My 2001 Trooper 2WD with barely 79,000 miles has destroyed its transmission
twice...first time at 62,000 miles. The truck is not abused or used for
towing nor taken off-road and sees mostly freeway duty. I've been lucky in
that Isuzu has paid to replace the transmission both times under warranty,
but I'm beginning to think we should sell this truck after we get it back
this time. Is this a common occurrence with Troopers? What could possibly be
making these transmissions fail?
I've not heard of that being a common problem...? I would certainly hope
not...I've got a 2002 with just over 19,000 miles that get used for towing
our 18' travel trailer. But I also went first thing and got an auxiliary
transmission cooler put on it even before the hitch... If you are the
original owner, you should have the 10 year/120k mile warranty for it. That
being the case, I wouldn't be quite as concerned about it...unless it does
it again before the warranty runs out...! What are the symptoms of the
problem you have experienced? Just wondering what to look out for should I
run into the same thing...
Yes, my dealership has been very good about it, specially since the
broken tranny is the replacement they
installed not even 10 months ago...The service manager tells me that they
ship the tranny to Isuzu and they only
reuse the transmission case, all internals are replaced with new parts. He
says he's heard of Trooper transmissions failing but
it's very unusual that it failed so soon after the last replacement. I asked
about adding a transmission cooler and he told me it was not necessary.
As far as warning signs, there were none...all of a sudden there was
loud grinding noise and the transmission idiot light came on. Can you tell
me what brand/model auxiliary cooler did you get? Was it installed by the
dealer? and if not how does it affect the warranty?
That's good, glad to hear they are working well with you. I'm sure an
auxilliary transmission cooler is technically "not necessary", but
everything I've ever read says heat is bad for your
transmission...supposedly even a somewhat minor drop in temperature is a big
help in extending the life of the transmission. The only personal
experience I can relay is from my parent's old 79 Ford van. At around
50,000 it gave some trouble and they found shavings in the pan. The service
center suggested flushing the system and adding a transmission cooler.
Somewhere around 100k miles later when they sold it, the transmission hadn't
ever been touched again. And to the best of my knowledge, they never
changed the fluid. I'm trying to decide what to do about the fluid change
interval...the dealership (or somewhere) suggested 20k, and the manual says
30k under harsh conditions. Well...we tow an 18' travel trailer. We've got
just over 19k on it now, so I guess it's about time to decide. :-)
I'm not sure now what brand transmission cooler I got... I went to the
local Advance auto parts store and they had several different sizes rated
supposedly for how much you're going to tow. I think I just went with the
5,000lb one since that's the towing capacity of the trooper. It was some
off-branded unit. On our old 94, I had my local repair shop install the
cooler (put one on it too when we bought it used), but for the brand new
2002 I let the dealership do it. I figure if they put it on, then it's
their problem if anything goes wrong. Might run it by your dealership first
just to check, but I can't imagine they would have a problem with it or it
affect the warranty. Seems to me they'd be happy to see you put one on!
When it went out, did it leave you sitting or were you able to get somewhere
in "limp mode" in 2nd gear or some such?
Replaced the fluid at 40,000...The manual indicates that it should be
replaced at 30,000 only if driving
in extreme conditions. I've never heard of a transmission in a supposedly
heavy duty truck failing at 60,000
miles even when serviced regularly. Another "feature" of the Trooper is that
it has no dipstick and it's a pain in the ass
to change the fluid, unless you use a power flusher that forces the old
fluid out and the new fluid in, which I've heard is not
good for the seals, etc...My truck is driven mostly on freeways, no
towing..no off-roading...I can't believe these transmissions
are so delicate that unless you change the fluid every 20,000 miles like
clockwork, they'll self-destruct!
But maybe I'm wrong....go figure!
They don't self destruct like clock work. Most are fine. None the less
heat is the #1 killer of transmissions and keeping clean fluid in them
is essential to that. Doesn't matter who made the transmission. I
change all of my vehicles at least once a year or 20K. 15K if I'm
towing. So far I've never had a failure on any vehicle I've owned and
some I'v put 150K+ miles on.
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