what might cause an intermittent Check Transmission light to come on?
it happens while driving, performance drops significantly and when car stopped
restarted, light is no longer on and everything is normal. Have changed ATF
about once every couple years, level is normal, no burned odor in fluid.
Any recommendations/suggestions/quick check things?
trooper 93 with 85k miles
if you have the bolts around pan, it's just messy but be aware of a couple things
1. search groups.google.com with argument Isuzu Check Transmission
2. you will find that some attributed problem to alternator, other replaced it
3. some have attributed it to bad electrical harness connection (without more
info on where and which one)
maybe someone else will chime in and post their findings
A general problem that can develope with modern computer controlled
automatic transmissions is a bad electrical ground. Because of the
different metals being bolted together (cask iron block, aluminum
transmission, steel bolts, etc. electrolysis at the interface of the
different metals can occur which won't weaken the physical connection, may
not be visible, but can cause poor conductivity. Because the transmission
needs a good electrical ground for the computer to function properly it may
be as simple as creating a new ground. Mileage isn't much of a
consideration in the developement of this condition (unless you drive in a
corrosive environment), but 13 years is old enough for it to happen. Before
spending any money I would run a wire from a good ground point on the
transmission to a good ground point on the engine or chassis - you don't
have anything to lose.
Was the filter very dirty? The transmission fluid should be changed
once a year in my opinion. Cheap way to extend the life of the
transmission. Filter could last longer. Purchasing an after market pan
or having the stock one drilled and tapped so a drain plug can be added
makes things a lot less messy!
no, not that I could tell, looked just the same as the new filter, fluid also
like new and the inside of the pan was very clean
like I initially wrote, I've changed fluids via dipstick pump every couple years
I considered drilling a hole into the pan but wasn't certain I'd be safe with my
home-fashioned bolt, so perhaps will purchase an after market pan - any brands
types you'd recommend? any generic Napa part?
had to use Dexron-III instead of Dexron-II type fluid but the store claimed it
backward compatible with Dexron-II, hope that's true
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