oneclean00

I'm needing some help guys I have a 2000 Silverado with a 4l60e that I've rebuilt it due to bad 3/4 clutches but the previous owner had already built the trans before my issues.so I removed trans to inspect found bad 3/4 as stated and bad tc also trans had wrong spacer plate on valve body also found the tc on/off solenoid had a zip tie to hold it on so I also replaced that.

My new issue is that it worked good for a week and now after trans heats up tcc is falling out of lock up but still shifts all gears. I have already removed trans to inspect and everything looks great.

Every single bit of help is appreciated

oneclean00

anybody?

apex2112

Are you getting any trouble codes?
Are you having any misfire problems?
Do you have a way to log what the PCM is telling the trans to do?

oneclean00

No dtcs
No misfires
I may be able to use the tech 2

apex2112

Can you give more detail when is it "falling out of lockup"
Did you have this issue before the rebuild?
Do you have a tune?
Stock or aftermaket converter?

oneclean00

I can pull out of a parking lot and it will shift all four gears converter will lock up and seems like when fluid gets hot th converter falls out of lock

before rebuild the rpms would jump up and down by there self about 500 or so found that 3/4 were gone and replaced converter

tuned with hp tuners

2500 stall huges

apex2112

Was the tune updated for the 2500 rpm converter?
Might just be a tune issue.
Do you have the HP Tuner software?
If you do you could set up a log to see if the PCM is calling for a lockup.
If not have your tuner take a look, maybe some of the TCC tables need adjustment.

oneclean00

The tune is updated for a 2500 stall converter I took it to a local tuner that is well known
the tuner has already looked at the tune he said to me looks great and there is no adjustments need to be made could it be a stop lamp switch

oneclean00

As of today all solenoids plus wiring harness is new still doing same issue

oneclean00

found dtc u1096 and b2647