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This is a discussion on 460le within the Automatic Transmission forums, part of the Drivetrain category; I have an automatic that slips when cold and hot, are there any adjustments I can do, such as band ...
08-12-2006, 03:13 PM #1TimRandichGuest
I have an automatic that slips when cold and hot, are there any adjustments I can do, such as band adjustment, or any additives that might help.
This is my first post, please don't ignore me...
08-13-2006, 03:04 PM #2
4l60e that slips
if the transmission seems to work ok other than that and the fuild is not burt excessivly , I would try replacing the (pcs)preasure contol solinoid first,
08-13-2006, 03:10 PM #3
- Join Date
- Jul 2005
- Jacksonville, FL
Is your SES light on? If it's slipping should be throwing a code.
08-13-2006, 03:27 PM #4
Actually It might not set a code in lower gears since the pcm allows fo converter slip and the 4l60e only looks at engine rpm and output speed, Also it will not set a code for pcs either unless its electrically faulty, The pcm has no feedback from the pcs for a mechanical fault , Now it theres excessive slipage in 4th with lockup converter engaged you may get code 1870 (componet slipping).I would suggest changing fluild and turn the preasure up a little as i mentioned earlier and then start looking for a transmission,
08-14-2006, 04:20 AM #5TimRandichGuest
Thanks for the replies, I have recently changed the fluid and noticed black residue on the bottom of the pan., Looked like rubber and wiped off easily. The fluid is good. No Codes and I do not have an SES light. The Shift from 1st to 2nd is now harsher than it was at light throttle.
Can I adjust the bands or add an additive to get it back to normal?
08-15-2006, 08:56 AM #6
I would change the pcs as i suggested earlier , additives make little or no diference
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