I'm slap happy, bitches!
Join Date: Dec 2007
Deeze49686 is offline
Re: 97 S10 P1870, I think I fixed it
close, but GM developed the EC3 pwm to stop customer complaints of too firm a lockup feel. the early version of the 4l60e the 93 and 94 used a 700 pump modified for use in this application. they also went to pwm for longevity of the 3/4 clutches. in theory it worked, but the dissimilar metals of the iso convertor valve in the valve body, which was steel until 2000 then changed to a type 4 anode hardened aluminum configuration, causes rapid wear in the aluminum casting most noticed exactly opposite the oil feed hole.
DUH, thats not supposed to happen. focking engineers, they redesigned the valve body 6 times since its inception, and it still uses the stamped steel crap ass made in china steel shell. the aftermarket along with trans builders that care have made a killing on these things improving factory flaws.
BTW the 1870 is manufacture specific version of a GENERIC trans component slipping, it could be anything.