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



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

Fault codes C70 2005

posted by  KlausC on  Mon Aug 16 17:05 CST 2010
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Fri Oct 24 10:15 CST 2014
[RELATED]

What kills O2 sensors? Running rich. What causes a rich condition? Lots of little things:

Short trips with a cold engine.
Air leaks into the intake manifold from vacuum lines that fall off or crack.
A bad MAF.
Engine coolant temp sensor reading too low.
Short trips with a cold engine.

You need to have your engine tested for vacuum leaks. And then have a monitor plugged into the diagnostic port, checking the O2 sensors, engine temps, etc.

If you only drive a few miles to/from work, do it in 2nd gear. That gets the engine warm, oil and coolant, and allows the valves to spin like the engineers intended.

Klaus
--
Two great Volvos, a 1967 220 and a 1998 V70R






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.