Volvo AWD V70-XC70 Forum

INDEX FOR 10/2025(CURRENT) INDEX FOR 1/2010 V70-XC70 INDEX

[<<]  [>>]


THREADED THREADED EXPANDED FLAT PRINT ALL
MESSAGES IN THIS THREAD




  REPLY TO THIS MESSAGE    PRINT   SAVE 

p 0410 V70-XC70

posted by  someone claiming to be Mikebox on  Fri May 9 03:52 CST 2008 [RELATED]

P0410 code keeps coming back.

About a year ago, I replaced the SAS air pump due to noisy operation (at same time, I drilled a hole in the housing to allow water to escape) Anyhow, the check engine light came on a few weeks ago. I read code p0410 then checked the vacuum elbows and lines; pulled the check valve and it seemed to be prety full of carbon etc so replaced it with new Volvo item reset the light and went on. It lasted several days and now the light is back on. I guess the only piece left is the vacuum switch/controller. What have you guys done to rectify this as I know the p0410 code is prevalent on the early 70 series and probably 850s too.







  •   REPLY TO THIS MESSAGE    PRINT   SAVE 

    p 0410 V70-XC70

    posted by  someone claiming to be Mikebox on  Tue May 13 03:40 CST 2008 [RELATED]

    I assume no one has had issues with this recently since not responses and search brings this stuff up from back around 2002.

    Anyhow, for whatever it is worth, I have narrowed it down to the check valve vacuum controller (located on the radiator shroud). The solenoid appears to have jammed open allowing vacuum to be appled to the check valve 100% of the time. Exhaust backflows to the air pump in much the same manner as if the check valve were stuck open. I have disconnected the vacuum controller, plugged the vacuum line and removed the relay for the air pump. the local dealer ordered the controller ($85) and said this is the first one of those they have ever had to order.

    BTW, I tested the relay (late 98 relays are in the main fuse box as relay #2, a Hella brand typical bosch type relay) applying current to pin 86 and ground to pin 85 gives off the audible click of the contact plate and continuity is achieved across the #30 and #87 contacts.








    •   REPLY TO THIS MESSAGE    PRINT   SAVE 

      p 0410 V70-XC70

      posted by  someone claiming to be Mikebox on  Wed May 14 07:15 CST 2008 [RELATED]

      By the way the offending oem part number is 1270389. I received it today and installed it also put the relay back in reset the CEL and am off. The check valve is not pumping exhaust gasses back into the air pump. Time will tell in the next few colder mornings if the pump system behaves as it should.







<< < > >>



©Jarrod Stenberg 1997-2022. All material except where indicated.


All participants agree to these terms.

Brickboard.com is not affiliated with nor sponsored by AB Volvo, Volvo Car Corporation, Volvo Cars of North America, Inc. or Ford Motor Company. Brickboard.com is a Volvo owner/enthusiast site, similar to a club, and does not intend to pose as an official Volvo site. The official Volvo site can be found here.