Leaking exhaust? - 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 08-03-2005, 07:59 PM   #11
Senior Member
Posts like a Turbo
Thread Starter
 
Join Date: Jan 2005
Location: Pawtucket, RI
Posts: 333
Thanks: 0
Thanked 0 Times in 0 Posts
LuxuriesPremier is on a distinguished road
Default

Yes the car is sluggish until the boost kicks in just right thne it takes off quicker. The cat i never checked it after driving and my temps are always at around 180 to 200 never much higher. I never really hear rattling or maybe what i do hear from the engine is actually coming from the cat. How much does a good cat cost? since my cousin can install it for me.
LuxuriesPremier is offline   Reply With Quote
Old 08-03-2005, 08:01 PM   #12
Senior Member
Posts like a Turbo
Thread Starter
 
Join Date: Jan 2005
Location: Pawtucket, RI
Posts: 333
Thanks: 0
Thanked 0 Times in 0 Posts
LuxuriesPremier is on a distinguished road
Default

lol ill record the sound i hear tonight and the pros can tell me if it is or not. Would a bad cat explain bad mileage and shitty performance off the line?
LuxuriesPremier is offline   Reply With Quote
Old 08-03-2005, 08:56 PM   #13
Junior Member
 
Join Date: Mar 2004
Location: Purgatory
Posts: 0
Thanks: 0
Thanked 0 Times in 0 Posts
harofreak00 is on a distinguished road
Default

im putting money on the clugged cat as told already, or a bad dount gasket between the header and the exhaust pipe...
harofreak00 is offline   Reply With Quote
Old 08-03-2005, 09:02 PM   #14
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

A bad cat is the same as plugging the tailpipe in most cases. You have trouble pushing exhaust out. So it takes more fuel to do it.
BillBoost37 is offline   Reply With Quote
Old 08-03-2005, 10:23 PM   #15
Senior Member
True Car Nut
 
Join Date: Aug 2004
Location: The South
Posts: 3,281
Thanks: 0
Thanked 0 Times in 0 Posts
Lowrider0308 is on a distinguished road
Default

like i said, after you run it some, and actually get the rpm'* up, and the engine up to temp, look under the cat and see if it is glowing.
Lowrider0308 is offline   Reply With Quote
Old 08-04-2005, 01:17 AM   #16
Senior Member
Posts like a Turbo
Thread Starter
 
Join Date: Jan 2005
Location: Pawtucket, RI
Posts: 333
Thanks: 0
Thanked 0 Times in 0 Posts
LuxuriesPremier is on a distinguished road
Default

Wouldn't i notice a glowing piece of metal lol??? i mean how hott does the cat get if ts malfunctioning. I also do smell burnign at times whe ni get otu of the car idk if thats normal.
LuxuriesPremier is offline   Reply With Quote
Old 08-04-2005, 01:20 AM   #17
Senior Member
True Car Nut
 
Join Date: Aug 2004
Location: The South
Posts: 3,281
Thanks: 0
Thanked 0 Times in 0 Posts
Lowrider0308 is on a distinguished road
Default

Quote:
Originally Posted by LuxuriesPremier
Wouldn't i notice a glowing piece of metal lol??? i mean how hott does the cat get if ts malfunctioning. I also do smell burnign at times whe ni get otu of the car idk if thats normal.
very hot...also, you have to look under the car to see the cat, so dont be so sure lol
Lowrider0308 is offline   Reply With Quote
Old 08-04-2005, 02:07 AM   #18
Senior Member
Posts like a Turbo
Thread Starter
 
Join Date: Jan 2005
Location: Pawtucket, RI
Posts: 333
Thanks: 0
Thanked 0 Times in 0 Posts
LuxuriesPremier is on a distinguished road
Default

lol ok cool ill check tommrow morning after my long trek to work in the 90 degree weather
LuxuriesPremier is offline   Reply With Quote
Old 08-04-2005, 02:17 AM   #19
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

Kick the cat and listen for rattles. Inspect your plugs, they can tell a story. Check your tire pressure.

My 95 just got 18mpg during WCBF, and you know how we were driving, not just track time either.
willwren is offline   Reply With Quote
Old 08-04-2005, 08:53 PM   #20
Senior Member
Posts like a Turbo
Thread Starter
 
Join Date: Jan 2005
Location: Pawtucket, RI
Posts: 333
Thanks: 0
Thanked 0 Times in 0 Posts
LuxuriesPremier is on a distinguished road
Default

So the plugs should look dry right not wet or white. If there good
kcik the cat if it rattles it is no good ? or is it just loose or something where u can fix that without buying a new one. I looked under the car today and it wasnt glowing ....
LuxuriesPremier is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
NO POWER, Red hot exhaust mainfolds, NOT CLOGGED EXHAUST iwin12 1992-1999 2 11-30-2007 10:24 AM
Exhaust Manifold leaking zuluhead 2000-2005 9 12-02-2005 03:44 PM
Exhaust Question : Headers & Exhaust Charlie Performance, Brainstorming & Tuning 29 08-09-2004 11:03 PM
Transmission leaking Hojekang 1992-1999 1 01-04-2003 02:13 PM
Leaking Gas...Not sure which one is the problem Proj_SSE 1992-1999 7 11-10-2002 12:22 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 03:11 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.