Question about 2008 Volvo XC90

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I have a 2008 Volvo XC90 3.2L AWD. The problem that I have is that when I start the car sometimes it doesn't start on the 1st try or if it does start it sputters and I shut it down. When I go to start the SUV the 2nd time it always starts up and have no problems. There is NO check engine light or any other service lights. What could be the problem? sensor? some kind of vacuum leak? I checked the air filter and it is clean. thanks

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Sorry but without a code reading its difficult to diagnose as some of these faults are related to the ECU not processing the timing correctly so i would advise you to book it into the dealers and ask for a estimate ,these modern cars are using complicated electronics with encrypted software making it a dealer only job .Sorry for not being able to provide a nice fixya quick fix answer

Posted on Aug 13, 2010

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This is an indication that your fuel system has a problem, possibly the fuel pump or a leaky injector. When you shut the engine off, there should be a certain amount of residual pressure that is held in the fuel line between the pump, which is in the tank, and the fuel injectors, which are mounted on the engine. If the fuel is allowed to flow back to the tank or out an injector, then the engine will usually start briefly and then stall, and then start normally because it took a few seconds to build line pressure. The most common cause is a bad pump, sometimes a check valve near the pump. The way to test for this is to connect a fuel pressure gauge to the system and watch it to see if it bleeds down. One end or the other can be blocked off to eliminate the injectors or the pump, but as I said, the fuel pump is the most common cause, especially if the mileage is getting high.

Hope this helps,
Dave

Posted on Aug 13, 2010

  • Dave  C
    Dave C Aug 13, 2010

    What is the mileage on this vehicle?

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  • Volvo Master
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SOUND LIKE NEED A FUEL FILTER.FUEL INJECTORS NEED CLEANING.

Posted on Aug 13, 2010

  • vman004ever Aug 13, 2010

    how do you clean the fuel injectors

  • Jonah Oneal Aug 16, 2010

    CLEAN FUEL INJECTORS BY FILLING UP GAS TANK AND PUTTING A BOTTLE OF FUEL INJECTOR CLEANER IN GAS TANK.DRIVE AROUND ALLOWING THE FUEL INJECTOR CLEANER CLEAN FLUSH OUT FUEL INJECTORS.OR THE VOLVO DEALERSHIP CAN FLUSH OUT FUEL INJECTORS.ALSO REPLACE FUEL FILTER.

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I am working on your problem....Guru.....Saailer

Posted on Aug 13, 2010

  • David Burbee
    David Burbee Aug 13, 2010

    Hello! I suspect the Manifold Absolute Pressure (MAP) sensor. I need some clarification. Does the engine start normally on the second attempt, every time? If the engine is hot, will it always start on the first attempt; or is only on a cold engine start-up? Do you have a voltmeter?


    You can do a visual on the Map Connector. Is it loose, Are wires loose in the connector, frayed or damaged. The Map Is held in-place by two bolts and is located on the intake. It has a three wire connector with the following colored wires; Green/Red, Brown/Black and Violet/White.


    If you have a meter; To test, push a safety pin into the rear of the in-place connector on Green/Red and Violet/White. Pace + probe of meter (set to read +5 volts) on the Green/Red. The - probe on Violet/White. Turn the ignition key to on do not start. Perform test when fault is most likely to occur. Should read 4 volts. Turn key off then on and record reading.


    Send a comment. Saailer

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First thing is that the Ignition module might need to be replaced. I also would think the fuel pump might be a problem
Does it fire right away or does it crank a while before it starts the first time? If it cranks a while it may be the fuel pump getting weak. or a pressure leak in the fuel system... try turning the key to the RUN position, but don't crank. see if priming the fuel pump first, then starting, helps the problem. If this works by priming the pump for 2-3 seconds first, then you have a small pressure leak somewhere on the fuel line.
Let me know what you find out. Benjamin

Posted on Aug 13, 2010

  • vman004ever Aug 13, 2010

    i checked my spark plugs today and found oil all over one of my plugs. what could that be

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This sounds to me like a stuck EGR valve. That is an exhaust gas return device that send exhaust back into the engine. This reduces emissions. When they stick like that you get the sputtering

Posted on Aug 13, 2010

  • vman004ever Aug 13, 2010

    i checked all my spark plugs today and found oil on one of them. what could that be

  • Brad Brown Aug 13, 2010

    Oil on the plugs is either leaking valve guides and seals or bad rings. The way you tell is look for smoke when you start it, If there is smoke at start up, it is the valves. If there is none look for smoke when you accellerate. If there is smoke when you are speeding up, then it is bad rings, You can also do a cylinder leak test with special equipment but that requires a shop.

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Hi. Most likely you need to change the fuel filter. J.

Posted on Aug 13, 2010

  • vman004ever Aug 13, 2010

    car only has 35,000 miles. i found some oil on one of the spark plugs today when i checked them all. what could that be?

  • Joe Hogan Aug 13, 2010

    let me know how u make out.

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  • Volvo Master
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Most likely the fuel pump can't deliver the necessary fuel pressure from the first time. Start by replacing the fuel filter and run an injection cleaner additive - both are cheap fixes that are easy to do by yourself. If the situation doesn't improve visibly then the fuel pump will have to be replaced.

Posted on Aug 11, 2010

  • vman004ever Aug 13, 2010

    i checked my spark plugs and found oil in one of them. what does that mean?

  • Azrael SRL Aug 13, 2010

    It means that your cylinder head gasket is cracked and must be replace - this is going to be very expensive, be prepared.


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  • 346 Answers

Unfortunately, in my experience, when problems like this occur, they're nearly impossible to trace until the problem sensor manifests itself in another way, as well.

What I've found is that it's usually just a slow-acting sensor/output device, such as the idle control, or sometimes the ignition coil packs.

Is the vehicle still under warranty? If so, return to the dealer before attempting any service repair yourself. If you're not sure, ask the dealer - they can run the VIN and tell you if there is an existing warranty on the vehicle. Just because you bought it used (if you did) doesn't mean it's not covered.

If it's not, return to the dealer and ask them to ensure that all recall/update work has been performed up to date. This work is normally free of charge, and addresses issues common to the vehicle/configuration of which you are currently in possession.

Those things said, a few things you can try on your own are:

  1. Dielectric grease at both ends of the spark plug boots/wires.
  2. While the engine is running, remove the rubber hose from the throttle body, and spray carb cleaner through the hole in front of the throttle plate. This is the air channel for the idle circuit, and may be dirty/gummed up.

Posted on Aug 11, 2010

Replace the dirty fuel filter and run some fuel injection cleaner next time you fill the gas tank up. If it is still starting hard after you have replaced the fuel filter then replace the spark plugs and spark plug wires. Your vehicle is only two years old and I do not think it would have vacuum problems or a failed sensor. Even though you do not see the check engine light on you could still hook it up to an OBD II reader and see if it displays any trouble codes.

Posted on Aug 11, 2010

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  • Volvo Master
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Hi.

Problem can be either a vaccum leak or a defective PVHS (Vacumm Hub Solenoid). First test the vacuum using a gauge (Lisle 20300) in vacuum lines while heating the lines or spraying the lines with spray lube (Multi-Purpose lube).

After ensuring that there is no leak, go for the solenoid. The solenoid can be tested reading Ohms at its contacts and ensuring that there is continuity.

Vacuum leaks are common cause for this problem, but there are more faults that can cause erratic idling and startup problems.

If the vacuum system is fine check IAC (Idle air control) valve, and the MAF and AIT sensors, both located in the air intake. This parts determine the amount of air to be used in the mixture and can affect startup when the car is cold.

Note: to make the startup easier try turning the ignition key in position one and waiting 30 or 40 seconds before cranking. If car does not start, do not insist for too long, turn off, turn back in position one, wait some times and start again.

Regards.

Ginko.


Posted on Aug 10, 2010

  • vman004ever Aug 11, 2010

    car idles good once started so i don't think it's a vacuum problem

  • Ginko
    Ginko Aug 11, 2010

    Re:car idles good once started so i don't think it's a vacuum problem

    This affirmation has no ground.
    A small vacuum leak affects use off recirculated gas. recirculated gas makes a bigger difference when idleing and may not affect driving.

    Moreover I told you to check IAC, MAF and AIT, you disregarded completely that part.

    To that you can add fuel circulation problems, dirty injectors etc. I do not think that is your case.

    Sorry that my help had been refused, and sorry about the negative feedback. Throwing in some more of my personal time I could have added more detail.

    On your request the matter will be passed to a different expert.

    Goodbye and goodluck.

    Ginko.


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How many miles are on the vehicle? How long have you had this problem? How long have you tried letting it run when it starts the first time and sputters have you tried giving it gas or anything to let it work itself out? When was the last tune up as well? Once I have more information I can assist you further.
Thank you,
Lee

Posted on Aug 10, 2010

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  • 382 Answers

If it was a sensor or a vacuum leak, you would be getting an engine code. On the other hand, a fuel pump that is failing will not give a code but will give the exact same symptoms that you are describing. until the fuel pump goes all the way out, the problem can be very intermittent, until it fails completely and leaves you stranded.

Posted on Aug 10, 2010

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  • Volvo Master
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Its possible that you need to replace the tps sensor and the mass air flow meter.

You can test the MAF to know for sure. If you unplug the MAF and start the car and it runs and drives better, it is the MAF. The MAF (Mass Air Flow Sensor) is located on top of the air box between the air box. There is an electrical connector that you can unplug and then start the car.


I would be suprised if your TPS was bad, its possable that you just have a bad vacume leak.

Make sure you only buy the OEM (Bosch) sensors.


Posted on Aug 09, 2010

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!st step is ask all the drive who fill up the car this question.
DO YOU TOP OFF THE GAS WHEN FILL UP?

You should not top off and keep pumping when the gas filler stopped.
Extra gas will eventually enter the EVAP emission and cause cold start problem.
=== The fix two fold.
1) ask all driver DO NOT TOP OFF THE GAS TANK
2) VENT THE EVAP SYSTEM over night (OUTDOOR ONLY) locate the charcoal canister (evap system) under the hood. disconnect the hose let it vent overnight reconnect and monitor the starting problem.
Please give me an update after you vent the evap system by pressing ADD COMMENT button on the upper right.

Posted on Aug 09, 2010

  • vman004ever Aug 09, 2010

    this is definetly not the problem

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It sounds like your fuel pump is getting ready to quit you,Its giving you a warning

Posted on Aug 09, 2010

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  • 270 Answers

Hello Friend:

#1) Change your Fuel filter.

#2) Check ALL the Vacum Hoses and Lines to and from your Carb.Make sure there are none Cracked or Off.

#3) Check All the electrical connections to your carb. make sure your getting Votage to all (with key on use a 12 Volt Tester).

#4) If all the Above check out ,Look at your Wires to Ignition make sure they ae connected good and not corroted.Coils also.

#5) It really sounds like a Lean Fuel Mix. If it is you either have a Plugged Filter or a Line to carb. Bad. If none of the above solve the problem, Try turning your Ignition key on and off a few times then Leave it on for a couple minutes and then turn key All the way to Start.

#6) its Very possible that your not getting enough Fuel at First Try or you have a Interment Ignition Problem at your Coils or Even wires or Spark Plugs.

#7) Besure to DOUBLE CHECK all your fuses and Relays.

I hope this gets you going and with no more problems.

Thanks for using FixYa From: d_hubbs Please let me know how my Solution Helped you by Voting on the Quality of my Solutions:

Posted on Aug 08, 2010

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  • Volvo Master
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Sounds like you have a fuel pump that is going bad, and over time the fuel is draining back into the tank.

You might want to get it replaced before it goes bad completely and leaves ya stranded.

Posted on Aug 08, 2010

  • vman004ever Aug 08, 2010

    wouldn't that be a check valve not the fuel pump itself, because the fuel pump works

  • Sean Wright
    Sean Wright Aug 08, 2010

    The check valve is internal in the fuel pump

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Could be dirty fuel lines or dirty spark plugs
Do a basic engine service Such as replacing Oil Filter and replace spark plugs and replace engine oil, Then Run an fuel system cleaner through, Its cheap and you just place the fuel cleaner in fuel tank when next filling up with fuel and run car as normal and it will clean the fuel lines over a short period of time if you use car a-lot.
After that it should eliminate any basic problems which may cause it to fail to start the first time every-time.

Posted on Aug 08, 2010

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I would recommend first doing or getting a tune up and while your tuning it up check the choke and the fuel pressure. It might just be the station your buying your gas from doesn't see enough gas so the gas is stale.

Posted on Aug 07, 2010

  • vman004ever Aug 08, 2010

    definetly not stale gas

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Does it run okay after it starts?You said start up and have no problems so I guess that means okay?Do you press down on the gas when you try to start it?Please let me know and I will try to figure this one out.

Posted on Aug 06, 2010

  • vman004ever Aug 07, 2010

    it runs good after it starts...i do NOT press down on the gas when i try to start it. A friend of mine mentioned possible the fuel injuector leaking into the spark plugs, could that be a possibility? it usually starts bad after standing for several hours.

  • Greg McCarthy Aug 08, 2010

    Since it runs fine after you get it started,I would say a vacuum problem is not likely or it would always sputter.I kind of figured everyone knew about not pressing the gas while starting,but your problem sounded like that could have been it.It's a 2008,you should not even have a problem such as this yet.It really doesn't sound like an airflow problem either since it goes fine also after the 2nd try.The fuel injector leaking is plausible the way you describe it as a sputter,too much fuel.If there were not enough fuel it would backfire.This is somewhat puzzling but I would say since it runs fine,the problem is probably in the start system.I'll try to come up with something but if you get an answer from someone else,that's fine too.Greg

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If it was a vacuum leak it would act this way all the time. It may be a camshaft or crankshaft sensor. Usually when a sensor goes bad the check/service engine light turns on but sometimes on rare occasions it will not.
I would test those two sensors and circuits just to be sure. A faulty relay such as fuel pump relay could definately cause this problem

Posted on Aug 05, 2010

  • Nate Stansfield
    Nate Stansfield Aug 06, 2010

    My best guess from 10 years of experience would either be the crankshaft position sensor or it' starving for fuel. I would test both those.

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I am familiar with this problem and it is caused by a failed fuel pressure check valve in the outlet of the in tank fuel pump, it is a built in part of the pump, what happens is this, the fuel pressure bleeds down after shutdown and the fuel in the lines flows back into the fuel tank, when u try to start it the lines must fill back up for the pump to build pressure and the air that fills the lines must bleed through the fuel injectors,this causes the hard start problem, it is they most common issue for hard starting.

Posted on Aug 04, 2010

  • vman004ever Aug 05, 2010

    so what needs to be replaced? the whole fuel pump?

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Hi,

If the engine seems to sputter when this happens it could be a misfire issue. It could be a spark or fuel injection issue. It could also be several other things such as a transmission issue.

It could be a faulty fuel pump.I would rec to check fuel pressure. Fuel injected cars are very fuel pressure sensitive. Fuel pressure is very important and must be within specifications! But if the pressure is low, it does not mean the pump is bad. A plugged fuel filter, a pinched line, and low voltage at the pump can contribute to low fuel pressure. All three must be check before replacing the pump.You can get a fuel pressure gauge at a local auto parts store for cheap.It could also be a faulty throttle module.

I would still recommend a dealer to take care of this.

Good Luck!!

Thanks!!


Posted on Aug 04, 2010

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Hi! The MAF (mass air flow) sensor may be tripping thats why it starts bad at times. This is a sign that its bout to reach its break point so be aware of MAF sensor replacement soon. Hope this helps and have a good one!

Posted on Aug 04, 2010

  • 1 more comment 
  • dj_relly999
    dj_relly999 Aug 05, 2010

    Hi! Hows it going?

  • dj_relly999
    dj_relly999 Aug 09, 2010

    Hi! The MAF (mass air flow) sensor may be tripping thats why it starts bad at times. This is a sign that its bout to reach its break point so be aware of MAF sensor replacement soon. Hope this helps and have a good one!

  • dj_relly999
    dj_relly999 Aug 11, 2010

    Hi! May I ask hows the car going? Thanks!

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Get the fuel pressure checked. If its less then its quite possible that fuel pump needs to be replaced and fuel filter is got clogged.
There are some possibilities which you will have to check in this case:--
1) First of all check the power and voltage to the battery. With meter it will show exact 12 volt if the battery is charged. If the voltage is less get the battery charged at local auto repair shop. If the battery is internally drained and not getting charged then its time to replace the battery.
2) When you crank the car do you see spark coming at the spark plug? If no then its time to check the spark plugs and coil pack. If the spark plugs are not worn out and looks new then its time to check coil pack. The spark plug gets power to spark from coil pack.
3) The other thing to check in this case is the starter solenoid of the car. If the battery is charged and you start the car then it gives power to the starter to start the car. But if starter is faulty or not connected properly then car will not start.
4) The other thing to check in this case is fuel in the car. If there is fuel in the car then check the blockages in the fuel pump if the fuel pump looks proper then check the fuel filter above the fuel pump.
5) If all the above possibilities mentioned above checked out OK/perfect then it’s a electrical issue and the wiring's in the car needs to be checked. The car gets power from the battery to get started. so the wires from battery needs to be checked one by one.
---------
Other thing to check is Idle motor.
The idle motor sometimes takes a few seconds to reset after the ignition has been switched off.Also remove and clean the IAc valve .The IAC valve located in the throttle body.Also clean the Throttle position sensor.
If the sensors faulty then it has to be replaced.
Thanks. keep updated for any more query.you can rate this solution and show your appreciation.


Posted on Aug 04, 2010

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Hi!!

Change fuel filter.
Test EGR Valve, Vacuum Hoses and Control Circuit.

Good Luck!!

Posted on Aug 04, 2010

  • Rene J Solis Aug 08, 2010

    Check fuel pump pressure,



    Check vacuum hoses for cracks or loose fitting,



    Look for and remove the IAC (Idle Air Control) Selenoid, using a rag wet with fuel injector cleaner wipe selenoid clean, wrap the rag on a pen or pencil and insert it in selenoid housing with a twisting motion, until housing is clean. MAKE SURE NOT TO SCRATCH SELENOID HOUSING WALLS AND DO NOT APPLY FUEL INJECTOR CLEANER DIRECTLY INTO SELENOID OR HOUSING.



    Before reinstalling back the selenoid, carefully compress it using a cw/ccw motion, (do not use too much force).



  • Rene J Solis Aug 13, 2010

    The Idle Air Control Selenoid controls the mixture of gas and air going into the combustion chambers, if it is sticky or do not seat properly in the housing, you can get the problem you mentioned.



    To check the IAC selenoid, remove it and clean selenoid and housing using a rag wet w/fuel injector cleaner, to clean the housing, wrap the rag in a pencil or pen and insert it into the selenoid's housing making sure the far end gets cleaned also. Do not spray directly into selenoid or housing.

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    Nov 22, 2010 - 35 posts - ‎20 authors I'm trying to sell my 2005 XC90 with a V8 and all of a sudden it's ... It's my understanding that the Transmission fluid (the Volvo branded stuff) is actually ..... I've read that the TCM adaptives need to be (or should be) reset after ... TCM Fluid Counter Reset "Unsuccessful"
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    How To Reset The Tcm On A 2008 Volvo Xc90 - vouma.com

    www.vouma.com/how-to-reset-the-tcm-on-a-2008-volvo-xc90.html
    How To Reset The Tcm On A 2008 Volvo Xc90. [ QUICK DOWNLOAD ] ... 2005 volvo s80; 2003, 2004, 2005, 2006, 2007, 2008, 2009. Resetting scheduled .

Nov 04, 2015 | Volvo Cars & Trucks

1 Answer

How do i get my 98 volvo s7o to shift up past 2nd and fix the speedometer


Volvo Forum • New Transmission Shifting Issue - Matthews Volvo Site

www.matthewsvolvosite.com/forums/viewtopic.php?f=1&t=35574
Jan 11, 2011 - 14 posts I just completed replacement of the transmission in my son's 1998 V70xc. Problem: car runs and drives in reverse and 1st gear, but will not shift up to 2nd, etc. ... Does the upshift arrow light up if you move gear lever down in lower gears? ... use the original trans case and final drive since FWD gearboxes do ... Volvo Forum • 1998 V70 XC AWD Transmission Problems
14 posts
Jul 15, 2010
Volvo Forum • 1998 V70- Should I change Transmission ...
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Oct 01, 2015 | 1998 Volvo S70

1 Answer

1998 volvo v70 xc runs no power


The 1st things you need to do is have the engine control module scanned for fault codes and the fuel pressure tested for proper specs.

Jul 27, 2017 | 1998 Volvo V70

1 Answer

2002 Volvo S60 2.4T AWD SRS-AIRBAG SERVICE URGENT


you will have to have the SRS system reset at volvo dealer. should be around $85 for reset

Sep 24, 2009 | 2004 Volvo XC70

1 Answer

Volvo S60 AWD 2.5- car pulls sideways when driving on rain or sno


It's probably not that the wheels are moving at a different speed. It sounds like a simple alignment issue to me. Installing a bearing could have thrown it off. You should just have a simple alignment job done.

Jan 08, 2009 | 2002 Volvo S60

2 Answers

Volvo V70 xc AWD '98 - fuel filter change


Brandonlo168,

The fuel filter can be located under the carpeted cargo storage floor at the rear of the wagon. Remove the four 10mm bolts, remove the cover. You will then see a removeable plate to the right just behind the rear passenger seat. Fuel filter can be seen through hole in hole. Replaced from underneath wagon. Be sure to make sure lines are fully inserted onto filter. Check for leaks. No smoking, extinguisher handy. Note arrow on filter for correct fuel flow.

Ron

Dec 22, 2008 | 1998 Volvo V70

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