991.2 GT3 metallic rattle at idle + 4000 rpm drone
05-08-2020, 10:26 AM
#31
I have that same metal rattle on idle. It is suppose to be normal so I hear. It sounds like metal grinding. When the car starts up there is no grinding rattling noise present. As soon as the car starts to warm up and gets over 85 oil temperature the noise comes back every time.
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991.2PorscheGT3 (06-09-2020)
06-09-2020, 10:55 PM
#34
Rennlist Member
I have that same metal rattle on idle. It is suppose to be normal so I hear. It sounds like metal grinding. When the car starts up there is no grinding rattling noise present. As soon as the car starts to warm up and gets over 85 oil temperature the noise comes back every time.
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991.2PorscheGT3 (06-09-2020)
06-10-2020, 10:27 PM
#37
Rennlist Member
Are y’all hearing the rattle from the inside of the car or outside or both. I hear a rattle inside, which figured was the pdk based on other posts. Nothing outside of the vehicle sounds off.
06-27-2020, 06:26 PM
#38
Update on my manual .2GT3, which has no side mufflers or center muffler. Turns out the fizzy, metallic rattle that sounded like it was coming from the rear of the car was actually the little ashtray in the center console. Easily fixed.
02-04-2021, 03:14 PM
#39
Advanced
Nope- That does not sound right for certain. Certainly bring it in and have them check that out.
Now- I did have some drone around 4500-5000 if you are diving in that range at a steady pace. Very livable but I have heard some journalists mention this, as well.
Now - I did put on a different Rear Bypass today and also disconnected hose to valve and plugged it. Meaning- valves are always open now( exhaust button no function because always on). Exhaust is loud as heck and love it. What I am now seeing is that transition at 3800 is very smooth and subtle now(great thing). But - I get some Drone only between 2000 and 3000 rpm. At 3000 it disappears. I will see how I feel in 2 months because very easy to reverse and activate the exhasut button again. I am thinking there is a very good reason the exhaust button exists to eliminate that low rev drone- Could also be wrong
Now- I did have some drone around 4500-5000 if you are diving in that range at a steady pace. Very livable but I have heard some journalists mention this, as well.
Now - I did put on a different Rear Bypass today and also disconnected hose to valve and plugged it. Meaning- valves are always open now( exhaust button no function because always on). Exhaust is loud as heck and love it. What I am now seeing is that transition at 3800 is very smooth and subtle now(great thing). But - I get some Drone only between 2000 and 3000 rpm. At 3000 it disappears. I will see how I feel in 2 months because very easy to reverse and activate the exhasut button again. I am thinking there is a very good reason the exhaust button exists to eliminate that low rev drone- Could also be wrong
Anyone else have the driver seatbelt retractor vibration at the same RPM (4k'ish)?
I'll give into the clutch just being insanely light, but the throttle transition (both on and off) around 3500-4500 is just snapping.
Are you describing this effect is numbed when the exhaust bypass in open full time?
Last edited by PhoenixINX; 02-04-2021 at 03:15 PM.
06-26-2021, 03:54 PM
#40
Rennlist Member
I just got my car and drove it for about 25 miles 3440 on the clock. Definitely hearing a noise that's described in this thread, the ash tray rattle was addressed prior to me gettin a car (on a receipt from Champion Porsche).
What should I do next is it a warranty item, 1-30-2019 was the original purchase date.
What should I do next is it a warranty item, 1-30-2019 was the original purchase date.
10-09-2021, 02:50 AM
#41
3rd Gear
Join Date: Sep 2021
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Hi all
My .2 GT3 PDK is 1 week old, late November build, LHD, 600 km on the clock.
Since day 1 I have this bad metallic vibration on thick over, only when the engine is hot; it’s not a rattle from the rear diffuser and it doesn’t seem the exhaust.
The dealer stated it comes from the engine case and opened a “ticket” with Porsche...now I’m waiting an answer.
Here it is https://youtu.be/pSuJXnGZxpY
Also I have a deep drone from 3800 rpm on in every gear (didn’t go over 4500 as I’m running in) in every...and some “clonk” from the rear when passing on some potholes, I thought it was the rollbar but a friend of mine has the same noise on a Touring Gt3 so not the case.
I’m wondering if it could be an engine mounts issue (new and electric on this car respect the hidraulic ones of 991.1) giving all the various noises...can’t think that this 180K euros car has problems at least in 3 different areas !!!!
Any opinion/help is well accepted.
My .2 GT3 PDK is 1 week old, late November build, LHD, 600 km on the clock.
Since day 1 I have this bad metallic vibration on thick over, only when the engine is hot; it’s not a rattle from the rear diffuser and it doesn’t seem the exhaust.
The dealer stated it comes from the engine case and opened a “ticket” with Porsche...now I’m waiting an answer.
Here it is https://youtu.be/pSuJXnGZxpY
Also I have a deep drone from 3800 rpm on in every gear (didn’t go over 4500 as I’m running in) in every...and some “clonk” from the rear when passing on some potholes, I thought it was the rollbar but a friend of mine has the same noise on a Touring Gt3 so not the case.
I’m wondering if it could be an engine mounts issue (new and electric on this car respect the hidraulic ones of 991.1) giving all the various noises...can’t think that this 180K euros car has problems at least in 3 different areas !!!!
Any opinion/help is well accepted.
10-10-2021, 12:46 AM
#42
