Re: [MV] M1009 Transmission Problems

From: Joe Shannon (fordpart@bellsouth.net)
Date: Thu Jul 05 2001 - 19:34:55 PDT


A cheap way out on a transmission temp gauge is a Caterpillar torque
converter temp gauge.

"Royce C. Hayes" wrote:

> This is good advice. I have a TH350 tranny behind a 388 stroker SB Chevy
> motor. I replaced the old radiator with one with more cores and a large
> High Efficiency tranny cooler. I tow trailers, among other things, and
> have had no problems with my K5 Blazer.
>
> If you change the fluid every 25,000 miles max, you should be good for at
> least 100,000 miles.
>
> Royce
> =============================
> On Thu, 5 Jul 2001 09:39:27 -0700 "chance wolf" <timberwolf@wheeldog.net>
> writes:
> >
> > ----- Original Message -----
> > From: "Brian" <polaris650_92@yahoo.com>
> > To: "Military Vehicles Mailing List" <mil-veh@mil-veh.org>
> > Sent: Wednesday, July 04, 2001 5:26 PM
> > Subject: [MV] M1009 Transmission Problems
> >
> >
> > > Hi,
> > > I own a blazer, what transmission problems are they
> > > prone to? Are there any warning signs? I have about
> > > 47,000 on mine.
> >
> > Make sure your radiator is in good shape, as they can look
> > externally good,
> > but have cores with diminished cooling capacity or ones that are
> > downright
> > plugged, and you won't notice a thing until your Blazer feels lazy
> > about
> > shifting into third, and/or 'winds up' before going into reverse.
> > The
> > transmission cooling lines run right through your radiator, and, as
> > it turns
> > out, the area of the rad most likely to plug is also coincidentally
> > the area
> > responsible from keeping your transmission fluid at a respectable
> > operating
> > temperature. From bitter personal experience, the THM400 that the
> > 1009/1008
> > vehicles are equipped with gives no warning whatsoever before it
> > broils, and
> > the job to replace the direct-drive clutches and associated
> > over-temp
> > components runs about CAN$800 with labour. If you try shopping for
> > a used
> > THM400 transmission to know that all 400's are not created equal,
> > and
> > finding the correct one in the local Nickel press or junkyard might
> > prove
> > daunting.
> >
> > I've piggybacked external 20,000 GVW transmission oil coolers on
> > each of the
> > CUCV units at work to head off any more emergency pitstops at Mr.
> > Transmission in far-flung lands, and for the investment required,
> > they're
> > nothing but good insurance.
> >
> > Andy Hill
> > MVPA 9211
> > Vancouver, B.C.
>
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