[DeTomaso] NPC: Automatic Trans Cooler

michael@michaelshortt.com michaelsavga at gmail.com
Sun Dec 11 20:07:21 EST 2011


If driven with a leak in an Auto Trans equipped vehicle, it will continue
to run until it doesn't, which means you've successfully burned it up.
Rebuild or Replace.
As far as adding ATF, just pour it in, check level on dipstick until full.
I'd let it idle in Park for 5 minutes after filling, check it again,  then
drive it.

They are pretty durable, unless you drove with it dry for 10 miles, you
should be fine.

Michael Shortt
On Dec 11, 2011 7:21 PM, "Mike Thomas" <mbefthomas at comcast.net> wrote:

> I have much more experience, mostly from participating in this forum for
> the
> past 10 years, with manual transmissions rather than automatics.  I have a
> '94 F250 4x4 with a factory installed trans cooler, which I picked up only
> a
> couple of months ago and am going through to find things that need fixing.
> When I was under the front of the truck today installing a set of fog
> lamps,
> I noticed a trans fluid leak in one of the feed lines to the trans cooler,
> which is mounted up with the radiator.  The leak was from one end of a
> short
> piece of rubber tubing clamped to opposing ends of a break in the hard
> line.
>
> I tried replacing the clamps with encapsulated versions, but I must have
> pinched the rubber hose in the process, and thank goodness I only had a
> short drive to the Home Depot and back before I realized I was spraying
> trans fluid all over the front axle.  Clearly, I need to replace the 3"
> piece of rubber tubing, and will have to replace what fluid I loose when I
> pull the hose, but I have two questions:
>
> *       Will this likely dump the entire trans worth of fluid, or only a
> portion?  I expect that's as much a function of how high on the trans the
> hardline is connected, which I can trace.
> *       Will simply refilling the trans as needed from the top take care of
> it, or is there some sort of bleeding process required here as with a
> cooling system?
>
> Thanks
> Mike Thomas
>
>
>
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