Exhaust Post your questions and suggestions about stock or aftermarket exhaust setups. Third Gen exhaust sound files and videos!

cataylic convertor gets cherry red please help

Thread Tools
 
Search this Thread
 
Old Jun 27, 2010 | 07:44 PM
  #1  
bswanson's Avatar
Thread Starter
Junior Member
 
Joined: Dec 2009
Posts: 2
Likes: 0
cataylic convertor gets cherry red please help

car has no power ,mists ,I have changed convertor twice ,oxygen sensor ,all above sensors and fuel pump on my 1990 camero rs v-6.can anyone help????
Reply
Old Jun 27, 2010 | 07:57 PM
  #2  
Tru2Chevy's Avatar
Member
 
Joined: Aug 2004
Posts: 206
Likes: 0
From: New Jersey
Car: 1987 Camaro
Engine: 400 sbc
Transmission: 700R4
Re: cataylic convertor gets cherry red please help

Getting any codes? Have you had someone hook a scanner up to it while it's running to see what's going on?

If not, get that done before you spend any more money throwing parts at it.

- Justin
Reply
Old Jun 29, 2010 | 03:31 PM
  #3  
PRMRD88GTA's Avatar
Junior Member
 
Joined: Feb 2009
Posts: 37
Likes: 0
From: Delaware City, DE
Car: 1988 Trans Am GTA
Engine: 89 Vette TPI 350
Transmission: 700R4
Axle/Gears: 3:73
Re: cataylic convertor gets cherry red please help

Someone help him out guys.
Reply
Old Jun 29, 2010 | 03:33 PM
  #4  
DIRTY JERZY's Avatar
Member
 
Joined: Feb 2010
Posts: 133
Likes: 0
From: New Jersey
Car: 89 formula 350 & 2001 ws6 ta
Engine: 350 tpi & ls1
Transmission: 700r4, t56
Axle/Gears: 9 bolt ? & 10 bolt 3:42
Re: cataylic convertor gets cherry red please help

Sounds like your running lean I had a v6 camaro think it was an 85 ran so lean it melted the manifold
Reply
Old Jun 29, 2010 | 03:35 PM
  #5  
Gumby's Avatar
Supreme Member
 
Joined: Oct 2001
Posts: 8,113
Likes: 6
From: NWOhioToledoArea
Car: 86-FireBird
Engine: -MPFI
Transmission: T5
Axle/Gears: 3:42
Re: cataylic convertor gets cherry red please help

Check the muffler, did the insides of it rot out n cause an internal blockage in it.........
Reply
Old Jun 29, 2010 | 03:50 PM
  #6  
Twin_Turbo's Avatar
Supreme Member
25 Year Member
iTrader: (25)
 
Joined: Jun 2000
Posts: 5,364
Likes: 51
From: Enschede, Netherlands
Car: 82 TA 87 IZ L98 88 IZ LB9 88 IZ L98
Engine: 5.7TBI 5,7TPI 5.0TPI, 5,7TPI
Transmission: T5, 700R4, T5, 700R4
Axle/Gears: 3.08, 3.27, 3.45, 3.27
Re: cataylic convertor gets cherry red please help

Originally Posted by DIRTY JERZY
Sounds like your running lean I had a v6 camaro think it was an 85 ran so lean it melted the manifold
exactly the opposite, a red hot glowing cat is caused by raw fuel burning in the cat con.
Reply
Old Jun 30, 2010 | 04:23 PM
  #7  
the solitaire's Avatar
Senior Member
 
Joined: Mar 2009
Posts: 505
Likes: 0
From: 47798 Germany
Car: '89 RS camaro 305 TBI
Engine: LO3
Transmission: 700R4
Axle/Gears: yep, has those too (stock)
Re: cataylic convertor gets cherry red please help

Twin_Turbo is correct.
A cat gets somewhat warmer then normal if the engine runs lean.
It gets significantly warmer when unspent fuel gets into the cat.

Take out sparkplugs and see if maybe one cylinder isn´t firing. Should be the easiest to start with and could very well be the cause.

Since you explain that you changed cat twice, the cat was good.
I do not expect the problem to be caused there.

If fuel got into the cat, it´s very well possible that after you find and fix your issue you´ll have to swap the cat again though.
Reply
Old Jul 1, 2010 | 09:59 AM
  #8  
Guest
Guest
 
Posts: n/a
Re: cataylic convertor gets cherry red please help

my thought is your converter internally gave pushing all the stuff from inside your converter into the exhaust and now is pluging your exhaust more then likely in the muffler cut the muffler off just in front of it then start the car see what happens if it runs good again change the mufflerrepost if no change we will go from there tie up the exhaust so you can go for a ride if you get pulled over for load exhaust explain to him the problem unless he is a complette d--- h--- he will be good with that sketter
Reply
Old Jul 1, 2010 | 10:02 AM
  #9  
Guest
Guest
 
Posts: n/a
Re: cataylic convertor gets cherry red please help

if the exhaust flow is blocked the cat will get red red red red red hot fact
Reply
Old Jul 1, 2010 | 10:04 AM
  #10  
Guest
Guest
 
Posts: n/a
Re: cataylic convertor gets cherry red please help

if you dont think so stuff a potato in your tail pipe and watch it for yourself sketter
Reply
Old Jul 1, 2010 | 09:07 PM
  #11  
bswanson's Avatar
Thread Starter
Junior Member
 
Joined: Dec 2009
Posts: 2
Likes: 0
Re: cataylic convertor gets cherry red please help

thankyou for info iwill try
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Linson
Auto Detailing and Appearance
28
Oct 24, 2025 02:00 PM
F-body-fan
Auto Detailing and Appearance
37
Jan 12, 2023 01:49 PM
HoosierinWA
Tech / General Engine
5
Oct 7, 2015 10:15 AM
mcfastestZ28
Interior
9
Oct 5, 2015 07:12 AM
Dragonsys
Engine/Drivetrain/Suspension Parts for Sale
2
Sep 25, 2015 03:51 PM




All times are GMT -5. The time now is 05:43 PM.