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A/T 4speed fails, car wont move until hot.
ok filtes fine, if tank not rusty, i always back flush the old filter to see if the red rust shoots out and if does cry a river....

yes, the ECU loves to have bad caps. (or worse damage form them deep)
and with such, they reboot constantly.
one way of many to see that happen is the diagnostic pins or freeze pins fail.
see why? its like jugger, man in circus. you tell him to add one more bowing pin and he fails.
see why?
yes, lucus melts seals. a known fact, but can be a blessing to some for a time. (imagine all ways a chem can make seals seal,, only one why i know, it melts them)

Inserting the diagnostic jumper must never stall an engine. or cause ECU to get upset, we can drive a week with it inserted, done this vast times.
do not drive with freeze set, ever. or burn up the cat.
1996 they set a DTC just for that act.
after 100 posts im never sure the title is till valid,


I try to explain this here.
my funky 8 tests.

http://www.fixkick.com/ECU/ECU.html#Tests

test 8 is lost comes tests (you dont have a scan tool) so lot comms is code 12s act oddly, same deal really.

test 5 and 6 also apply.


you did say the stall test passes.
but failed to say, it must hot tranny, 10 min waiting...
your tranny is bad, asking why it shifts late, does not compute......
take it to the tranny shop and ask them to test it. pay for testing only, it will fail.
the line pressure will fail cold.
the stall too fails ,car will not move cold so it fails the stall by fact of reasoning..

"What happened, was car would not start or start and die if jumper was left for codes. Strange? "

i was keying of this comment.
what pins, ??? on the 6 pin DLC
and is strange. and a bad sign.


you have this. im sure, which pins are no start. pins. (4 and 2, 4 is ground) 2 is diag mode, flash 12s)
[Image: CAL-car-diag2.gif]

the codes must all come out nice and perfectly
repeats, never dies. never skips half a code, or any funny business
if yes the ECU is sick.
you can start car with diagmode set pin 2.
or put in as its already running, no issues
or drive a week with pin 2 ground , no problems ever.

the driving with TCM removed
allow you to feel the transmission performance with NO INTERFERENCE from the TCM at all.
3 gears work
no slipping felt. (takes skill this. as the TC will slip (slush pumps they are) but a tech knows what slips and what dont and knows the feel of that.
i can not articulate feel well. sorry.
The TC adds to torque, over its internal stall speed. and feels locked up, then you torture the clutch packs, to see if you can make them slip.
this is all in your head during the test, TC< and clutch pack friction disks (they are not supposed to slip, in a single gear)
the clutch packs do slip when you shift. but then lock up.
this is what you think doing the tests.
http://www.fixkick.com
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Messages In This Thread
4sp, car wont move cold. - by fixkick - 08-26-2014, 09:21 AM
car wont move cold. - by fixkick - 08-27-2014, 01:54 AM
RE: A/T 4speed fails, car wont move until hot. - by fixkick - 10-17-2015, 02:00 AM

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