Quantcast
AWD - My V70 wont go past 40 mph

Volvo AWD V70-XC70 Forum

INDEX FOR 8/2019(CURRENT) INDEX FOR 5/2003 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 

My V70 wont go past 40 mph V70-XC70 2002

Hi BB team. My 2002 V70 turbo wagon (175K miles) has recently shown some performance issues. Occasionally, the car will not go faster than 40 mph, despite pushing the gas pedal to the floor. Almost like there is a speed throttle. After turning the engine off, the car will run normally. When the car has this problem, the engine does not run rough, and seems to shift gears OK - it just won't go faster than about 40 mph. No other symptoms, no CEL.

Any ideas?

Thanks,

Bernie





Cut and paste link:



  REPLY TO THIS MESSAGE    PRINT   SAVE 

My V70 wont go past 40 mph V70-XC70 2002

Drives normally up to 40mph, or is it lacking power also? Sounds like it could be going into a "limp mode" to protect from damage after reading too high boost pressure.





Cut and paste link:



  REPLY TO THIS MESSAGE    PRINT   SAVE 

My V70 wont go past 40 mph V70-XC70 2002

No, the car is not loosing power at all. Revs fine and runs smooth.





Cut and paste link:



  REPLY TO THIS MESSAGE    PRINT   SAVE 

My V70 wont go past 40 mph V70-XC70 2002

I'm with rehsper though I've never experienced "limp home" mode.

The expected advice is to have your codes read COMPLETELY and COMPETENTLY. Either by a dealer or an experienced mechanic with VIDA. You're likely not to have one of the latter nearby.

Don't let a monkey blindly throw parts at the problem.

It may be a failing manifold pressure sensor.

Perhaps a faulty wastegate circuit (valve itself or lines to it) can cause your symptom. I experienced such a problem with a Saab where the charge air pipe popped off the ETM because boost pressure was allowed to go too high. However, my limp home stuff wasn't activated.

Good luck
--
Our 3rd V70





Cut and paste link:


<< < > >>


Users marked in green are currently online.

©Jarrod Stenberg 1997-2016. All material except where indicated.


Brickboard.com is not affiliated with nor sponsored by AB Volvo, Volvo Car Corporation, Volvo Cars of North America, Inc. 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.

All participants agree to these terms.
Powered by Denizen - Custom Software for Enthusiasts