4l60e slipping

[lestat2220]

ok so a little background first i have a vt v6 with mace engineering ultra high ratio roller rockers reco engine pacemakers with high flow cat and 2.5 inch cat back rebuilt 3.45 lsd and just had the old 4l60e rebuilt with a stage 2 trango shift kit and performance clutches and bands because of the slipping error code poping up it worked for a week now its back again im looking into the tps being the problem but im wondering because i havent had the new diff gears reprogramed yet could this cause it to get wrong signals and the ecu think its slipping when its not ??? or am i dead on the money with the tps being stuffed??? someone help its driving me insane!!!

[lestat2220]

ok so changed the tps and nothing its still slipping it just seems to be random can any1 help

[njmartin]

is it actually slipping or is your tranny light coming on?
you would be able too feel it slip, the revs will go up alot faster then your actually moving,
and since you've just had it rebuilt unless it was a VERY dodgey workshop, i dare say it's not the gearbox..

[BlackVXGTS]

Was the workshop aware that you were getting the slipping error code (presumably DTC85)? The service CD says:

The PCM monitors the difference between the engine speed and the transmission output speed. In D3 drive range with the TCC engaged, the engine speed should closely match the transmission output speed. In D4 drive range, with the TCC (Torque Converter Clutch) engaged, the Trans Slip Speed should be -20 to +20 RPM. When the PCM detects an excessive transmission slip speed when the TCC should be engaged, then DTC 85 will set.

Was any work done on either the TCC solenoid or the VSS (Vehicle Speed Sensor)?

[ucwepn]

I just got a reco transmission and was told to drive it like nanna for the 1st 1000km's then take it back for a free health check, you might have done some damage it you flogged it too soon.