It's official my 4L60-E is toast
#1
12 Second Club
Thread Starter
iTrader: (1)
Join Date: Oct 2004
Location: Raleigh, NC
Posts: 280
Likes: 0
Received 0 Likes
on
0 Posts
It's official my 4L60-E is toast
After having my car tuned it still runs like **** and still hits the rev limiter 1-2 and 2-3, slips like crazy. My tuner got a PO751 code also. Any advice on what to do now? As much as a would like to just throw a race build trans in there , it's not possible for me financial right now. Any reccomendations as to what I should do to strenthen the stock tranny when it's rebuilt? Also, what an approximate cost for a good rebuild with upgrades?
Trending Topics
#10
12 Second Club
Thread Starter
iTrader: (1)
Join Date: Oct 2004
Location: Raleigh, NC
Posts: 280
Likes: 0
Received 0 Likes
on
0 Posts
Well I don't know if it's toasted, just screwed up and I know nothing about transmissions. Here's what it does. Sometimes during normal driving it needs 5000 rpms in 1st gear to get moving, sometimes it's ok. It bangs the rev limiter on the 1-2 and 2-3 shifts everytime. At the higher rpms it slips also. PO751 is what my tuner said has something to do with slippage and silenoid failure. What's a silenoid? How many would I need, cost? I'm really hoping it's going to be a cheap fix, but that never happens with my luck. What should I upgrade while it's in the shop? BTW, I just checked the fluid, can't tell if it's burnt or not. Looks sorta pinkish grey to me smells a little burnt but not alot??? I've never changed tranny fluid myself and the only time i've added it was last week after the install, so clueless on that part.
#11
12 Second Club
iTrader: (5)
Dude it's because of your stall. It's a tuning issue, your trans is fine. The reason why it takes you so much rpms to get moving is because the trans threw the code and locked you out of 1st and 3rd gear (limp mode). If you turn the car off for a few minutes, you'll get your gears back or you can manually move the shifter to 1st then back up to 3rd and you'll get them back that way as well. I've been through this, it's a tuning issue.
#12
12 Second Club
Thread Starter
iTrader: (1)
Join Date: Oct 2004
Location: Raleigh, NC
Posts: 280
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by Roarin_8
Dude it's because of your stall. It's a tuning issue, your trans is fine. The reason why it takes you so much rpms to get moving is because the trans threw the code and locked you out of 1st and 3rd gear (limp mode). If you turn the car off for a few minutes, you'll get your gears back or you can manually move the shifter to 1st then back up to 3rd and you'll get them back that way as well. I've been through this, it's a tuning issue.
#14
12 Second Club
Thread Starter
iTrader: (1)
Join Date: Oct 2004
Location: Raleigh, NC
Posts: 280
Likes: 0
Received 0 Likes
on
0 Posts
Trans tuned, he adjusted shift rpms, turned the PO751 code off, and all the other stuff he does when someone with an LS1 car with a stall comes in. He's a very good tuner and knows what he's doing.
#16
9 Second Club/Nitrous Mod
iTrader: (1)
Like Roarin said. Have your tuner scan your car again and see what pops up. The vehicle speed sensor can make the tranny act up also. Though, my tranny & converter is rebuilt, I've had (or still have maybe?) the same problem: https://ls1tech.com/forums/automatic-transmission/490146-weird-tranny-problem.html
If your car isn't throwing any tranny related codes and tuned right, then it might be time for a rebuilt.
If your car isn't throwing any tranny related codes and tuned right, then it might be time for a rebuilt.
#20
TECH Fanatic
iTrader: (18)
Man I tell ya what I just recently had my Yank PT4000 put in and damn cruising along everythings going great. I get on the highway for about 20 minutes and the converter wont lock. I slow down and get off the highway and the car wont move till like 4K and its standing at 4500 rpm goign down the highway... I thought to myself how the hell did I lose gears within an hour of getting the converter put in. Well I parked it at a parts store to get some trans fluid incase it was low. It was fine. Started it up took off and magically 1st gear came back + lockup then it did it an hour later. I guess im in limp mode and need to get everything strait!