Help Identify Engine noise/rattle/click

Su37su · 11-13-2017, 06:22 PM

I've been hearing a weird noise coming from under the car, sounds like it's coming from the driver side and I'm not sure if it's normal. I think it might be from the exhaust pipe rubbing against something but I'm not sure.
Skip to 17 sec mark for sound.

deansbimmer · 11-13-2017, 07:13 PM

Sounds like an exhaust leak from what I can hear in the video...

///M Power-Belgium · 11-13-2017, 07:58 PM

Quote:

Originally Posted by deansbimmer

Sounds like an exhaust leak from what I can hear in the video...

Indeed ..

Su37su · 11-13-2017, 08:06 PM

doesn't the car have a sensor for such leaks?
I'll check for leaks this weekend.

deansbimmer · 11-14-2017, 07:13 AM

Quote:

Originally Posted by Su37su

doesn't the car have a sensor for such leaks?
I'll check for leaks this weekend.

There is no sensor for exhaust leaks. This is very common. check for leaks at the header flanges at the head, and at the collectors.

Su37su · 11-14-2017, 08:10 AM

The car has so many sensors that I thought it has one for exhaust leak.
I'll check everything this weekend. thanks.

Shamza · 11-14-2017, 09:44 AM

Quote:

Originally Posted by Su37su

The car has so many sensors that I thought it has one for exhaust leak.
I'll check everything this weekend. thanks.

Unless air was getting in the system before/at the primary/secondary lambda sensors, it wouldn't throw anything. Either the gasket has failed where the mid section bolts to the manifold or you have a hole.

Scrippy · 12-06-2017, 11:41 PM

Quote:

Originally Posted by Shamza

Quote:

Originally Posted by Su37su

The car has so many sensors that I thought it has one for exhaust leak.
I'll check everything this weekend. thanks.

Unless air was getting in the system before/at the primary/secondary lambda sensors, it wouldn't throw anything. Either the gasket has failed where the mid section bolts to the manifold or you have a hole.

I agree. Wouldn't you get a lean code?

Su37su · 12-07-2017, 03:35 PM

I did find a leak on the driver side pipe, about 6" from the primary cat.
I sealed the hole using permatex 80335.

11-13-2017, 06:22 PM	#1
Su37su Enlisted Member 21 Rep 43 Posts Drives: Lancer Evolution X Join Date: Nov 2008 Location: Socal iTrader: (0)	Help Identify Engine noise/rattle/click I've been hearing a weird noise coming from under the car, sounds like it's coming from the driver side and I'm not sure if it's normal. I think it might be from the exhaust pipe rubbing against something but I'm not sure. Skip to 17 sec mark for sound.
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11-13-2017, 07:13 PM	#2
deansbimmer BimmerPost Supporting Vendor 4324 Rep 3,023 Posts Drives: 2011 E93 M3 Join Date: Nov 2014 Location: DFW, Texas iTrader: (17) Garage List 1988 E30 M3 [0.00] 2006 E46 M3 [0.00] 2024 X7 M60i [0.00] 2011 BMW M3 [0.00]	Sounds like an exhaust leak from what I can hear in the video...
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11-13-2017, 08:06 PM	#4
Su37su Enlisted Member 21 Rep 43 Posts Drives: Lancer Evolution X Join Date: Nov 2008 Location: Socal iTrader: (0)	doesn't the car have a sensor for such leaks? I'll check for leaks this weekend. Last edited by Su37su; 11-13-2017 at 08:19 PM..
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11-14-2017, 08:10 AM	#6
Su37su Enlisted Member 21 Rep 43 Posts Drives: Lancer Evolution X Join Date: Nov 2008 Location: Socal iTrader: (0)	The car has so many sensors that I thought it has one for exhaust leak. I'll check everything this weekend. thanks.
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12-07-2017, 03:35 PM	#9
Su37su Enlisted Member 21 Rep 43 Posts Drives: Lancer Evolution X Join Date: Nov 2008 Location: Socal iTrader: (0)	I did find a leak on the driver side pipe, about 6" from the primary cat. I sealed the hole using permatex 80335.
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