Problems... swartlkk 2000-2005 2 11-04-2005 08:57 PM
problems, problems, problems big_boss2010 1992-1999 15 04-25-2004 09:05 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 09:20 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 Amazon.com and affiliated sites.