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



 VIEW    REPLY TO THIS MESSAGE    PRINT   SAVE 

Okay, now what? 200

posted by  Greg P. on  Sat Jun 26 10:29 CST 2004
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Fri Oct 24 10:34 CST 2014
[RELATED]

Thanks for the good suggestions. I think I'm getting closer to the problem but still not there yet.


"FIRST - check the air filter."

The filter was sopping wet. I put it on the sneaker rack in the clothes dryer for about an hour and it seems ok now.


"Second - be aware of wheel bearing damage."

Hmmm good idea. I'll have to give them a look see.


"Third - the idle problem."

"Something in that system has quit working."

Yes I'm sure of that now, but having trouble figuring out what. This is my big problem right now.



"Try this: Engine idling at whatever speed, use a large pair of pliers to gradually close off one if the hoses to the IAC. The idle speed should drop, and if you close the hose entirely the engine will die."

I assume you mean one of the two lines that go in the top? I tried that and it had no affect.


"Engine off, use an ohmmeter to check for continuity between all the pairs of contacts on the IAC. I thinks your model has three wires, check 3 pairs."

I have approx 24 ohms between the either striped wire and the brown (gnd) wire. 48 ohms between the two striped wires. I can hear the click of the switch ok too.

When I goose the throttle and let go, the idle drops back to normal for a second, then creeps back up to 3000 RPM within a few seconds. Somehow, it seems like the ECU thiks the RPMs are too low and is tying to raise the idle. Any idea how the ECU determines RPM?

Any other more things I can look for? I'm searching for my blue book now. I must have put it somewhere but I can't remember where. This isnt how I wanted to spend my saturday. Oh well.

Thanks




--
Greg P. 1988 240 DL 'Olga' 170,000 miles






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.