symptoms of a burned out cat?
07-12-03, 02:24 AM
#1
I R SAD PANDA W/O BAW
Thread Starter
symptoms of a burned out cat?
Info on the car: all stock 91 NA 73k original engine
Well I just came back from a 30 minute spirited drive. I drove the car easy the last mile home and pulled into my garage. After turning off the engine I heard popping sounds under the car that continued for a few minutes. I never noticed this after driving the car hard before. The sound appeared to be coming from under the seats and I assumed it was the catalytic converter. I remember hearing this popping sounds on my parents mazda mpv but I have never heard them on my car before. I sometimes hear them on other piston cars and was told that it was detonation or some other word similar to that of left over fuel. Is that true?
Are these signs of the cat starting to burn out?
By the way I did look under the car to see if the cat was glowing and it wasnt.
Sorry for the long post. Any help is greatly appreciated. This gives me a reason to look into an exhaust system... maybe the true duals of a catback system with a bonez high flo.
Sorry about the long post.
Well I just came back from a 30 minute spirited drive. I drove the car easy the last mile home and pulled into my garage. After turning off the engine I heard popping sounds under the car that continued for a few minutes. I never noticed this after driving the car hard before. The sound appeared to be coming from under the seats and I assumed it was the catalytic converter. I remember hearing this popping sounds on my parents mazda mpv but I have never heard them on my car before. I sometimes hear them on other piston cars and was told that it was detonation or some other word similar to that of left over fuel. Is that true?
Are these signs of the cat starting to burn out?
By the way I did look under the car to see if the cat was glowing and it wasnt.
Sorry for the long post. Any help is greatly appreciated. This gives me a reason to look into an exhaust system... maybe the true duals of a catback system with a bonez high flo.
Sorry about the long post.
Last edited by ilike2eatricers; 07-12-03 at 02:27 AM.
07-12-03, 02:36 AM
#3
I R SAD PANDA W/O BAW
Thread Starter
sounds logical but how do you explain that I have never heard it before? Maybe i was just paying extra attention today.
Can anybody confirm this or have any other ideas about what this may be?
Thanks for the quick reply vectorminds
Can anybody confirm this or have any other ideas about what this may be?
Thanks for the quick reply vectorminds
07-12-03, 02:46 AM
#4
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If the popping sounds are sounding like metal "pings" (such as if you flicked your finger against the exhaust pipe), then yes it does just sound like it's the heated metal contracting as it cools down, as vectormind stated.
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