2016 Volvo xc90 loud whistle P0171
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- เผยแพร่เมื่อ 25 ส.ค. 2024
- Loud whine, whistle, code P0171 (Lean Code).
This is from a failing oil trap which is the PCV system. The oil trap assembly needs replaced. I would suggest FCPEuro.com for your parts. They are covering all parts with a Lifetime Warranty. They carry Genuine Volvo parts at a great price as well as very good aftermarket parts and OE supplier parts!!!
This is a pretty simple repair... Follow along
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Thanks. This helped me a ton. Exactly the noise I got on my 16 XC90 at 69,400 miles.
Thanks for the video. I just fixed my 18 xc90 which had exactly the same problem as in the video, loud whistle noise with the too lean P0171 code. I bought a genuine Volvo oil trap. The replacement took me about 30 minutes following this video. It works like a charm and the noise is gone! I tried to reset the check engine light but it was not successful at that time. After driving around with several start/stop cycles the next day, the check engine light became off by itself. I think my car is fixed now so I avoided a trip to Volvo services and saved lots of money. Thank you very much!
The best video to resolve the PCV issue on a 2016 XC90
Dude, thanks so much for posting this, $160 and 20 minutes to fix. Now the noise is gone and the wife is happy.
Thank you so much! Had exactly the same issue. Quick Google search yielded your video. Purchased a replacement part, not the 0EM, which cost me $40. Took me 10 minutes to replace it. You saved me probably around $400. God bless you.
Great video,even 4 years later
Thank you for this video! Like everyone below- you saved me a bunch of cash. Wish there was a tip function on there because all the time you spent filming and uploading should be worth more than just a "thumbs up". By your kind actions you saved so many people their hard earned cash. so THANK YOU!
thanks to your video, you saved me a trip to Volvo dealership and tons of money. very much appreciated!!
THANK YOU for this video! Exactly what my XC90 was doing. You saved me lots of $$$$$$$$. Cheers mate, you are a star!
Maaaaaaan I know right, I was freaking the hell out man lol
You're the MVP almost replaced my entire belt
I have a 17 sc90 that just started soing this! Im ordering the new pcv valve on monday!
Thanks a lot!! Had one today in our workshop and your video popped up first, nice work 👍 saved me some time
Glad to be able to give back to the tech manual of TH-cam. Cheers!
Thanks for this! I was hoping to hear the sound the oil fill hole makes with the oil cap off AFTER the PCV box is fixed. My xc90 isn't squealing, but I get the lean code and the pulsating whoosh sounds when I take the oil fill cap off. What is normal crank case vacuum pressure?
Thanks for this video it is well needed. Now Ikw what my Volvo XC90 needs. This whistling noise is horrible.
Great video. Hope more videos coming soon for Volvo s90
Thank you for this. I am not a car guy. But was able to do this!!
Thanks, I have the same engine just new car; but I want to study this problems for the future.
Many times thank you! What a helpful video! Kudos to you!
Thank you. Very helpful video.
Temos uma aqui que o ajuste de longo prazo fica acima dos 28%, o curto fica normal.
Omg you save me arm and legs woohoo thanks!!!!!!
Thank you for this step by step video. I am having this exact issue while on holiday in Italy. Hope I can get the part so I can fix this issue thanks to your video. Was it by any chance a T8 or makes the part number no difference? Mine is a XC90 T8 MY16.
@@sijmonsbergen mine is 2016 T6... I'm unsure of the part interchange
What is the hose that is attached to the seporator i need the gasket for the other end
what is the hose attached to the separator i need the rubber gromet for the other end
This have only the T Engines or the Dizel D3,4,5 too ?!
Do you know how to change the upstream o2 sensor?
Thank you 🙏
Hello did it come with a gasket or was that purchased separate ?
Awesome video, you just save me around $600 bud.....
Glad I could help!!!
How did you clear check engine, with wich program?
I've the same code the dealership is charging me so much money for it. What parts do I need to buy off the volvo to do it myself? I've volvo xc60 T8 2018.
Great video. I have the same code, with a terrible exhaust stench. I am betting on a bad O2 sensor but will do a vacuum rule out test first. Any hints on how to get to the O2 sensor? My guess is that I need to drop the plastic skid plate to access the cat.
I have the exhaust stench as well.
Mine is a 2017 S90 T6.
P0171 code
Exhaust stench
Awful fuel economy from 21 to 16 mpg
Studders under light throttle
No whistle
Seems to run fine otherwise.
What ended up being the problem on yours?
This is happening to my volvo c30
thanks
HELP, please! Would this oil trap issue be indicative of any additional issues that would cause our driver's side exhaust to smoke? I followed your advice and replaced the oil trap and the screeching sound went away, but accompanying this issue was white smoke coming from the driver's side exhaust (I am unsure if there was any smoke prior to discovering the oil trap issue but I think I would have noticed it) and after I replaced the oil trap the smoking still persists. This video was so helpful though, thank you. Our 2016 is barely outside of its warranty and we would have gotten a large bill I'm sure had I not replaced this myself. Hoping that the smoke is somehow residual and will subside.
If oil was pushed into the exhaust from the old trap, then it will take a little bit to burn away.
I would suggest verifying proper oil level, and going for a 10 minute ride on the freeway
@@69nitronova Thanks for the quick response! I had the trap replaced within five miles of hearing the sound for the first time so I was thinking it could be something like that.
Is your car ok to drive while you wait for the part if this is the issue? Thank you!
Hi did you drive around waiting? I’m having the same issue
I changed it and worked great for an hour and have same noise again. Causes?
You changed the entire cover? What brand part?
Possibly defective?
@@69nitronova was generic part so that might be it
I didn’t change the check valve though that connects to a hose
Go to FCP Euro.
You'll get a reliable part. I suspect this is the issue
@@69nitronova thanks will do
I have the same sound and issue. dealer recommended fixing the breather and resealing the supercharger . And replacing oxygen sensors . Estimated $6k parts and labor .
The car has only 66k miles , very disappointed in Volvo
I would do the pcv trap/breather assembly first and see how the car responds
@@69nitronova thank you for the video and suggestion . I ordered a pcv breather box and will fix it next week . Will update my findings here
@@69nitronova Update: I have replaced the PCV Oiltrap, huge thanks to you; Took under 20 mins. The squealing noise fixed. Dealer wanted $752+Tax. for a $170 part.
The check engine light still persists. According to the dealer's diagnosis, the oxygen sensor needs to be replaced. Did not specify which one.
Looks like thats my next step.
@@aforaruntej glad you are on the road again!
@@aforaruntej I would clear all faults and reset the adaptive learning to find out if an Oxygen sensor is still required. This oil trap causes lean oxygen codes and skews the fuel tables. A thorough reset would be addressable after the oil trap repair
What scanner do you use? I've taken my car to 2 different auto parts stores and there scanners cannot read the codes off of my volvo
I have a Snap on Solus Pro, but I accessed the faults by generic obd2.
Right
Which engine is it? D5?
I am wanting to place the order for this part. Just had a question. How do I know if I just need to replace the old trap alone or need to order the full oil trap assembly kit? Mine is definitely making the noise in your video but has the acceleration fan going after I turn the SUV off after driving it for a while. No flashing codes or red hood just the check engine light is on.
By the way FCP Euro is very helpful and easy to work with for a newbie owner of volvo. Thank you for this video.
FCP totally helped me figure out which one to get. Thank you again for this reference as I live in a rural area without a dealership close.
Yes, just call FCP Euro, they will sort you out. Have your VIN ready
Part link?
Is there a torque spec for the bolts? I've watch a few videos and everyone just says " tighten the bolts". Want to make sure since I'm about to take this on and save a few hundred $. Ps. currently our local Volvo dealership charges just under $400 to replace this.
I'm certain there is. I simply used a 1/4" drive ratchet and snugged the bolts. There is a steel sleeve in the hole of the oil trap where each bolt goes, you'll feel the gasket compress then you'll feel the sleeve hit the engine and stop tightening. I would guess around 70 inch pounds of torque
So mine was making the same noise and I changed out the oil trap and now the noise is gone and I cleared the code but it's popping back up
Looks like further diagnosis is in order
Have you resolved this issue? I can't reset the code.
What diagnostic tool are you using to clear the code? Also whats torque on the oil trap bolts?
I have a snap on and an OTC scanner. Neither has propriety software for this car. However the generic OBD2 setting in the scanner worked.
As for torque. I do not recall off the top of my head but I would guess it's 90-100 inch pounds. Only a guess though without digging through the books
So what’s the part number you just replaced? I have all the same problematic noise you did.
What was the part name, had a hard time hearing what ya said.
It's referred too as a "Breather " or also a "Flame trap".
Go to FCP Euro and select by your vehicle
My wife’s 2016 XC90 had the same problem check engine light come on and off did that for about a month checked for codes and got P0171 then last week we were in Florida on vacation and on our way home I heard a whistle noise when I would come off the Excelerator/gas part was $200 from fcp and came in today super easy to change out next I tried to clear the check engine light with one of those $20 OBD2 things also had to pay 20 bucks to unlock the pro version of the app well when I pressed clear code it didn’t work and now the abs brakes are deactivated and transmission is saying it needs service i’m wondering if I disconnect the negative terminal on the battery and try to start the car if that’ll wipe out the computers memory and I can start fresh
Not sure why that happened to you. I have not seen that. But yes I would think battery disconnection would help
Quick update picked up from the dealer yesterday it had a bad front passenger wheel speed sensor which was causing the transmission light and ABS light $500 💩they also cleared the p0171 code and reset the adaptations but today check engine light came back on with the same code p0171 💩
@@clevelandsmith8580 smh 🤦🏽♀️
@@clevelandsmith8580 Was your code ever cleared?
I just replaced this part on my wife’s 2016 XC90 today, reset the Check Engine Light with the app, drove it around the block and now the light is back on.
My 2016 Volvo XC90 has the code P0171 system too lean bank 1. But doesn’t make any noise. Should I do the same thing to get rid off the check engine sign. Please help. Thanks
I would do a little more troubleshooting as other things could cause that code as well. The whistle I had was a dead giveaway for the pcv issue
Thanks for the reply!!!
@BengalTiger did you happen to resolve your issue? What was causing your P0171 code?
@@danishtaco3852 I changed this part code did not go away. Next I’m going to see if the map sensor is the culprit. I did the vacuum leak test. No leak. I don’t know if the oxygen sensor is bad or not. It’s like a guessing game for me for this code. My inspection due end of this month. might have to take it to a dealer
@Bengal Tiger yeah im having the same issue with my wifes Volvo. Except the CEL (with the same code) is intermitten. Comes on and off every few days. Im trying to narrow down if there is just a loose hose or not. Other than that the car drives fine. I too am going to try and clean off the MAF sensor to see if its causing the issue.
I have this code that noise and an accelrated idle is that also an issue?
Sounds quite probable that you need to do this repair. Best of luck
I just switched the part. Thanks for the video. Does the code have to be cleared by the dealer.
A generic code reader that has clearing ability should work
@@69nitronova thanks
did you have any other issues leading up to this? excessive oil usage or low coolant levels?
No, just the noise and the check engine light
Had this same issue too
Does it have to be whistling? I have a 2017 xc90 t6 2.0L Turbo with 50k mileage. P0171 code and 50% stft high Ltft 23%. (Freeze frame) The stfu Is at 0% most of the time at idle but sometimes jumps up as high as 50%. I noticed the manifold pressure was around 10 isnt that too low?
Could be a leak in supercharger
David james did u ever find the problem..mine is doing same exact thing
Mine too.
Need for oil filter temoval
For a 2008 vx90
Please show how
You have a link to this part? I'm having troubles finding it and the shops aren't a lot of help right now.
I would recommend going through FCPeuro.Com
You would be best to purchase by VIN
@@69nitronova hey you're a lifesaver w the speedy reply. Point of curiosity, you think I can just clean it up w brake cleaner and slap it back in or is this a genuine "no you really need to replace the part" situation?
@@andrewbest1333 there's is a diaphragm check valve in the cover that I believe is what fails. Not sure if it's molded into the plastic or if it can be removed and cleaned. But I do not believe any repair parts are made other than the whole cover. FCPeuro will be your source for the whole part at the best price
Did you replace or clean the part?
Replace. Go to FCPeuro.com for the part. Cheaper than the dealer and still OE
Could you provide a link to the part?
Go to FCPEuro.com
If you call, they can verify the correct part based on your VIN.
You will definitely save money vs the dealer.
My 2016 xc90 just started making the same sound this evening. I noticed my alternator volts jumped up to 15 though. What would cause that? It does quite down after I open up the oil fill cap. So does that mean its my pcv?? Any help would be appreciated..
15 volts on your car is not an issue.
If you have the whistle and it disappears with removing them oil fill cap then I would suspect the pcv trap assembly like my video shows. Good luck
Ok thankyou! Do you think it hurts to drive it with the whistle? We are about 400mi from home on vaca.
@@tylerwingard5742 my concern is the high amount of vacuum created. This can potentially disturb engine seals.
FCP will be the best deal on the part, however I would suspect a dealer may stock it.
It only takes a short amount of time and a few wrenches to do. Could be done in a parking lot
@@69nitronova thanks so much for the help! This morning when I started it had stopped so will see what we can figure out! Being labor day wknd it's hard to find a part for it.
help
What would be a fair estimare for such a repair if taken to a repair shop?
The part takes around 30 minutes to change. I would suspect most shops will want 1 hour diagnosis time. So compare that to the local labor rate. It's an easy Do It YOURSELF like the video shows. Best of luck
this extra noise i understud, but hmm what noisy engines 2.0L new volvo, i test xc60 T5 2019 its work like diesel, i think its only my car engine work like diesel, but in video same, very bad for luxury car
The extra noise you speak of comes from the high pressure fuel system making the injectors much noisier. This is becoming common place in the industry.