what happens if your exhaust pipes leak air?? - Drive Accord Honda Forums

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Old 02-17-2010, 07:31 PM
8thGenInspire 8thGenInspire is offline
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what happens if your exhaust pipes leak air??

So I had my exhaust installed for about 2 weeks already and I noticed that when I start my car its a whole lot louder.

I'm not retarded I'm not talking about the exhaust part but the front of the car; the engine is a lot louder.

I also notice right after I start my car and start driving my car has a lot more "push" and it kinda feels like it stays at a higher RPM when I don't press on my gas. WTF?? Doesn't bother me too much just curious as to what is happening. is it too much back pressure or is it because my exhaust wasn't welded correctly.
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Old 02-17-2010, 08:05 PM
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Well, is your exhaust leaking like your subject line suggests? If it's been 2 weeks you should have checked by now. Have you checked for leaks? It's not hard to do. It's not unusual that shops don't really make sure that there are none based on my limited experience. The last 3 -4 times I've had exhaust work done there were leaks.
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Old 02-17-2010, 08:15 PM
8thGenInspire 8thGenInspire is offline
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idk if it is haha. how do you check? I should have made another thread title but I'm just curious as to what happens when it does leak air, from my problems above does it seem that it is?
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Old 02-18-2010, 06:35 AM
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Quote:
Originally Posted by 8thGenInspire View Post
how do you check?
You lay on your back and and feel around all the connecting points with your hand while the engine is running. Depending on your size and "wingspan" you might be able to do it without jacking up one side of your car. Either way, chock your wheels and if you have to jack it up use a jack stand. Start with your engine cold and check the front by your catalytic converter 1st since that's about the only part that gets hot enough to burn you or be uncomfortable. You didn't say what kind of exhaust you did. If it's all custom, you probably want to check around the welds too. What you describe could be a manifold leak. You wouldn't normally loosen the exhaust manifold to put a cat back system on, but it's possible your shop might have in order to get something to fit. If you think they might have, then check around the manifold. Again, start with the engine cold. It's hard to feel around the manifold. You might want to use a piece of paper to see if it flutters indicating a leak. Generally the biggest issue with an exhaust leak is safety. You could get carbon monoxide poisoning if enough exhaust makes it's way into the cabin. Good luck.
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Old 02-18-2010, 06:40 AM
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if gone uncheck, your car will leak plutonium which will leak thru the cracks on the streets and can cause a new ice age around the world which will then drop the temperature of the world down to -210F, after that the only living thing on the planet will be micro-bacteria who will eat away at everything and eventually the earth will warm up again and then a new species of humans will come back and find our remains, and the archeologist will go looking for what caused the ice age, and they will find your car, and they will conclude that since your not lowered and you were leaking air, you cause the new ice age.... SO GO CHECK IT OUT.
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Old 02-18-2010, 07:06 AM
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Exhaust pipes are supposed to leak air. That's what they are there for.
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Old 02-18-2010, 07:31 AM
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Your car stays in higher RPMs when you first start it is because it is warming up the engine....mine is usually around 1.8K @ startup, then it drops to 0.9K when warm.
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Old 02-18-2010, 08:58 AM
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Quote:
Originally Posted by RUS777 View Post
Your car stays in higher RPMs when you first start it is because it is warming up the engine....mine is usually around 1.8K @ startup, then it drops to 0.9K when warm.
yup ^ altho I also heard that the computer reads driving style? IDK if its tru but if i start the car and after warm up drive like a maniac the RPM's seem to hold before downshifting (AUTO TRANS) were as if I drive normal with no heavy acceleration the car is much less likely to hold the gears.
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Old 02-18-2010, 01:14 PM
8thGenInspire 8thGenInspire is offline
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alright cool thanks ypsibird. I will check later on today. My cuz said I was just being extremely paranoid.

I have a custom magnaflow exhaust and the exhaust shop just cut off my old muffler and welded the new one on. So I don't think my problem is with the converter.


LOL wow dennis always complaining about me being not lowered
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