Is my cat screwed?
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Joined: Oct 2001
Posts: 504
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From: reidsville,nc,usa
Car: 1989 Firebird Formula 350
Engine: 350 TPI
Transmission: 700R4
Axle/Gears: 9 Bolt Borg Warner 3.27 gears
Is my cat screwed?
I was coming home today and I had decided to hook up my scanner to check on stuff. I noticed my cat temp. was around 700*. At first, I did'nt think anything about it till I got home and noticed there was smoke coming from the cat's flange. Did this thing get too hot?! The car is a 3.1 V6 Camaro. The cat is factory and has been on for 18 YEARS! I have had the car for 15 years. I have no power at all for the last few months or so. I thought it might be smoke from inside the motor. But I can't see smoke making it's way from the engine all the way down the Y-pipes and into the cat just to come outta the flange. The car off and not running so I don't think the smoke was coming from the motor. Whattya think? New cat time?
Ken
Ken
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Joined: Oct 2008
Posts: 800
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From: Temple City, CA
Car: 1990 Camaro RS
Engine: V8 305 TBI
Transmission: W/C T5
Axle/Gears: 3.08
Re: Is my cat screwed?
Either the cat's clogged or you're timing is too advanced/fuel is too lean (which would cause high cat temps).
But the most probable cause is a clogged cat, which will explain the smoke (clogged cat) and the loss of power.
Your best bet is to get a new catalytic converter.
But the most probable cause is a clogged cat, which will explain the smoke (clogged cat) and the loss of power.
Your best bet is to get a new catalytic converter.
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Posts: 1,132
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From: Aloha, Oregon
Car: '91 Camaro Z28, '85 Camaro Z28
Engine: LB9, LB9
Transmission: T5, 700r4
Axle/Gears: Eaton 3.73 Posi, 3.23 Posi
Senior Member
Joined: Oct 2008
Posts: 800
Likes: 0
From: Temple City, CA
Car: 1990 Camaro RS
Engine: V8 305 TBI
Transmission: W/C T5
Axle/Gears: 3.08
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