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



 VIEW    REPLY TO THIS MESSAGE    PRINT   SAVE 

Intermittent Throttle Response 700

posted by  PorBrickMan on  Mon Jul 16 06:30 CST 2007
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Sun Apr 13 10:31 CST 2014
[RELATED]

About once or twice during an outing of up to 15 miles the throttle will not respond. The car rolls off from a stop light and then stumbles. There is NO throttle response for about 5 to 10 seconds then the power slowly comes back. It might not do this again for another 10 or 20 miles.

Steady state on the highway the car runs great. It also starts and idles just great.

I had this throttle reponse issue happen once before for about a month - ten years ago. I took the throttle position switch apart and pulled the connector off the ECU and cleaned it. The problem did not return 'til now - 120,000 miles and ten years. All the 700 FAQ statements say the fault mode for the throttle position switch is high idle.

I've heard this "dead tip-in" issue can be a symptom of a bad ECU. If the ECU was bad it wouldn't have worked for ten years.

Any suggestions on how to diagnose this dangerous intermittent condition?


--
D '90 745T 229k, '88 744GLE 129k, '96 328i, '73 911T 100k+






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.