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



 VIEW    REPLY TO THIS MESSAGE    PRINT   SAVE 

B230F Intake Manifold replacement 200

posted by  Mark's 240 on  Mon Sep 8 00:05 CST 2008
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Wed Feb 19 07:44 CST 2014
[RELATED]

Hi,

I have '90 240 with a stubborn rough idle problem. I replaced the injector seals and crank sensor (I had a crank sensor signal missing code) but the trouble remains.

I think the problem is an intake manifold gasket leak. The engine smooths out for a while when I spray carb cleaner under the intake for #3 cylinder. I thought it might be a cracked flame trap to oil separator box hose but I have the oil breather system disconnected and plugged at the metered port and intake snorkel while I do this.

My question is: The Bentley manual says you have to drain the coolant when replacing the intake manifold (or gasket). The FAQ for this site doesn't say to do that. Do I really need to drain the coolant? Just put new coolant in.

Any other advice would be welcome.

Thanks,

Mark
--
' 93 240 (Quinn), AW70, 130K. '90 240 (Amanual), M47II, 97K. '92 240 (Edgar), AW70, 170K, totalled parts car. Love to drive them when my kids let me!






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.