racer63

I purchased a 2002 996TT about two weeks ago. It's got about 5K miles on it. From the start I noticed a rattle/knock coming from the engine compartment only at idle. It sounds like clutch bearings. But I don't think it could be clutch bearings as it makes the noise even when the clutch petal is depressed. What is this noise?

Also, how much oil consumption is normal for these cars at 5K miles. It looks like, from the on board computer's measurement, that the car has burned about half a quart in 300 miles... Is that unusual?

Thanks in advance.

racer63

I've been surfing a bit on the web and found a few references to the timing chain tensioner as the likely cause for this noise. The few places I've run across this reference, they say "all 996TTs make the noise to some extent or another" and "there's no fix".

Does this sound correct?

msindi

Im no mechanic or car expert, but from what my tech tells me, every 996TT has a weird noise (he heard mine making one too). The funny thing is that no two have the exact same noise...very interesting.

Chris996

Oil consumption looks normal for hard driving....When not getting on it less.
My 911 turbo 30k+ makes no chain noise. My old 996 had chain noise .

Kevin

You might want to look at a few "oil" threads that have been posted. Mobil TDT and Shell Rotella T6 both in 5W40...

Kevinmacd

The noise you are referring to is a common noise which eminates from the internal IMS gears. Rev it up to beyond 2K and it should disappear. Its normal. Using different type of oils as noted above can reduce the noise but will not get rid of it totally. I get over 3000 miles per 1/2 qt

leftlane

Ditto Kevin - the intermediate shaft rattle is totally normal on these cars. Both of mine have it, the coupe a little louder than the cab. The top Porsche tech in my area told me to quit worrying about it and that they all do it to some extent.

Carlo_Carrera

Being that your car only has 5k miles on it there is a real chance your engine hasn't even been properly broken in yet. Try a different oil and drive that baby. The IMS noise will probably quiet down and the oil consumption will probably decrease as well.

rmc1148

I would like to see some pics 5k is one of the lowest mile cars here.

jeanmarcboilard

Do you want to see the pics from 2003? Guys, the original post is over 11 years old, haha. Not sure why it was brought up today.

rmc1148

So funny this happens every so often, I never look at the date other then the most current post= but yes I would like to see the photos none the less.

Kevinmacd

Guess we need to check creation date! Don't understand how this popped back up a 11 years later???

rob0001

Guess the car has now at least 50k miles and still the same noise. Would be great to have this confirmed!