Hi guys,

Unfortunately my 997.1tt is making strange clicking/ticking noises from the engine on driver's side (LHD car) and it is driving me nuts. You can hear it when it is idling and it progressively gets faster as you drive. It kind of sounds like a pulley is not centered right or something. I know that these Mezgers sound like a can full of screws&bolts but you can clearly hear that it is not normal. My friend's car with 3x the mileage does not emit any of these clicking/ticking sounds at all (my car has 17k miles!). As Zurich has the highest Porsche density in the world, I constantly hear other 997.1 Turbos on the street and none seem to be making this strange puttering/clicking/ticking noise.

It makes the car sound a lot more like an old VW beetle (which it kind of is...) and I don't like it. It makes it sound cheap/broken. It could be mistaken for flywheel chatter but the clutch assembly is stock. The sound does not go away if I depress the clutch pedal.

I have been to 2 Porsche dealers and they did not know what it is but did concur that it is not normal. An independent garage specialized in all things Porsche (works on many race cars) said that it could be that a chain inside is loose (chain tensioner?), but basically have no clue at all.

I have attached the 3 videos below, where you can hear the noise in the background. It's the noise that kind of sounds like cicadas and it goes "tic tic tic tictictic":




Has any of you ever encountered such an issue and found a fix? Any help would be amazing.

Best regards from Switzerland,
YH

 

Exhaust leak

 

Thanks for the input but unfortunately, it makes the same noise when my FVD exhaust is on, which I‘m sure does not have a leak.

A Rennlister mentioned that it could be an injector that’s going bad. Does that seem plausible?

 

Did you change the gaskets when swapping the exhaust? I meant a leak from one of those gaskets ...

could also be a lifter noise, try an oil change with a heavier oil, maybe 5w50 ....

 

I had a similar noise. Had to replace the Camshaft Solenoid's. Hope yours is not that.. Does the car develop boost? any power loss?

 

Check this thread.

https://www.6speedonline.com/forums/...t-ticking.html

 

my vote is on exhaust leak....usually where the manifold meets the head.

 

A good mechanic friend of mine said the ticking noise can be coming from a spark plug that was not properly torqued.

 

If that was my old Audi I would say lifter noise when my oil level starts to drop.

You know it is directly related to engine speed, but there are lots of things that it could be. A mechanics stethoscope will help narrow it down.

If it's exhaust you might be able to see/feel evidence of that checking the various points in the system.

Was this all of a sudden or did come on sporadically? It sounds more metallic to me in the videos.

Ed

 

Ever find the cause?

 

If you rev the engine and it ticks linearly with RPM then it is bottom end related. If the tick speeds up faster than the RPM then it is head related. In my case it was a bent stock rod.

 

3 year old thread and the OP never came back...