MikeGyver

iTrader: (5)

My clutch slips when locked, when I accelerate hard at highway speeds. The truck jerks like it would if the ignition was being turned off and on twice per second or so. I at first thought it was a lean surge, but after thinking about it I decided to try unlocking the converter and accelerating. That made the jerking go away.
Two questions.
1. In VCM controls, TCC solenoid on/off did nothing, TCC PWM on/off locked/unlocked the converter. Is that an OS thing, or is there something wrong?

Even though I am pretty sure this slipping started when I was pulling a car on a trailer and accelerating hard at highway speed with the converter locked, I still want to know:
2. What else can I test before ordering a new converter?

03sierraslt

iTrader: (22)

Scan TCC slip and you will be able to see it happen. For it to work I believe you need to scan.

TCC slip
Engine RPM
Trans input speed

AKlowriderZ71

iTrader: (22)

60e or 80e?

I don't think you'll be able to tell the difference between a slipping converter clutch, or a slipping 3-4 clutch pack. That's how it was with my 60e when the 3-4 clutch pack gave out. Held fine in 3rd, slipped in 4th.

03sierraslt

iTrader: (22)

In a 80e you can, in a 60e you cannot. 60e doesn't have a input speed sensor.

MikeGyver

iTrader: (5)

My 80e only does it when the converter is locked.
I don't understand the log I took. It always says 80%-78% slip. The slip rpm goes from -9 to 8. The input rpm will read 2300-2400, engine rpm is 1700-1800. I must have set the scanner up wrong.(?)

MikeGyver

iTrader: (5)

I hate windows 8.1. I can't find my config or scan.

03sierraslt

iTrader: (22)

Mike, send me your logs and such to the email attached to my profile and I'll look over them this eve. Please attach the config you are using.

MikeGyver

iTrader: (5)

Thanks. If I can find it on my computer!

MikeGyver

iTrader: (5)

Config. How do I upload the scan?

MikeGyver

iTrader: (5)

Is this it?