Apparently not the same ticking that the other posts are about, so I started this thread. Any ideas? Background: Car had not been touched in about 5 or 6 days and it's the first and only time I have heard this noise. It went on for a few minutes and stopped after the car was warmer.
As you can guess, I cannot replicate the noise anymore for the dealership - maybe I have to give it another 5 or 6 days?
I am not the best at this but I will say this...if you say the sound went away once the car was warmed up, wouldnt this be the same associated ticking that is normal for the car? If not could it be the video quality/sound quality?
Every morning mine makes the same ticking noise until its warmed up.
Thanks....saves me a trip to the dealer. Not sure why mine is sporadic.
Normal for a lot of cars I think.
My guess (which I would not bet on):
Serpentine belt tensioner is making the sound as a stiff spot in the belt goes through it (similar to how your tyres may be out of round a bit on a cold morning before they heat up)
I've never heard that before. If it were me, id be at the dealer asap.
Scott:
This is likely a manifold gasket leak...a small one. Cars make this sort of noise when that happens and often, when the car warms a little the gasket swells and the leak goes away. If it happens again, try and pinpoint which side of the car it's coming from and, if you can, which pipe underneath.
If you take it to the dealer, tell him you suspect a leaking exhaust gasket and try to show him exactly where you heard it. Then tell them that it only happens when the car is dead cold. Have them keep the car overnight at least before trying it.
Good news is that it's not likely to hurt anything. I've had Chevys that have done this for 50,000 miles without a hiccup and that's all the time, not just when cold. This is not an uncommon thing although it's uncommon on a Porsche. I'd expect a couple hours labor to fix it and a new gasket. Should be covered if the car is under warranty. You can claim it's emissions related if they balk at the warranty claim. It technically is an exhaust leak, although it's a tiny one.
The noise disappeared since my OP, but I will go under and inspect everything (I have to replace one of the pipes anyway, so I'll do it all in one shot). Thank you for the pinpoint troubleshooting :beer:
I'm guessing lifter bleed down and it takes a bit for those that bleed down to pump up. How fresh is the oil? Oil with miles and contamination (water/unburned gasoline) will become thinner and lifters are more likely to bleed down than with fresher oil. If oil "old" you might try an oil change but it may not help.
That the noise hasn't reappeared even though the engine has cooled down strongly points to this.
Were the noise there every cold start or most of them I'd say -- since the car has aftermarket exhausts -- there's an exhaust leak. Last thing touched first thing suspected...
Since car is under new car warranty not sure how much tinkering you want to do, but if you want check all spark plugs are tight, and while you're there all coils are secure and properly connected to their respective plug.
Sincerely,
Rockster.
Oil is fresh (maybe a few hundred miles on it) and I've only heard the noise twice total. Will recheck the exhaust shortly...
By 'old oil' I was referring to oil that has been in service long enough to become contaminated with unburned fuel and and water. This contamination definitely thins the oil and can make for a noisy engine at startup, cold or hot idle. It is not a matter of how old the oil is per se, but by how the car is used.
In re-reading my post I admit my wording was horrible and I can see how you could have missed my intent.
Sincerely,
Rockster.
Rockster:
No problemo.
Our new oil is pretty durn thin.... 0W40? Not much thicker than water.
And for the kids at home, don't experiment with using thicker oil. There are parts of this engine that need the oil to be this thin. Follow the owner's manual. 15W50 racing oil is not for this car no matter what you do with it.
I've thought for years, like since Mobil 1 first came out... that they should use thin synthetic and tighten up the tolerances. They've finally done it on most modern engines. It works!
Thinking about the original clicking sound again, I'm leaning more toward a hydraulic tappet loosing some of its oil after the car sits a long time, especially since the sound goes away after a short time.
:cheers:
