Tech / General Engine Is your car making a strange sound or won't start? Thinking of adding power with a new combination? Need other technical information or engine specific advice? Don't see another board for your problem? Post it here!
Sponsored by:
Sponsored by: CARiD

Removed cat converter now car smokes

Thread Tools
 
Search this Thread
 
Old Jul 16, 2011 | 09:34 PM
  #1  
1989 drop top's Avatar
Thread Starter
Junior Member
 
Joined: Jul 2011
Posts: 6
Likes: 0
Removed cat converter now car smokes

I have a 89 RS 305 TB with only 89,000 miles. I removed the cat converter and now my car smokes like a worn out school bus. All sensors checked out okay. I added a can of sea foam and it got worse. White smoke is rolling out the tail pipes. Please give any suggestions. Thank you!!
Reply
Old Jul 17, 2011 | 12:31 AM
  #2  
affliction1's Avatar
Member
 
Joined: Jun 2010
Posts: 338
Likes: 0
From: Florida
Car: 89 chevy camaro rs
Engine: 305
Transmission: 700r4
Re: Removed cat converter now car smokes

take video of it
black smoke=burning rich
white=coolant
blueish white=oil

Last edited by affliction1; Jul 17, 2011 at 12:31 AM. Reason: black smoke=burning rich
Reply
Old Jul 17, 2011 | 08:48 AM
  #3  
1989 drop top's Avatar
Thread Starter
Junior Member
 
Joined: Jul 2011
Posts: 6
Likes: 0
Re: Removed cat converter now car smokes

Its white smoke and the coolant makes since. when I first start it up the tail pipes are very wet. After it warms up they dry out but the smoke fogs up the rear bumper. What's causing it to do it? There is no water in the oil and Im not loosing coolant.
Reply
Old Jul 17, 2011 | 01:09 PM
  #4  
affliction1's Avatar
Member
 
Joined: Jun 2010
Posts: 338
Likes: 0
From: Florida
Car: 89 chevy camaro rs
Engine: 305
Transmission: 700r4
Re: Removed cat converter now car smokes

valve seals if its only on start up,what temp are you starting it at?cold?
Reply
Old Jul 17, 2011 | 01:26 PM
  #5  
1989 drop top's Avatar
Thread Starter
Junior Member
 
Joined: Jul 2011
Posts: 6
Likes: 0
Re: Removed cat converter now car smokes

Its all the time not just at start up. Its not the seals, it never has had a hint of smoke but as soon as I took off the converter BAM! it started. It makes no sense. I'm thinking about just pulling off all the smog junk since the converter is gone. I dont want to since the car has low miles but I'm not about to drive it like it is. Its got to be something simple, I just cant put my finger on it. If any one can help with suggestions I will be forever greatfull! Thanks for looking.
Reply
Old Jul 17, 2011 | 06:46 PM
  #6  
TreeFiddy's Avatar
Supreme Member
 
Joined: Jun 2005
Posts: 1,380
Likes: 6
From: Sydney, Australia
Car: '86 TA
Engine: '74 350
Transmission: 700r4
Axle/Gears: 2.77
Re: Removed cat converter now car smokes

Originally Posted by 1989 drop top
it never has had a hint of smoke but as soon as I took off the converter BAM! it started.
Hmmm. What could it be.
Reply
Old Jul 17, 2011 | 07:27 PM
  #7  
1989 drop top's Avatar
Thread Starter
Junior Member
 
Joined: Jul 2011
Posts: 6
Likes: 0
Re: Removed cat converter now car smokes

TreeFiddy, Thanks for you intrest but Im looking for REAL help.
Reply
Old Jul 17, 2011 | 07:44 PM
  #8  
TreeFiddy's Avatar
Supreme Member
 
Joined: Jun 2005
Posts: 1,380
Likes: 6
From: Sydney, Australia
Car: '86 TA
Engine: '74 350
Transmission: 700r4
Axle/Gears: 2.77
Re: Removed cat converter now car smokes

Cause and effect, just sayin!
Reply
Old Jul 18, 2011 | 12:10 AM
  #9  
affliction1's Avatar
Member
 
Joined: Jun 2010
Posts: 338
Likes: 0
From: Florida
Car: 89 chevy camaro rs
Engine: 305
Transmission: 700r4
Re: Removed cat converter now car smokes

take video n post it...i dont have cat either and mine doesnt smoke.well i dont have any smog or ecm crap either so...
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
1992 Trans Am
History / Originality
27
May 10, 2023 07:19 PM
TheExaminer
Cooling
26
Aug 26, 2015 04:59 PM
1992 Trans Am
Engine/Drivetrain/Suspension Parts for Sale
1
Aug 8, 2015 08:16 PM
3rdgenparts
Interior Parts for Sale
0
Aug 8, 2015 07:09 PM
drathaar907
TPI
0
Aug 6, 2015 04:20 PM




All times are GMT -5. The time now is 12:20 PM.