Volvo AWD V70-XC70 Forum

INDEX FOR 10/2025(CURRENT) INDEX FOR 5/2001 V70-XC70 INDEX

[<<]  [>>]


THREADED THREADED EXPANDED FLAT PRINT ALL
MESSAGES IN THIS THREAD




  REPLY TO THIS MESSAGE Replies to this message will be emailed.    PRINT   SAVE 

1998 V70 T5 engine backfires then stalls V70-XC70 1998

posted by  willst5 on  Wed Jul 21 06:11 CST 2010
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Tue Nov 8 20:44 CST 2011
[RELATED]

The engine suddenly stalled while I was accelerating to merge into traffic. When I tried to restart the engine, it idled roughly, backfired and stalled again after about 1-2 seconds. No codes were set and disconnecting the MAF sensor made no difference. The fuel filter and timing belt were replaced about 20,000 miles ago. Car has 170,000 now. Has anyone had a similar problem and can suggest a potential solution? Thanks.








  •   REPLY TO THIS MESSAGE    PRINT   SAVE 

    1998 V70 T5 engine backfires then stalls V70-XC70 1998

    posted by  someone claiming to be ksg on  Wed Jul 21 11:18 CST 2010 [RELATED]

    May I suggest looking for a loose vac hose or air intake leak (a serious one)? I know these normally set codes - but maybe worth a look anyway?

    The other thing to check is a loss of main voltage - e.g. open connection to main relay or fuel relay - intermittent or loose connection in ignition circuit, etc - these things also might not set a code right away. Did any of the accessories - stereo, window winders, etc. stop working at or near the same time?








    •   REPLY TO THIS MESSAGE Replies to this message will be emailed.    PRINT   SAVE 

      1998 V70 T5 engine backfires then stalls V70-XC70 1998

      posted by  willst5 on  Wed Jul 21 11:45 CST 2010
      Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
      last visit: Tue Nov 8 20:44 CST 2011
      [RELATED]

      A few weeks ago the V70 set multiple cylinder misfire codes when I started the car. At that time, I replaced the air pump and the battery. The pump was full of water The battery was over 3 years old and seemed to be getting weak. After the battery change the misfire code never returned. The V70 was running great up till the the point the engine stalled. It's possible I accidentally loosened a hose working in the engine compartment and it worked itself free. I'll take a closer look. Thanks.








  •   REPLY TO THIS MESSAGE Replies to this message will be emailed.    PRINT   SAVE 

    1998 V70 T5 engine backfires then stalls V70-XC70 1998

    posted by  KlausC on  Wed Jul 21 08:55 CST 2010
    Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
    last visit: Fri Oct 24 10:15 CST 2014
    [RELATED]

    A backfire is usually caused by timing, but check the distributer cap and rotor first. Also the cam position sensor, make sure the wires do not get close to the plug wires.

    Let's hope it is not one of the valves.

    Klaus
    --
    Why are Volvos so endearing? Its just a car.








    •   REPLY TO THIS MESSAGE Replies to this message will be emailed.    PRINT   SAVE 

      1998 V70 T5 engine backfires then stalls V70-XC70 1998

      posted by  willst5 on  Wed Jul 21 11:21 CST 2010
      Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
      last visit: Tue Nov 8 20:44 CST 2011
      [RELATED]

      Thanks Klaus, I was originally thinking my fuel pump was failing or the timing belt jumped a tooth. I'll inspect the cap/rotor and cam position sensor too.







<< < > >>



©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.