996 Engine Noise... Should I be worried???
996 Engine Noise... Should I be worried???
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Discussion

26jcd

Original Poster:

117 posts

257 months

Tuesday 28th February 2012
quotequote all
Just had my 98 Tiptronic 996 out to take the girlfriend to town. I usually hear a rattle on start up when the engine is cold but I noticed when I pulled back up to the flat that a "whoooo whoooo whoooo whoooo" sound was coming from the engine.

It does not disappear whilst on the move either as I thought I could hear it off the walls I was driving past.

Appears loudest on the passenger side. Performance does not appear to have been affected either.

Could it be the exhaust? Going by other posts I presume if it was really serious the engine would have given up pretty quickly?

Any thoughts would be much appreciated as I do not want to seem like another paranoid Porsche owner taking the car the indy?

Thanks

sportsandclassic

3,774 posts

249 months

Tuesday 28th February 2012
quotequote all
Hi, can you take a sound clip of it ? It could be a roller bearing for drive belt or water pump could be on way out... Difficult to say without some noise.

26jcd

Original Poster:

117 posts

257 months

Tuesday 28th February 2012
quotequote all
Unfortunately my girlfriend is the only one with an iphone in the house and she won't be back until the early hours.

Its not a tappy noise as most people describe; much duller sound if thats any use?

Homer J

789 posts

249 months

Tuesday 28th February 2012
quotequote all
As daft as this sounds, was it a "whoooo", or more of a "moooooo"?

Seriously, sometime my 996tt Moo's.............Yes, like a cow.

Mine only does it at tickover, sometimes when hot, sometimes from cold. Had it back to my local indi many times over 2 years, never been able to solve it. But it's never effected the car.

sportsandclassic

3,774 posts

249 months

Tuesday 28th February 2012
quotequote all
Homer J said:
As daft as this sounds, was it a "whoooo", or more of a "moooooo"?

Seriously, sometime my 996tt Moo's.............Yes, like a cow.

Mine only does it at tickover, sometimes when hot, sometimes from cold. Had it back to my local indi many times over 2 years, never been able to solve it. But it's never effected the car.
Hi, it will make this noise when low on fuel and the tank vent valve makes a noise.

26jcd

Original Poster:

117 posts

257 months

Tuesday 28th February 2012
quotequote all
Unfortunately not really a "mooo" sound. Still it is not high pitched.


Homer J

789 posts

249 months

Tuesday 28th February 2012
quotequote all
sportsandclassic said:
Homer J said:
As daft as this sounds, was it a "whoooo", or more of a "moooooo"?

Seriously, sometime my 996tt Moo's.............Yes, like a cow.

Mine only does it at tickover, sometimes when hot, sometimes from cold. Had it back to my local indi many times over 2 years, never been able to solve it. But it's never effected the car.
Hi, it will make this noise when low on fuel and the tank vent valve makes a noise.
Should have said, tank can be full, half full, empty. That was one of things SCOM first thought.

As soon as you add some revs it shuts up.

No worries op, we'll each live with our own weird noises biggrin

Porkupine

1,722 posts

196 months

Tuesday 28th February 2012
quotequote all
Homer J said:
sportsandclassic said:
Homer J said:
As daft as this sounds, was it a "whoooo", or more of a "moooooo"?

Seriously, sometime my 996tt Moo's.............Yes, like a cow.

Mine only does it at tickover, sometimes when hot, sometimes from cold. Had it back to my local indi many times over 2 years, never been able to solve it. But it's never effected the car.
Hi, it will make this noise when low on fuel and the tank vent valve makes a noise.
Should have said, tank can be full, half full, empty. That was one of things SCOM first thought.

As soon as you add some revs it shuts up.

No worries op, we'll each live with our own weird noises biggrin
Have the same on my turbo now and then. Seems may be normal then! Like a high pitched whine!lasts for few seconds. Hasn't happened for a while but when it does its worrying.