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 

IAC Valve: Does it operate only at Fully-Open & Fully-Closed modes, or are there different positions ? 700 1985

posted by  ndesouza on  Wed Sep 22 07:29 CST 2004
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Sun Mar 18 15:14 CST 2012
[RELATED]

Thanks for that really detailed post Art. That's exactly the info I was looking for from Vroom. Yes - I was trying to test the transistors using a Simpson meter too - and was seeing really low resistances on most of them - which was really odd.

One question - when replacing a transistor especially in this instance, where they are used as a pair, is there a need to use a matched pair ?

By the way - I did the LED test and both glowed all the time. Also - when I did a test with the IAC where I could actually see the IAC window open/close (I'd blocked off both IAC hoses prior to that - you can see more info via my post in the link below) - the IAC window was adjusting it's aperture okay - so it was not open all the way - indicating (I think) that the transistors are not blown.

http://www.brickboard.com/RWD/index.htm?id=855909

Will let you know if I find any changes after putting the fully-cleaned IAC back in.

Thanks,

Noel






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.