Torque converter problems?

[sapearso at collins.rockwell.com]

This sounds exactly like the problem my 88 Toronado was having for quite
some time. Seemed like the
torque converter would blow up at any minute. Is your problem worse when
climbing hills?
I ended up tracing it down to an open plug wire, which had only been on
there for about 2 months. It's the
little things that get you sometimes. You can't always trust new parts
(even more so if it's a diesel).

Scott

------------------------------

Date: Wed, 14 Mar 2001 23:33:34 -0600
From: Gabe <gellett at earthlink.net>
Subject: Torque converter problems?

Got a father-in-law with '92 4x2 Chev full size pickup with either a 4L60
or
700R4 tranny & a 350...

Recently it has developed a pretty nasty vibration/shudder it seems when
the
torque converter locks up under light throttle & at low RPMs...  As a side
note,
my work van (92 Astro) does the same thing & has for the last couple years
(I
only put about 4-5K miles on it a year).

Is this a sign that the torque converter is preparing to expire and send
shrapnel thru the tranny or just that the ECM is getting a bad signal from
somewhere or is in need of reprogramming for better lock up points?  Don't
really have much experience with lock up converters & OD tranny's - have
always
had TH400s or TH350s.

We were contemplating disconnecting the wires for the lock up converter for
the
time being to see if that would cure the problem for now.

TIA for any input.  BTW, the truck has not had any programming work done to
it.

Gabe

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