Fred,
Sounds like she might be slipping. Your test of the converter
tells me the converter is good. The direct drive drum is either low
on pressure or has scrubbed the clutches. Take the pan off and check
the fluid and pan for clutch material.
Walt
http://www.personal.kent.edu/~wbainey/CHEVELLE.htm
----- Original Message -----
From: Fred Dowaliby <[EMAIL PROTECTED]>
Date: Sunday, November 21, 2004 4:35 pm
Subject: [Chevelle-list] Tranny slipping?
> Folks,
>
> I have a 454/TH400 engine trans combo and would really appreciate
> your
> help diagnosing what seems like slippage. When I'm going down the
> road,
> at say 50, in drive, and step on it the revs go up but I no longer
> feel
> the "g" force like I used to . The revs go up without much if any
> increase in mph. If I slowly add gas then the mph increase. I can
> very
> easily cause it to "slip"; it happens even with part throttle.
>
> Thinking it might be the torque converter, I tried it from a stop
> with
> my foot on the brake. I could only get the revs up to 2000-2200,
> which
> is about the stall speed of the converter. So, I'm now guessing
> the
> torque converter is ok and the problem must be the tranny, or it
> would
> have happened from a stop in 1st gear. Could the tranny be
> slipping in
> drive but not 1st?
>
> Any thoughts on other tests I might perform to differentiate
> whether
> the problem is the tranny or converter? I guess the converter and
> tranny can be tested out of the car?
>
> Thanks Much,
>
> Fred
>
>
>
