**Help Loud Hissing and ticking sound

Shorting · 07-20-2011, 04:52 AM

Hey guys

I know there are a lot of threads on the ticking sound but the noise that the car is making is not a normal tick where it sounds light.

It almost sounds like its knocking and there is something loose.

Almost exactly like when you have some loose change in the dryer when your doing the laundry.

Its very noticeable in the cabin. when you accelerate the sound does not get louder but it speeds up as the revs do too.

I did a cold star tonight and it made this VERY loud hissing sound. Almost like a pressure tank was loosing pressure because there was a leak.

I pulled into the gas station and a guy with a 335 heard the noise from 2 rows away.

Im just trying to see if anyone has an insight on this before i take it in

The car has 87K miles

The noise is coming from the front of the engine. Lower portion on the passenger side. almost like its coming from where the belt drives in that location

Thanks in advance

LaLakers91tc · 07-20-2011, 11:27 AM

Did you check your belts? That's what it sounds like to my not so mechanically inclined ear.

Shorting · 07-20-2011, 02:15 PM

Quote:

Originally Posted by LaLakers91tc

Did you check your belts? That's what it sounds like to my not so mechanically inclined ear.

ya i had the belt worked on about 6 months ago. But i would love it to be just that.

Shorting · 07-21-2011, 02:02 PM

UPDATE

well took it to the shop.

Its my AC compressor the pulley melted and its knocking.

there is as chance it shattered the blower on the inside.

Estimated repairs at this time at an indy shop is $1400

07-20-2011, 04:52 AM	#1
Shorting Private First Class 17 Rep 110 Posts Drives: LCI 335i Join Date: Jan 2011 Location: OC, Ca iTrader: (0)	**Help Loud Hissing and ticking sound Hey guys I know there are a lot of threads on the ticking sound but the noise that the car is making is not a normal tick where it sounds light. It almost sounds like its knocking and there is something loose. Almost exactly like when you have some loose change in the dryer when your doing the laundry. Its very noticeable in the cabin. when you accelerate the sound does not get louder but it speeds up as the revs do too. I did a cold star tonight and it made this VERY loud hissing sound. Almost like a pressure tank was loosing pressure because there was a leak. I pulled into the gas station and a guy with a 335 heard the noise from 2 rows away. Im just trying to see if anyone has an insight on this before i take it in The car has 87K miles The noise is coming from the front of the engine. Lower portion on the passenger side. almost like its coming from where the belt drives in that location Thanks in advance __________________ GIFSoup
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07-20-2011, 11:27 AM	#2
LaLakers91tc Lieutenant Colonel 53 Rep 1,860 Posts Drives: BSM E92 335i 6MT Join Date: Feb 2008 Location: Lawrenceville NJ iTrader: (5)	Did you check your belts? That's what it sounds like to my not so mechanically inclined ear. __________________ Current 07 BSM E92 335i Previous SGM E90 330i (R.I.P.)
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07-21-2011, 02:02 PM	#4
Shorting Private First Class 17 Rep 110 Posts Drives: LCI 335i Join Date: Jan 2011 Location: OC, Ca iTrader: (0)	UPDATE well took it to the shop. Its my AC compressor the pulley melted and its knocking. there is as chance it shattered the blower on the inside. Estimated repairs at this time at an indy shop is $1400 __________________ GIFSoup
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