Okay so truck is a 99 k1500 4l60e green connector, to start it off transmission was rebuilt several years ago before I bought the truck, I was getting a jerk in 4th I assumed it was going out well on the way to work the separator gasket blew out so I had it rebuilt and a new converter and also replaced the sun shell and a few other small upgrades, so put it back in and same thing truck shifts good but in lock up it’s got a jerk that feels like a misfire but I’ve scanned with 3 different scan tools no miss fire current or history but still I did a tune up and fuel filter
So I put a corvette servo in it, epc solenoid also adjusted it and didn’t help, pulled the valve body had my transmission man bore out the valve body replaced all the valves inside got it back in yesterday and it still doing the same thing Any ideas would be great I’ve ordered a new lockup solenoid with the wiring harness I’m gonna install today and see if it helps but not sure if I need to try the mod on the other solenoid or not thanks
So I put a corvette servo in it, epc solenoid also adjusted it and didn’t help, pulled the valve body had my transmission man bore out the valve body replaced all the valves inside got it back in yesterday and it still doing the same thing Any ideas would be great I’ve ordered a new lockup solenoid with the wiring harness I’m gonna install today and see if it helps but not sure if I need to try the mod on the other solenoid or not thanks
