Im getting 2019 turbos so I can’t run the the car with the new turbos until I get a flash?
Turbo Failure 3.0T FYI
Hi Everyone,
I apologize if this is in the wrong spot, but I wanted to share some info on a recent turbo failure, in case it may help someone else in future
2017 - Q50 Premium 3.0T
57,000 Miles
No Mods
The issue started roughly 9 months ago, under load starting around 2,000 RPM there was a squeal coming from the engine, it was intermittent and not easy to hear, I took it into the dealer they checked the belts and tensioner, tightened everything and sent me on my way.
The squeal turned into a clicking/metallic knock noise, I have read the clicking is "Normal" so I didn't pay much attention to it but it started to get louder and more noticeable especially on cold start up, the car also started intermittently shuddering on shut down and the RPMs would occasionally fluctuate a lot, I took it back to the dealer and the first service advisor acted as if I was a moron with no knowledge of how cars worked and told me none of what I said would concern him but they will take a look. They ended up replacing the belt and tensioner and sent me on my way.
Clicking became worse over the coming week and would only be noticable on cold start up after leaving it over night, roughly a week later the clicking was so loud, it sounded like a tractor, I got a short video of it and took it straight to the dealer they held onto it for a week were able to replicate the issue but since there was no fault codes and engine seemed to be operating correctly they went to Infiniti Tech team who diagnosed it as a bad passenger side catalytic converter and replaced.
I took it home and the next morning same problem. Took it back to the dealer and they didn't have loan vehicles until this past Monday but assured me it was safe to drive, so I spent the weekend trying to figure it out and finally realized the clicking was actually happening above 2,000 RPM again however wasn't noticable during normal driving as the engine/exhaust drowned it out, while sitting in my garage and revving the engine to 3000rpm with short taps you could hear the clicking while the RPM was dropping from 3k back down to idle. Which lead me to believe it was a turbo .
i explained my findings to the dealer when I dropped it off yesterday and received a call just now that after more tests they have determined that yes a turbo is failing and they are replacing.
tl;dr - Metallic clicking / knocking during warm up when RPM is above 2,000 = failing Turbo
I apologize if this is in the wrong spot, but I wanted to share some info on a recent turbo failure, in case it may help someone else in future
2017 - Q50 Premium 3.0T
57,000 Miles
No Mods
The issue started roughly 9 months ago, under load starting around 2,000 RPM there was a squeal coming from the engine, it was intermittent and not easy to hear, I took it into the dealer they checked the belts and tensioner, tightened everything and sent me on my way.
The squeal turned into a clicking/metallic knock noise, I have read the clicking is "Normal" so I didn't pay much attention to it but it started to get louder and more noticeable especially on cold start up, the car also started intermittently shuddering on shut down and the RPMs would occasionally fluctuate a lot, I took it back to the dealer and the first service advisor acted as if I was a moron with no knowledge of how cars worked and told me none of what I said would concern him but they will take a look. They ended up replacing the belt and tensioner and sent me on my way.
Clicking became worse over the coming week and would only be noticable on cold start up after leaving it over night, roughly a week later the clicking was so loud, it sounded like a tractor, I got a short video of it and took it straight to the dealer they held onto it for a week were able to replicate the issue but since there was no fault codes and engine seemed to be operating correctly they went to Infiniti Tech team who diagnosed it as a bad passenger side catalytic converter and replaced.
I took it home and the next morning same problem. Took it back to the dealer and they didn't have loan vehicles until this past Monday but assured me it was safe to drive, so I spent the weekend trying to figure it out and finally realized the clicking was actually happening above 2,000 RPM again however wasn't noticable during normal driving as the engine/exhaust drowned it out, while sitting in my garage and revving the engine to 3000rpm with short taps you could hear the clicking while the RPM was dropping from 3k back down to idle. Which lead me to believe it was a turbo .
i explained my findings to the dealer when I dropped it off yesterday and received a call just now that after more tests they have determined that yes a turbo is failing and they are replacing.
tl;dr - Metallic clicking / knocking during warm up when RPM is above 2,000 = failing Turbo
21 - 38 of 38 Posts
An ECU flash should be part of the new turbo installation procedure.Im getting 2019 turbos so I can’t run the the car with the new turbos until I get a flash?
I’m taking mine to a third party shop to install the turbos they were charging me 6k I have 79,990 miles so I passed the warranty so I would have to tow in back to Infiniti to do the ecu flash ?An ECU flash should be part of the new turbo installation procedure.
My understanding is when the ECU is going to be replaced, the ECU data is first saved on a CONSULT tool and then loaded back onto the new ECU. Also after replacement there are numerous other initializations and position learning procedures that must be done to complete the swap. Unless your third-party shop has a CONSULT and is experienced in doing the procedures, you should consider having an Infiniti tech do that part of the work, if they'll do it.I’m taking mine to a third party shop to install the turbos they were charging me 6k I have 79,990 miles so I passed the warranty so I would have to tow in back to Infiniti to do the ecu flash ?
I'm confused - how did we go from ECU flash to ECU replacement? I understand that when the newer revision turbos are installed in-place of the "old" turbos w/EGT sensors, the ECU flash deletes the monitoring & control of the EGT sensor from "in the loop".My understanding is when the ECU is going to be replaced...
If the new turbos were installed by the indy shop, it is likely the ECU w/o a new flash would likely cause a CEL, but I'm unsure if the lack of EGT input would result in the ECU going into "limp mode".
Why on earth if youre paying out of pocket for new turbos would you put in new STOCK turbos????
I must have been thinking of another thread when I wrote that part but a flash is certainly required to avoid all the DTCs associated with the removal of the EGT sensor. There is no fail-safe (limp mode) associated with any of the EGT sensor DTCs that I could find. I know the EWG control solenoid has to be initialized and there may be some more initializations to do when replacing the turbos.I'm confused - how did we go from ECU flash to ECU replacement? I understand that when the newer revision turbos are installed in-place of the "old" turbos w/EGT sensors, the ECU flash deletes the monitoring & control of the EGT sensor from "in the loop".
If the new turbos were installed by the indy shop, it is likely the ECU w/o a new flash would likely cause a CEL, but I'm unsure if the lack of EGT input would result in the ECU going into "limp mode".
I am having the same problems. I took it to the dealership mutiple times and they insured me nothing was wrong replaced a Maf sensor and said everything was good. I knew something was wrong by the squeal that was happening. All of a sudden check engine light came on. Took it to the dealer two days ago and got a call yesterday that the turbos are the issue. The car is a 2019 with 42,000 miles on it. I feel what your going through brotherHi Everyone,
I apologize if this is in the wrong spot, but I wanted to share some info on a recent turbo failure, in case it may help someone else in future
2017 - Q50 Premium 3.0T
57,000 Miles
No Mods
The issue started roughly 9 months ago, under load starting around 2,000 RPM there was a squeal coming from the engine, it was intermittent and not easy to hear, I took it into the dealer they checked the belts and tensioner, tightened everything and sent me on my way.
The squeal turned into a clicking/metallic knock noise, I have read the clicking is "Normal" so I didn't pay much attention to it but it started to get louder and more noticeable especially on cold start up, the car also started intermittently shuddering on shut down and the RPMs would occasionally fluctuate a lot, I took it back to the dealer and the first service advisor acted as if I was a moron with no knowledge of how cars worked and told me none of what I said would concern him but they will take a look. They ended up replacing the belt and tensioner and sent me on my way.
Clicking became worse over the coming week and would only be noticable on cold start up after leaving it over night, roughly a week later the clicking was so loud, it sounded like a tractor, I got a short video of it and took it straight to the dealer they held onto it for a week were able to replicate the issue but since there was no fault codes and engine seemed to be operating correctly they went to Infiniti Tech team who diagnosed it as a bad passenger side catalytic converter and replaced.
I took it home and the next morning same problem. Took it back to the dealer and they didn't have loan vehicles until this past Monday but assured me it was safe to drive, so I spent the weekend trying to figure it out and finally realized the clicking was actually happening above 2,000 RPM again however wasn't noticable during normal driving as the engine/exhaust drowned it out, while sitting in my garage and revving the engine to 3000rpm with short taps you could hear the clicking while the RPM was dropping from 3k back down to idle. Which lead me to believe it was a turbo .
i explained my findings to the dealer when I dropped it off yesterday and received a call just now that after more tests they have determined that yes a turbo is failing and they are replacing.
tl;dr - Metallic clicking / knocking during warm up when RPM is above 2,000 = failing Turbo
Post up in the consolidated turbo failure thread in my sig.I am having the same problems. I took it to the dealership mutiple times and they insured me nothing was wrong replaced a Maf sensor and said everything was good. I knew something was wrong by the squeal that was happening. All of a sudden check engine light came on. Took it to the dealer two days ago and got a call yesterday that the turbos are the issue. The car is a 2019 with 42,000 miles on it. I feel what your going through brother
So I am having similar issues I hear on the driver's side. whistling howling noise with chattering metal noise only on warm up.Hi Everyone, I apologize if this is in the wrong spot, but I wanted to share some info on a recent turbo failure, in case it may help someone else in future 2017 - Q50 Premium 3.0T 57,000 Miles No Mods The issue started roughly 9 months ago, under load starting around 2,000 RPM there was a squeal coming from the engine, it was intermittent and not easy to hear, I took it into the dealer they checked the belts and tensioner, tightened everything and sent me on my way. The squeal turned into a clicking/metallic knock noise, I have read the clicking is "Normal" so I didn't pay much attention to it but it started to get louder and more noticeable especially on cold start up, the car also started intermittently shuddering on shut down and the RPMs would occasionally fluctuate a lot, I took it back to the dealer and the first service advisor acted as if I was a moron with no knowledge of how cars worked and told me none of what I said would concern him but they will take a look. They ended up replacing the belt and tensioner and sent me on my way. Clicking became worse over the coming week and would only be noticable on cold start up after leaving it over night, roughly a week later the clicking was so loud, it sounded like a tractor, I got a short video of it and took it straight to the dealer they held onto it for a week were able to replicate the issue but since there was no fault codes and engine seemed to be operating correctly they went to Infiniti Tech team who diagnosed it as a bad passenger side catalytic converter and replaced. I took it home and the next morning same problem. Took it back to the dealer and they didn't have loan vehicles until this past Monday but assured me it was safe to drive, so I spent the weekend trying to figure it out and finally realized the clicking was actually happening above 2,000 RPM again however wasn't noticable during normal driving as the engine/exhaust drowned it out, while sitting in my garage and revving the engine to 3000rpm with short taps you could hear the clicking while the RPM was dropping from 3k back down to idle. Which lead me to believe it was a turbo . i explained my findings to the dealer when I dropped it off yesterday and received a call just now that after more tests they have determined that yes a turbo is failing and they are replacing. tl;dr - Metallic clicking / knocking during warm up when RPM is above 2,000 = failing Turbo
If you have a whistle, er, howling, under boost, and it's progressed to chattering - I highly suggest you don't drive your Q anymore, cause the turbo(s) is(are) toast. If Infiniti Service doesn't find any signs of oil change neglect, then you'll likely get new turbos AND and engine, because a whistle under boost means the impeller(s) is(are) rubbing against the turbo's compressor housing(s), dumping metal bits into the intake. While the Charge Air Cooler is there as a catch can, of sorts, for the metal bits, Infiniti replaced my BOTH turbos AND the engine when I had the turbo whistle in one bank, and it was a mild case of the whistle (no howling or chattering noises).So I am having similar issues I hear on the driver's side. whistling howling noise with chattering metal noise only on warm up.
Good luck!
So I have the infinity Q50 2017 signature edition stock. It just started over the week only on a cold start and I'd never hear a thing while driving only when I start it for the 1st 15 seconds. No performance lost runs beautiful. I've never had an oil change done by anybody but myself cause. I do not trust no one? So does that mean my warranty will not cover if the oil looks pest clean?If you have a whistle, er, howling, under boost, and it's progressed to chattering - I highly suggest you don't drive your Q anymore, cause the turbo(s) is(are) toast. If Infiniti Service doesn't find any signs of oil change neglect, then you'll likely get new turbos AND and engine, because a whistle under boost means the impeller(s) is(are) rubbing against the turbo's compressor housing(s), dumping metal bits into the intake. While the Charge Air Cooler is there as a catch can, of sorts, for the metal bits, Infiniti replaced my BOTH turbos AND the engine when I had the turbo whistle in one bank, and it was a mild case of the whistle (no howling or chattering noises).
Good luck!
If this noise (chattering) ONLY happens during startup, then it's typically the acoustic noise from the wastegates being commanded open by the ECU to have the exhaust bypass the turbos. This is done to get the primary catalytic converters up to temperature faster for emissions reasons. This would be a normal condition.So I have the infinity Q50 2017 signature edition stock. It just started over the week only on a cold start and I'd never hear a thing while driving only when I start it for the 1st 15 seconds. No performance lost runs beautiful. I've never had an oil change done by anybody but myself cause. I do not trust no one? So does that mean my warranty will not cover if the oil looks pest clean?
Thank you so much for the feedback makes me feel a little more comfortable the only thing that's prior new from this week was the howling winding noise. I get with the chattering only on startup here's a sound. Wasn't sure if it's just oil not making it to the turbos on startup I tried to upload a 3 second video of the sound but it doesn't allow me says file too big.
Videos can't be directly posted here. You should post the video on YouTube and post a link to it here.Thank you so much for the feedback makes me feel a little more comfortable the only thing that's prior new from this week was the howling winding noise. I get with the chattering only on startup here's a sound. Wasn't sure if it's just oil not making it to the turbos on startup I tried to upload a 3 second video of the sound but it doesn't allow me says file too big.
Videos can't be directly posted here. You should post the video on YouTube and post a link to it here.
I'll let others verify the noise but it sounds like a turbo problem to me.
21 - 38 of 38 Posts
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