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 

miss @ 3/4 throttle.... 700 1989

posted by  Ryan M. on  Fri Aug 23 11:31 CST 2002
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Mon Mar 28 02:31 CST 2011
[RELATED]

Ok these circumstances might be a little hard to replicate but here goes...

Running stock boost levels (when I want to save gas), I generally run around town at 3/4 throttle. It boosts to roughly 7 psi, shifts at ~4000 rpm etc.

So here's my problem, when the engine is warmed up (its worse when cold) I floor it to 4000 rpm then let off to 3/4 throttle to allow the tranny to shift (tranny hates shifting at full boost for some reason... no big deal) and when I let off there's a distinct miss like "bam...bam...bam" and then the tranny decides to shift.

Any ideas what might cause this kind of miss?

New plugs, wires, distributor. 1994 B230FT converted to LH 2.2 "etc."

I have a leak between the manifold and the turbo, and I think on #4 cylinder exhaust manifold gasket. Since these are pre O2 sensor, is it possible these leaks are causing or contributing to this issue?

Thanks

Ryan






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.