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



 VIEW    REPLY TO THIS MESSAGE    PRINT   SAVE 

240 Starts hard when engine is warm

posted by  machine man on  Wed Feb 18 16:50 CST 2009
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Wed Oct 22 15:40 CST 2014
[RELATED]

I have a '78. I had a problem like that once.

I found that a relay about one inch square on the battery side fender that had gotten moisture inside it. It was corroded enough to work intermittently for the longest time.

This relay controls two separate circuits simultaneously. The frequency valve that should buzz when running and the 0-2 sensor path to the ECU.

The valve controls the fuel mixture. It appeared to effect a warm or hot start when it didn't work properly. It also ran a little crappy at idle which may have been for the lack of 0-2 sensor information.

Just a thought and it was rare as things go. Thought it may be worth a try.

Phil






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.