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



 VIEW    REPLY TO THIS MESSAGE    PRINT   SAVE 

Really Rough Idle 700 1987

posted by  someone claiming to be fixit 2003 on  Fri Nov 4 03:16 CST 2005 [RELATED]

Sounds like you may have a couple of things going wrong but if the #1 cylinder isn't fireing you may as well start there. Could be the spark plug, plug wire or injector. You can swap/replace parts to see if the problem goes away or moves to another cylinder. The '87's are the last year with the crumbling engine wire harness insulation problem. You may very well have a problem with the injector wiring. The IAC can be tested by connecting 12 volts to the middle plug pin and grounding the outer pins one at a time. The valve should click open and closed very quickly as each outer pin is grounded. All of your various problems could be caused by flakey wireing insulation. It has driven alot of 740 owners battey. See: www.bartonharness.com/volvoharnesses.html






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.