4L60E torque convertor not locking up
05-12-2010, 10:02 PM
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4L60E torque convertor not locking up car is throwing code P1870 (transmission componet slipping) the convertor will not lock up no matter what, and suggestions ? I'm thinking the convertor took a crap. P0300 is enabled in my tune but i would think that if that was the issue the car would throw that code. I am planing on setting the misfire so that will not be in the loop but not 100% for sure.
05-13-2010, 08:19 AM
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P1870 could be a few different causes, the 4L60E is notorious for throwing that code in all applications. One of the causes is a worn valve body that allows fluid past a check ball per a GM technical bulletin.
05-13-2010, 08:39 PM
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i called transgo and the guy said to order there shift kit and the inside wiring harness and that should cure the issue, i data logged the car today and everthing seemed normal
Link to screen shot of logger
http://www.fquick.com/garages/viewga...wimg&id=317896
Link to screen shot of logger
http://www.fquick.com/garages/viewga...wimg&id=317896
Last edited by 1SweetSS; 05-13-2010 at 08:52 PM.
