blazin_blazer
1/2 ton status
i have a 1996 4 door, 4wd tahoe that has a vortec 5.7l & 4l60e, it started slipping when shifted into 3rd gear, the motor stumbles and sounds like its running out of gas, a new fuel filter is going on tomorrow, but i don't believe it is my problem, because you could pull it down into 2nd, get speed up then shift to overdrive and it would jump 3rd and go on until you have to come to a stop. then you would have to do the same thing again.
it only does this once it reaches full operating temp, the tranny has less than 50,000 miles on a rebuild, so the bands and clutches shouldn't be gone. the fluid looks and smells normal. the truck is street driven only and not driven hard or been used for towing.
But now every gear is gone after 4-5 miles.[truck seems like its reaching operating temp faster than usual] after it stumbles, i can feel trans barely start pulling once you let off of throttle and it falls to idle and just off idle and motor clears up, to much gas and its like neutral, except it doesn't rev it stumbles and bogs and slips the tranny in any gear.
it threw a code, so i had advance auto read the obd2. it reported "manufactur's transmission control" IIRC it was code 8412. they said they had no idea, they have never seen that code and it could be anything from the computer to any trans sensor. so i drove it home at 10 mph on hills about 2mph @ 3000 rpm. seem like converter isn't pumping pressure, but doesn't explain the engine bogging.
has anyone encountered this problem or seen this code? if so what was the fix? please help as this is my only street legal truck at the moment, so its my dd and i'm stranded!
it only does this once it reaches full operating temp, the tranny has less than 50,000 miles on a rebuild, so the bands and clutches shouldn't be gone. the fluid looks and smells normal. the truck is street driven only and not driven hard or been used for towing.
But now every gear is gone after 4-5 miles.[truck seems like its reaching operating temp faster than usual] after it stumbles, i can feel trans barely start pulling once you let off of throttle and it falls to idle and just off idle and motor clears up, to much gas and its like neutral, except it doesn't rev it stumbles and bogs and slips the tranny in any gear.
it threw a code, so i had advance auto read the obd2. it reported "manufactur's transmission control" IIRC it was code 8412. they said they had no idea, they have never seen that code and it could be anything from the computer to any trans sensor. so i drove it home at 10 mph on hills about 2mph @ 3000 rpm. seem like converter isn't pumping pressure, but doesn't explain the engine bogging.
has anyone encountered this problem or seen this code? if so what was the fix? please help as this is my only street legal truck at the moment, so its my dd and i'm stranded!
