Normal Turbo whine now a whistle
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Normal Turbo whine now a whistle
Until recent maintenance I would describe my Turbo whine as a whoosh of air. After recent repairs however the sound is now more like a distant fire engine siren or a high pitched drill.
I went in for an 80k maintenance and also asked them to look into a few other problems (i.e. smell of cooked oil after parking in the garage, loss of coolant and check engine light on). Total damage was for just over $1700 WITH a 15% discount! The repairs were to replace leaking cam seals and v/c gaskets (cooked oil problem), replacement of after run coolant pump (loss of coolant problem) and replacement of both recirc valves (check engine light).
I suspect that the recirc valves are the culprits for the new turbo whine.
Should I be concerned about this? Even if response is "No" it is very noticeable and annoying with the radio off and as I mentioned wasn't there before repairs.
I want my smooth whoosh back!
Thanks for the replies.
I went in for an 80k maintenance and also asked them to look into a few other problems (i.e. smell of cooked oil after parking in the garage, loss of coolant and check engine light on). Total damage was for just over $1700 WITH a 15% discount! The repairs were to replace leaking cam seals and v/c gaskets (cooked oil problem), replacement of after run coolant pump (loss of coolant problem) and replacement of both recirc valves (check engine light).
I suspect that the recirc valves are the culprits for the new turbo whine.
Should I be concerned about this? Even if response is "No" it is very noticeable and annoying with the radio off and as I mentioned wasn't there before repairs.
I want my smooth whoosh back!
Thanks for the replies.
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I will.....your wife has been cheeting on you with your service advisor...he blew your turbos to get
you out of the way.
He knew that if you had to pay the $2500 for new turbos, your wife would leave you for him permanatly.
He knew that if you had to pay the $2500 for new turbos, your wife would leave you for him permanatly.
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Despite the smart comments...the reality is:
The drill or whistle sound typically is indicative of cooked turbos. Watch your coolant level and tailpipe for oil. I hope that is not the case.
As far as the swoosh sound...I'm assuming that sound was heard that on a downshift. The by-pass/diverter valves where bad and cause that sound...it is not a good sound. You now have new bypass valves, therefore, no swoosh.
As far as the swoosh sound...I'm assuming that sound was heard that on a downshift. The by-pass/diverter valves where bad and cause that sound...it is not a good sound. You now have new bypass valves, therefore, no swoosh.
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Re: Despite the smart comments...the reality is:
kc_kris, thanks for the reply. A few comments from your post.
The swoosh sound is something that existed since I owned the car. I read on here that it is the "normal" sound of the turbo as it kicks in when shifting gear. It was something I used to hear when shifting up and not on down shift.
On the new sound, I hope you're right and it's not cooked turbos. The only comment to that is that it didn't exist until the dealer made repairs to the car. How can anything the dealer does in repair cause the turbos to come back cooked? It seems to me that something the dealer did during repairs has caused this to happen. It would be a huge coincidence if my turbos started to exhibit symptoms of being cooked right after being in the shop and not have anything they did be responsible.
Appreciate the input.
The swoosh sound is something that existed since I owned the car. I read on here that it is the "normal" sound of the turbo as it kicks in when shifting gear. It was something I used to hear when shifting up and not on down shift.
On the new sound, I hope you're right and it's not cooked turbos. The only comment to that is that it didn't exist until the dealer made repairs to the car. How can anything the dealer does in repair cause the turbos to come back cooked? It seems to me that something the dealer did during repairs has caused this to happen. It would be a huge coincidence if my turbos started to exhibit symptoms of being cooked right after being in the shop and not have anything they did be responsible.
Appreciate the input.
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Is it constant, or just a transient whistle at a certain moment?
I've had the transient whistle (just as I step on the gas) since I've had the car. It lasts a second, and I've gotten comfortable with it. I assume it's the turbo spooling up.
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Actually, what you hear on the upshift is from bypass valves, and it may need to be fixed.
Turbo whine happens as you hit the gas; bypass valves come into play as you lift off the gas to change gears. If you are hearing a noise when lifting off the gas, then you may need new bypass valves.
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I'd say swoosh is pretty normal. The turbo on my last car was as loud as any bus/semi truck.
Nice turbo whine/swoosh on part throttle. I'm surprised the 1.8T and 2.7T's are so quiet. But a siren sound, that is no good. That's a sign of unwarranted friction in your system. If the siren is coming from the turbo, and gets louder or higher pitched as the load increases (as you push the gas harder) then ....
you may need new turbo's. =(
But before you look into that, I'd get a second opinion from a mechanic. If you have lingering smoke out the tail pipe, its possible a bearing sank and you're getting oil into the turbine/exhaust. That might help explain the siren sound (friction). You will need to rebuild the cartridge. Did they have to disconnect any of the oil lines during the repair. Hard to tell exactly what the problem is. There are so many different variables in these system, it's just nuts. It could be anything...
g'luck
you may need new turbo's. =(
But before you look into that, I'd get a second opinion from a mechanic. If you have lingering smoke out the tail pipe, its possible a bearing sank and you're getting oil into the turbine/exhaust. That might help explain the siren sound (friction). You will need to rebuild the cartridge. Did they have to disconnect any of the oil lines during the repair. Hard to tell exactly what the problem is. There are so many different variables in these system, it's just nuts. It could be anything...
g'luck