Volvo

Have Volvo questions? Ask a Volvo mechanic for answers ASAP

Ask an Expert,
Get an Answer ASAP!

M NAME OS ***** ***** I HAVE A 2012 VOLVO XC90 LOUD NOIS…

Customer Question
M NAME OS *****...

M NAME OS ***** ***** I HAVE A 2012 VOLVO XC90 LOUD NOIS WHEN IN IDLE RAISE RPM AND IT STOPS

Mechanic's Assistant: Thanks. Can you give me any more details about your issue?

WHEN CAR IS IN IDLE MAKE A SHUDDERING NOIS THAT HURTS YOUR EARS WHEN IN THE CAR RAISE IDLE TO 1000 RPM THE IT STOPS

Submitted: 2 years ago.Category: Volvo
Show More
Show Less
Ask Your Own Volvo Question
Answered in 4 hours by:
1/26/2016
Volvo Mechanic: Matt, Engineer replied 2 years ago
Matt
Matt, Engineer
Category: Volvo
Satisfied Customers: 23,450
Experience: Mechanical Engineer with 20 years experience in the auto industry, 8 yrs in formula 1 engine testing
Verified

Hello

This could be an airleak after the airflow meter, any air dragged in here isn't 'seen' by the ECU and so not compensated for and can lean the engine out and can also allow the engine to rev up when not desired causing rough running.

As its a mechanical fault it tends not to turn on the fault light and you can sometimes hear a 'hissing' noise with the engine running.

Check the hose clips for tightness and inspect the trunking for any cracks or splits and also all the vacuum system, the small bore pipes and fittings for cracks and missing parts.

The best way to locate a leak is to have the engine running and warm and then spray lighter gas /propane around each joint in turn. If the engine rev's up you've found your leak.

Now you might think that spraying lighter gas around a hot engine isn’t wise, however the flash /ignition point of gas is about 400°C so you need a naked flame or spark to set it off and I’ve used this method for many years without incident.

Work your way through each possible joint one at a time and you should find it. I use a slightly flattenedpiece of brake pipe and some rubber hose from the can of lighter gas to provide a spraying 'wand' and allow a direct blast of gas into each area, especially those difficult to reach with large implements.

It’s also worth getting the fuel pressure checked as if this is low due to a blocked filter or faulty regulator or even a poorly pump will all result in insufficient fuel being delivered to the engine

Might also be worth checking the wiring and connector to the airflow meter for any signs of corrosion or damage. you can do a quick fault find if you unplug the meter and run the engine without it.

if the engine condition is the same then chances are the meter or the connection to it is faulty

Air leaks are very temperature dependent as gaps can open or close up as things expand with heat, so the weather and engine temperature can effect them.

This leads them to be quite intermittent in the case of mild leaks

Ask Your Own Volvo Question
Volvo Mechanic: Matt, Engineer replied 2 years ago

Hi

do you still need help?

Bear in mind that the site takes a deposit from you at the beginning and this is held by the site until you rate my answer at which point the cash is split between the site and the expert. I am only paid for my work on this question if you rate my answer, using the star system at the top of the screen. Please do not forget! Thank you

Ask Your Own Volvo Question
Was this answer helpful?

How JustAnswer works

step-image
Describe your issueThe assistant will guide you
step-image
Chat 1:1 with a volvo mechanicLicensed Experts are available 24/7
step-image
100% satisfaction guaranteeGet all the answers you need
Ask Matt Your Own Question
Matt
Matt
Matt, Engineer
Category: Volvo
Satisfied Customers: 23,450
23,450 Satisfied Customers
Experience: Mechanical Engineer with 20 years experience in the auto industry, 8 yrs in formula 1 engine testing

Matt is online now

A new question is answered every 9 seconds

How JustAnswer works:

  • Ask an ExpertExperts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional AnswerVia email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction GuaranteeRate the answer you receive.

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

The nearest Volvo dealer is 160 miles away. Best $15 bucks I have spent in a long time!

Paul MCorpus Christi, TX

I would (and have) recommend your site to others I was quite satisfied with the quality of the information received, the professional with whom I interacted, and the quick response time. Thanks, and be sure that I'll be back whenever I need a question answered in a hurry.

Stephanie PElm City, NC

used your service this weekend with "Trecers" help. thank you ,thank you, thank you. replaced an A/C fan motor. Local Auto Zone had part. $15.00 "tracer" fee and $40.00 for parts, I saved several hundreds of dollers at a shop. i will recommend you and use you in the future.

David L.Richmond, TX

9 dollars, 2 hours of my time, and I drove away. Your diagnosis was right on the mark. Thank you so much.

PhilMarysville, CA

Lurch. Thank you very much. I had real doubts about this website but your promptness of response, quick followup and to the point answer with picture was incredible.

CharlesWalnut Creek, CA

As a single woman, I really appreciate an excellent and affordable opinion.
Thank you Geordie, I will not hesitate to contact justanswer in the future!

SueCharleston, WV

Another great insight to what may be the problem. I will have my mechanic take a look at it tomorrow. Thanks again, Frank...you do indeed know your stuff.

JimCastleberry, FL

< Previous | Next >

Meet the Experts:

Enes

Enes

VOLVO Master Technician

5,094 satisfied customers

18+YEARS WITH VOLVO AS THE MASTER VOLVO MECHANIC&Ase

Andy

Andy

Volvo Expert Technician

3,742 satisfied customers

One of only a handful of ACTUAL Volvo dealership technicians on JA, ASE Master Certified with L1

volvoexpert1

volvoexpert1

ASE Certified Technician

1,001 satisfied customers

Volvo Master Technician with 15 years excusively with Volvos. Also ASE L1certified for over 10 years.

dramey

dramey

ASE Certified Technician

669 satisfied customers

have worked on volvo's for 4 years and am a ase master mechanic. current shop foreman

Chris (aka-Moose)

Chris (aka-Moose)

Technician

578 satisfied customers

16 years of experience

Tim Mohr

Tim Mohr

ASE MASTER TECH

531 satisfied customers

30 YRS EXPERIENCE, FOREIGN AND DOMESTIC, GAS AND DEISEL

Jim B

Jim B

ASE Certified Technician

504 satisfied customers

40 years Import and domestic AAA Approved Shop owner 30 yrs

< Previous | Next >

Related Volvo Questions
Valve tick in 2007 volvo xc90. Passenger side of motor, a
valve tick in 2007 volvo xc90 JA: Where exactly do you think the noise is coming from? And how long has this been going on? Customer: passenger side of motor, a month or so JA: Are you fixing your XC9… read more
EuroDoc
EuroDoc
Owner
Bachelor's Degree
1 satisfied customers
2005 Volvo S40, auto transmission, 5 cyl 2.4L, When making a
2005 Volvo S40, auto transmission, 5 cyl 2.4L, When making a right turn a loud growl / shudder noise coming from Right Front tire area. When sitting still, placing car in drive, while holding the brak… read more
Andy
Andy
Volvo Expert Technician
Vocational, Technical or Trade Scho
3,742 satisfied customers
My 2007 Volvo XC90 make gh pitch noise after warm up. When I
My 2007 Volvo XC90 make high pitch noise after warm up. When I pull out dip stick for oil or open oil cap, noise stop. I know it has something to do with PCV box. Where is located in my car and which … read more
Andy
Andy
Volvo Expert Technician
Vocational, Technical or Trade Scho
3,742 satisfied customers
Volvo XC90 2.5T: I have 2007 xc90 2.5 engine and looking for
I have 2007 xc90 2.5 engine and looking for new alternator and tensioner. Can you please recommend what brand and where to buy online?! Car chasis #yV1cz595771360430… read more
Andy
Andy
Volvo Expert Technician
Vocational, Technical or Trade Scho
3,742 satisfied customers
Volvo XC90: Good day sir.. My wife has 2007 XC90 and just called
Good day sir.. My wife has 2007 XC90 and just called and stated its making a loud whistle noise. It is only at idle or nonload on motor.. I asked her to pull the dipstick and it stopped she said but i… read more
Andy
Andy
Volvo Expert Technician
Vocational, Technical or Trade Scho
3,742 satisfied customers
Volvo XC90 2.5T: I have a 2012 Volvo XC90 and just this morning
I have a 2012 Volvo XC90 and just this morning after starting the engine and beginning to drive I noticed the brake pedal was very hard to push and it even gave me a scare as the car was not stopping … read more
Chris (aka-Moose)
Chris (aka-Moose)
Technician
Vocational, Technical or Trade School
578 satisfied customers
Volvo XC90: I just purchased an 07 Volvo XC90 V8 AWD. I soon
I just purchased an 07 Volvo XC90 V8 AWD. I soon noticed it shaking at 1500 rpms. I could stop the shaking by increasing the rpms, either by stomping on the throttle, or by manually downshifting in ge… read more
Edward Clayton
Edward Clayton
Associate Degree
1,033 satisfied customers
I have a 2004 volvo xc90. When the car goes below 1000 rpm
I have a 2004 volvo xc90. When the car goes below 1000 rpm it starts to jump and stall. Plugs and fuel filter has been changed. Does this sound like a problem with the coil packs?… read more
Enes
Enes
VOLVO Master Technician
Vocational, Technical or Trade Scho
5,094 satisfied customers
Volvo V40t: i have a 2002 Volvo v40 1.9 turbo which runs relatively
i have a 2002 Volvo v40 1.9 turbo which runs relatively well 60% of the time, the other 40% it has issues like stalling at stop signs, low idle fluctuating from 300-900 rpm, so I raised the idle to 12… read more
Andy
Andy
Volvo Expert Technician
Vocational, Technical or Trade Scho
3,742 satisfied customers
Volvo XC90 T6: My 03 XC90 is making a pretty loud clicking
My 03 XC90 is making a pretty loud clicking sound. I can only hear the sound if its under a load at low speeds. When I let of the gas it stops. I don't feel any vibration and the tranny seems to be sh… read more
volvoexpert1
volvoexpert1
ASE Certified Technician
Bachelor's Degree
1,001 satisfied customers
Volvo XC90 3.2: 2007 Volvo XC90 auto trans- Shudder on acceleration,
2007 Volvo XC90 auto trans- Shudder on acceleration, worse at hard acceleartion. Slack/lash in drivetrain. Similar to two sprockets connected by a roller chain that is too long with no idler. Happens … read more
Brian
Brian
Associate Degree
1,806 satisfied customers
2002 Volvo S60: 72,000 miles on it..park..loud..thumping sound
Hello - I have a 2002 Volvo S60 with 72,000 miles on it. I basically just use the car to drop my son off at daycare on the way to the train station. When the car is in park or stopped (idle) - The eng… read more
volvoexpert1
volvoexpert1
ASE Certified Technician
Bachelor's Degree
1,001 satisfied customers
2012 XC90: as its full size..shoe skate look a lot of suvs have
I am interested in a Volvo 2012 XC90. Edmunds says they will discontinue this model after 2012. I like it as it's full size and doesn't have that shoe skate look a lot of SUV's have. Should I be conce… read more
Andy
Andy
Volvo Expert Technician
Vocational, Technical or Trade Scho
3,742 satisfied customers
Volvo XC90 V8: shuddering..the Automatic Transmission going..Forums
I have a Volvo XC90 V8 2005 with 139K miles on it. It is having shuddering issues with the Automatic Transmission going from 2 to 3, & 3 to 4. I have researched this quite a bit and have read the Volv… read more
Tim Mohr
Tim Mohr
ASE MASTER TECH
Master's Degree
531 satisfied customers
2008 Volvo XC90: AWD w/ 20,500 miles on it..hills..passenger seat
Good morning, I have a 2008 Volvo XC90, 3.2 AWD w/ 20,500 miles on it. When accelerating from stop on hills or under "normal" acceleration the car shudders with the 2-3 upshift (from 2000 - 4000 rpm) … read more
Tim Mohr
Tim Mohr
ASE MASTER TECH
Master's Degree
531 satisfied customers
I know that the Volvo-installed aftermarket Bluetooth product
I know that the Volvo-installed aftermarket Bluetooth product that came with my new 2008 XC90 3.2 no longer works because the version of Bluetooth software it has is not compatible with later Bluetoot… read more
Enes
Enes
VOLVO Master Technician
Vocational, Technical or Trade Scho
5,094 satisfied customers
volvo s80: non turbo..low oil pressure..idle is not steady at 800 rpm
I have a volvo s80 2000 non turbo ,in idle the eng run in rpm from 1000 back to 600 or 550 rpm , when reach 600 rpm momentarely show low oil pressure ,and msg stop eng. what must be that the eng in id… read more
hauto
hauto
Operate own repair shop
Bachelor's Degree
1,637 satisfied customers
1996 volvo 850: damp..park..the idle revs..2000 rpm
I have a 1996 volvo 850 nonturbo. In the morning ,especially when damp the car will not idle normally. If I start off for a short time, then stop and place the car in park with motor still running the… read more
Mike, volvo Tech
Mike, volvo Tech
Shop manager,Technician, Foreman
Vocational, Technical or Trade Scho
1,303 satisfied customers
Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Show MoreShow Less

Ask Your Question

x