HELP!!! exhaust manifold glowing !!!
Thread Starter
Melting Slicks
Joined: Aug 2000
Posts: 2,175
Likes: 0
From: joyzee shaw
HELP!!! exhaust manifold glowing !!!
Out for a spin the other night and i could feel the car lose power. got worse and worse andthen i started to hear a clicking coming from the engine. I was doing about 65 at the time. Pull over to the side of the parkway open the hood and the exhuast manifolds are glowing red :eek: :eek: :eek: . I ran back into the car and shut it down. My coolant temp was at 195 and my oil temp was at 205. all levels were fine.
Waited about 5 minutes started it back up and it was fine. had better SOTP fell than it did before this happened. WTF
What could have cause this and how can i prevent it from happening again?
Waited about 5 minutes started it back up and it was fine. had better SOTP fell than it did before this happened. WTF
What could have cause this and how can i prevent it from happening again?
Melting Slicks
Joined: Jul 2001
Posts: 2,526
Likes: 0
From: Warrick County IN
CI 3-4-5-6-7-8-9-10 Veteran
Re: HELP!!! exhaust manifold glowing !!! (a851yy07)
Agree with the Catalytic converter. The insides do come apart and plug up the exhaust causing extreme backpressure and no power. Was there any rattling noises or just the click?
Pro
Joined: Jan 2002
Posts: 657
Likes: 1
From: Some where, I'm still looking. Texas
Re: HELP!!! exhaust manifold glowing !!! (a851yy07)
Check for a vacum leak which would cause a very lean condition. This would make your manifold glow and destroy the cats. downstream.
Le Mans Master
Joined: Nov 1999
Posts: 7,687
Likes: 2
From: San Antonio TX
Re: HELP!!! exhaust manifold glowing !!! (Da-Cajun)
Check for a vacum leak which would cause a very lean condition. This would make your manifold glow and destroy the cats. downstream.
Pro
Joined: Mar 1999
Posts: 532
Likes: 0
From: Cleveland Ohio
Re: HELP!!! exhaust manifold glowing !!! (a851yy07)
How about running retarded? Could be that the dist hold down loosened up or the like and you are running retarded i.e.: still burning after the exhaust valve opens. That turned out to be my problem once and the manifolds were also cherry red. Wouldn't you hear a "woooossssh" sound from the rear if the cats are plugged? Frank
Team Owner
Joined: Sep 2001
Posts: 62,160
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From: Athens AL
C7 of the Year - Unmodified Finalist 2021
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Re: HELP!!! exhaust manifold glowing !!! (Frank C)
sounds like a clogged cat, there have been numerous threads on this before, try running a search
Racer
Joined: Jan 2001
Posts: 277
Likes: 0
From: Cary, NC
Re: HELP!!! exhaust manifold glowing !!! (a851yy07)
I agree with the clogged cat(s) being the culprit. When my front ones went, they broke up inside and at throttle there was a clicking or rattling that was hard to pinpoint. It sounded like it was coming from inside the block due to the location of the pre cats just below. The first few days it was intermitent. Scared the crap out of me thinking it was coming from inside the block. Next I started to experienced a loss of power. All guages read normal...If you bang on the cat with your fist you should hear the vibration of the loose baffle or broken pieces inside. I hope you get it up and running soon. Good luck...Dave
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Safety Car
Joined: Dec 2000
Posts: 3,767
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From: Jacksonville Fl
Re: HELP!!! exhaust manifold glowing !!! (a851yy07)
Sounds like something went wrong. You may have melted you cat as a result ( it's very likely you did ) but the cat is not the cause of the problem.
This seems to be a very hot topic around here...so I'll just let you read for yourself.
http://forums.corvetteforum.com/zerothread?id=224055
This seems to be a very hot topic around here...so I'll just let you read for yourself.
http://forums.corvetteforum.com/zerothread?id=224055
