4l60e problems... yet again

[jderry]

the tuner can kill the trans quickly also.
No idea what level mine is LOL. they stamped it as a level 1 or 2 as a joke

I would not think Steve's tune to be killing my transmissions off. I was just not a fan of the lockup and shift at the same time.

[nascarnate326]

What causes these auto trans problems?

Is it the stall thats the issue or the actual trans?

Too much HP?

[jderry]

What causes these auto trans problems?

Is it the stall thats the issue or the actual trans?

Too much HP?

I don't think it is the converter, it seems to stall up and brake stall fine. Still locks up at 45 mph like it did. The transmission feels like it is in neutral when it goes to shift into 3rd/4th. I used my scan tool to monitor the solenoids, it does try to shift into 3rd and 4th, well at least the command is made to them.

[FASHOOTER]

Try overfilling the trans a little bit, maybe a 1/4 inch over full on dipstick. Most of my dead 60s did pretty much what yours is doing before they gave up 3rd all together. I have found either over fill it a little, or they love a deep truck pan and filter. But I haven't got more then a couple thousand miles out of any 4l60 I ever had once I started making a little power

[Nocooler]

One trip to RPM and you'll know they mean business.

There were all kinds of vettes, fbody's, tbss's in the lot with out of state plates on them. Call and talk to one of the guys they know their shit. They sponsor one of the lanes at Munice dragway and have a handfull of test vehicles for R&D.

I wouldn't hesitate doing business with them again.

[jderry]

I had a deep pan/filter on this transmission. I will try to overfill it some tomorrow after work. I plan on shoving a somewhat stock trans I picked up yesterday in it for the time being. I will try to save up some cash to have a RPM by winter...

[jderry]

is it possible that this is electrical? If I start the car in 1 and shift it manually into 2 then 3 then 4 it acts fine and shifts pretty firmly. The first time you put in in over-drive it acts up. What is the difference? Is a solenoid commanded differently?

[FASHOOTER]

What year is your trans?

[jderry]

What year is your trans?

1995

[FASHOOTER]

Did u change any solinoids or harness when u put that 95 trans in your 96?

[jderry]

Did u change any solinoids or harness when u put that 95 trans in your 96?

It has 1995 engine, pcm, wiring harness out of a 1995 Z28. The builder put all newer solenoids in it, probably cheapest he could find. He also put a new harness in it, and added an adjustable pressure solenoid with some funky looking wire nuts.

[dawdaw]

It has 1995 engine, pcm, wiring harness out of a 1995 Z28. The builder put all never solenoids in it, probably cheapest he could find. He also put a new harness in it, and added an adjustable pressure solenoid with some funky looking wire nuts.

Have Frank Cahall at CPT build your trans and be done with it.... Dude knows his shit. Don't rule out the tuning, people make mistakes... But if it was working fine for a while before and all of a sudden your having issues i would suspect something mechanicaly wrong with it.

[jderry]

Have Frank Cahall at CPT build your trans and be done with it.... Dude knows his shit. Don't rule out the tuning, people make mistakes... But if it was working fine for a while before and all of a sudden your having issues i would suspect something mechanicaly wrong with it.

I have put 500 miles on it, shifted great, after those storms went to put gas in it and it felt like garbage. It is just odd that if you start in 1 and manually go through the gears it works fine. Put it in OD and it always messes up.

[jderry]

Pulled my pan after work today, had some residue in the pan, seemed somewhat normal. My 2-3 solenoid is extremely loose in the valve body. Is this normal? It has a lot more play to it then the solenoid next to it.

[SOPES]

I havent built a trans in years, I cant remember off the top of my head but when our trans tech gets to work tomm morning I will ask him. He knows his 4l60's