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



 VIEW    REPLY TO THIS MESSAGE    PRINT   SAVE 

1986 240 Starts and Idles ok engine cuts off under acceleration

posted by  B.C. on  Tue Feb 8 16:35 CST 2005
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Wed Mar 28 22:28 CST 2012
[RELATED]

Do the AMM checks, then check out the vacuum line from the intake manifold to the ICM.

That line is easy to find on the passenger side. It is white nylon (I think) and connects to a diaphragm on the ignition contrul module (ICM).

On its other end, it comes up between #1 and #2 intake manifold rails. There is goes into a rubber 90-degree elbow that fits onto the manifold.

If that hose is off or open, the IGM doesn't see the drop in manifold vaccuum when the throttle is opens, so it doesn't advance the spark timing - and you have to "sneak up" on higher revs. Also seems to have no power.

Also check the accordian air intake hose. They are prone to getting holes on the bottom side - hard to see so you might need to feel under there or use a mirror and flashlight. A new one is around $20, a good DIY job.

Good Luck,

Bob

:>)






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.