The message to which you are about to reply is shown first. GO TO REPLY FORM



 VIEW    REPLY TO THIS MESSAGE    PRINT   SAVE 

2004 V70 AWD with P0420 code V70-XC70 2004

posted by  will rehsper on  Fri Oct 9 05:36 CST 2020
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Tue Jul 3 14:55 CST 2012
[RELATED]

Hiya Marlin, Nice to hear that you resolved your head gasket leak and the V70 is fully back in business!

Sounds like it could be that the cat is inefficient and doesn't want to chase mice anymore, but I wouldn't go replacing it just yet. If it only throws the code at that interval and with that fuel economy (which is excellent for an AWD BTW!), I might try and live with it.

Assess the condition of the O2 sensor(s). Are they original? Worth replacing the front one at least. Perhaps research what repeated washings with coolant will do to one... Then for good measure look things over for an air intake leak (if there is one, it'll be small).

-Will

--
XC60 / Odyssey






USERNAME
Use "claim to be" below if you don't want to log in.
PASSWORD
I don't have an account. Sign me up.
CLAIM TO BE
Use only if you don't want to login (post anonymously).
ENTER CAPTCHA CODE
This is required for posting anonymously.
OPTIONS notify by email
Available only to user accounts.
SUBJECT
MODEL/YEAR
MESSAGE

DICTIONARY
LABEL(S) +
IMAGE URL *
[IMAGE LIBRARY (UPLOAD/SELECT)]

* = Field is optional.

+ = Enter space delimited labels for this post. An example entry: 240 muffler


©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.