My 160,000 mile LT1 4l60e is slipping in 3rd slightly. In 4th gear it would not maintain speed. The trans started slipping with no warning while taking off from a light. I was near my home when the slip occurred, so i drove the rest of the way home in 2nd gear. The trans fluid has never been changed since new. My question is.. Could the trans filter be dirty/clogged or should I take the trans and have it rebuilt?
__________________ Black 01 Camaro SS M6. A few mods. Never been in rain. 15,000 miles
"...... Could the trans filter be dirty/clogged or
should I take the trans and have it rebuilt?"""
at 160 k ..."filter be dirty/clogged" ...most likely
at 160 k AND slipping..".should I take the trans and have it rebuilt?.. "
3/4 clutch pack gone... be my guess
would I try filter & fluid ? @ a cost of 38-40.00 per supplies and even @ a small chance of it solving problem, yes I probley try
__________________ Y2K SS (SLP #239)
Black , T-tops, A4, NA, Race weigh 3747#
Completly STOCK heads/bore/stroke/weight
& NOTHING else ------is stock
"NAW-NAW- just a Sunday goto meeting car,my best time is not in the 12's- any more"
I am NOT soliciting as I have retired
>>align info: http://www.jgruggles.com
Got a local guy who is looking to get rid of a fresh rebuild 4l60 out of his LT1 car. Might could work out shipping. I have rode in the car since, the trans is legit. The motor spun bearings about 500 miles after the trans was rebuilt Send me a pm if you want his screen-name.
01 SS Rally Red A4 #4987, 04 Yukon XL Denali, 99 Cadillac STS-SOLD
Typically when you are changing fluid to solve a slip problem it is too late! If a trans is not making third or fourth then it is a 3/4 clutch pack issue. This pack is in the top of the input drum. The 3/4 cluches are well know issue with these transmissions. My suggestion would be to put an upgraded kit in there. A stock 3/4 set has 6 clutches. Raybestos makes whats called a z-pack which alternates steels and cluches on every other side. Also alto makes a kit that has thinner steels and you can fit 9 clutches in there. I typically use the alto kits becuase of price and have seen the z-pack fail alot but also i put a z-pack in my higher hp cars. When building a transmission there is a huge learning curve. These are not like engines where the parts are much more identifiable. I am confident you can rebuild it yourself but take it slow and make sure you buy yourself a book!
A slipping 3-4 clutch will not, in my experience, set off an SES light. Also, I agree that it's time for a rebuild. Common stock 4L60E/700R4 problem particularly with more than stock horsepower, although it can (and does) happen under stock power as well.
ya i think its pretty common in the 4l60e. ive had it do that 2 times and it was burnt clutch packs both times. time for rebuild. i would go with a high performance build. my transmission guy had built many of these for race cars and sayd they just dont handle anything over stock power very well.
how much would it cost for a t56 swap? clutch install, slave cylinder and lines ran as well as new gear box with all the parts sounds like a 3500 dollar job i have a 4l60e and i was looking into maybe doing the same.
__________________ 2000 Ws6 - bone stock
2013 Hyundai Sonata 2.4l -
custom y pipe, and 2.5 in cat back dual magnaflow
w/ 2.5 magnaflow quad tips
custom cold air intake