Re: IML: Transmission woes on '90 Imp

[David Whitney <david.whitney@xxxxxxxxxxxx>]

Tim --

Try http://groups.yahoo.com/group/Chrysler-MoparTransaxle/ and
http://autos.groups.yahoo.com/group/mopar33lv6/ and
http://autos.groups.yahoo.com/group/fwdmoparmuscle/

The topic of swapping trannies for the 3.3 and 3.8 comes up occasionally.
If anybody knows, these folks do.

I don't know of anyone who has successfully swapped the A604 for a stick,
but there are people who use later year transmissions that do not have the
same design flaws as the earlier years.

Not all A604s were junk, it's just that the failure rate was so much higher
than the gold standard 727.  My '91 has what I believe is the original
transmission -- don't know for sure because of its checkered past -- with
177k miles.  I just took it on a 24-hour road trip from San Francsico to
San Diego and back this weekend, and it performs like a champ.  Oh, and one
15-gallon tank of gas from Hollywood to San Francisco.  Eat your hearts
out, big block owners! :))

-- David


                                                                                                                                              
                      Tim Clevenger                                                                                                           
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                      mailing-list-owner@imper        Subject:  Re: IML: Transmission woes on '90 Imp                                         
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                      01/26/2005 06:00 PM                                                                                                     
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Hi Jason,

Thanks for the info.  I knew about the 7176.  I wrote it down, gave
it to the shop, and made them promise that that's what they would
use.  I wonder if there's a way to dip a little out of the filler and
see what exactly is in there.  Can a dealership tell what kind of
fluid is in there if I give them a sample?

Is there a reputable place where I can order a rebuilt A604 that has
all of the things done to it that the TSB's tell me will make this a
reliable transmission?  I'm willing to put one transmission in--
when that dies, the car goes to the Pick 'n' Pull.

Better yet, has anybody successfully swapped a manual transmission
in there?  I've read in other forums that the issue is the crankshaft
position sensor.  If somebody has made this work, I'll have it up
on jacks and wrenching this weekend.


Thanks.

Tim

-------
From: Jason Wulf <jrwulf@xxxxxxxxx>
Subject: Re: IML: Transmission woes on '90 Imp
Reply-To: mailing-list@xxxxxxxxxxxxxxxx
Tim,

I also own a 90 Imperial with transmission woes, and I'll simply relay
to you everything I've heard.  I don't know what's fact or fiction,
because it all seems to have merit, and different shops that I talk to
have different theories as to exactly what's causing it, but they all
lead directly to a rebuild.

I know for a fact (i had a shop plug his tool into the diag port) that
my clutches are way out of spec tolerance.  On his tool, normal
tolerance was "70-90", and the readout of my clutches was in the
neighborhood of 160.  I've also heard that some of the solenoids could
be plugged, and it's possible that someone sometime put Dexron in it.

--This brings me to a brief aside, but I just want to make sure that
you did put Mopar 7176 (ATF+3) in when you flushed it, right?  I've
read horror stories about people that were told Dexron III was good
enough, and 10,000 miles after their rebuild the tranny went again.

I've also been told that my seals are probably shot, causing incorrect
pressures.  I just did a fluid flush/fill myself, and now when the car
is bone cold the transmission shifts into gear great in the morning.
After it's warmed up, if i let it sit for about 20 minutes it'll take
sometimes 15 seconds to get into gear.  This leads me to believe that
it's the seals, but I have no real technical knowledge about this
transmission, and after looking at exploded diagrams of the
million-billion parts inside, I think I might just best leave it to
the 'pros.' =)


Hope this helps,
-Jason Wulf



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