home | news | features | forums | product reviews | resources | photos | marketplace | contact
Page 1 of 2 12 LastLast
Results 1 to 10 of 17

Hybrid View

Previous Post Previous Post   Next Post Next Post
  1. 12-21-2009, 10:34 AM #1
    tlbv70
    tlbv70 is offline Junior Member
    Join Date
    Jul 2008
    Location
    Midwest
    Posts
    7

    Default 2002 V70 XC Misfire at Idle

    I have a mifire at idle. Here is what I have done thus far.
    1) New spark plugs (went non oem then replaced again with VOLVO plugs)
    2) New MAF sensor - replaced with BOCH
    3) New MAP sensor - had replaced with VOLVO OEM.

    The car is not hrowing any codes, but has a very rough idle. The dealer wants more money to figure this out. Problem got better after the MAP was replaced, but is now coming back.

    Where else can I look?
    Reply With Quote Reply With Quote
  2. 12-21-2009, 10:59 AM #2
    kain
    kain is offline Senior Member
    Join Date
    Apr 2009
    Location
    New England
    Posts
    241

    Default

    Seems odd to be sure that you are having a misfire but have no codes (even my old '97 Saturn threw codes with a misfire). How do you know one of the cylinders is misfiring?

    Have you tried replacing engine/transmission mounts? Have the engine/transmission mounts ever been changed?
    current: 2001 XC70 207,000mi, original tranny

    past: 1987 740GLE tranny...bleh
    past: 1979 240DL head-on collision
    Reply With Quote Reply With Quote
  3. 12-21-2009, 11:35 AM #3
    tlbv70
    tlbv70 is offline Junior Member
    Join Date
    Jul 2008
    Location
    Midwest
    Posts
    7

    Default

    I can hear the engine missing (sputter) and the tac bounces around. I have not replaced any of the mounts.

    The car did have codes before I had the MAP replaced. I don't remember what they are, but they are gone now.
    Reply With Quote Reply With Quote
  4. 12-21-2009, 11:43 AM #4
    billr99
    billr99 is offline Senior Member
    Join Date
    Mar 2008
    Location
    Western Head, Nova Scotia
    Posts
    3,089

    Default

    Coils?
    Western Head, NS CDN

    '08 BMW 750i (Black Sapphire)-204K kms to-date
    '05 XC70 (Lava Sand)-296K kms to-date
    '02 V70XC-gone @393K kms
    '05 V70R (Magic Blue)-120K mi to-date - gone
    '96 854R (Red)-real CDN-spec 5-speed R - gone @270k kms
    And other Volvos and misc. Euro stuff
    Reply With Quote Reply With Quote
  5. 12-21-2009, 12:28 PM #5
    tlbv70
    tlbv70 is offline Junior Member
    Join Date
    Jul 2008
    Location
    Midwest
    Posts
    7

    Default

    I did try coils. Bought one and worked my way down all five cylinders. However this method only replaced one at a time.
    Reply With Quote Reply With Quote
  6. 12-21-2009, 01:30 PM #6
    kamiar's Avatar
    kamiar
    kamiar is offline Senior Member
    Join Date
    Sep 2008
    Location
    Montreal, Canada
    Posts
    694

    Default

    Try removing the battery for 10 minutes to reset the modules etc and then re-connect (with right method) and see how it goes...
    Reply With Quote Reply With Quote
  7. 12-21-2009, 02:21 PM #7
    howardc64
    howardc64 is offline Senior Member
    Join Date
    Mar 2005
    Location
    Pacific Northwest
    Posts
    1,927

    Default

    Quote Originally Posted by tlbv70 View Post
    2) New MAF sensor - replaced with BOCH
    Is your new MAF part number is 0280218088 X-Ref: 8670398? which is for an 02-07 XC70

    I ask because Volvo uses several different part numbers that look pretty much identical. I mistakenly used an 02 one on my 01 V70 T5, had weird idle problems.

    Here is ipd MAF list FYI

    http://www.ipdusa.com/Volvo-V70XC70-...-380-381-5351/
    Past Volvos : 01 V70 T5, 01/02 V70XC, 02 V70 NA, 00 V70XC
    Current EV/Hybrid : 13 Tesla S85, 11 Gen3 Prius
    Friends cars under my care 17 Audi A4 Quattro DSG (B9) 05 Audi A4 Manual 6sp Quattro (B7) 04 e320 V6 Auto, 05 Accord 2.4, 08 Element 2.4, 08 Camry Hybrid
    Past Others : 01/03 VW MK4 Turbo/NA/01M. Gen1 Prius, Gen1 CRV, Gen2 Rav4, 02 Town&Country, 06 Corolla, 12 Audi A4 Quattro (B8), 07 Civic 1.6
    https://sites.google.com/view/howardsvolvos
    Reply With Quote Reply With Quote
  8. 12-21-2009, 02:23 PM #8
    Forkster's Avatar
    Forkster
    Forkster is offline Forum Mod & VoVo nut
    Join Date
    May 2007
    Location
    Calgary Alberta
    Posts
    1,344

    Default

    Should be coils. Have you filled up at a new gas station recently? Are you using premium fuel? What's the mileage? Have you replaced the fuel filter recently?

    Reply With Quote Reply With Quote
  9. 12-21-2009, 11:22 PM #9
    slowflyer
    slowflyer is offline Senior Member
    Join Date
    Mar 2004
    Location
    Washington State
    Posts
    281

    Default

    If you are having a misfire you should be getting a code. I recently had a bad coil. My code was 0303, misfire cyl 3.
    Current: 2010 XC70 T6 Caspian Blue/Grey

    Previous: 2001 V70XC Nautic Blue/Grey 218K Volvo High Mileage Club,
    Reply With Quote Reply With Quote
  10. 12-22-2009, 01:35 AM #10
    RockitShip
    RockitShip is offline Senior Member
    Join Date
    Aug 2009
    Location
    Maine, Bath
    Posts
    689

    Default

    Quote Originally Posted by slowflyer View Post
    If you are having a misfire you should be getting a code. I recently had a bad coil. My code was 0303, misfire cyl 3.
    I agree, he should be getting a code for a misfire.
    Unless he's mistaking rough running for misfiring.

    May as well check and/or replace all vacuum lines, etc.
    Reply With Quote Reply With Quote
Page 1 of 2 12 LastLast
« Previous Thread | Next Thread »

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

Forum Rules