blistovmhz
NAXJA Forum User
- Location
- Vancouver, BC
Yea I know. Not XJ related, but you guys are the only knowledgeable guys on the Intarnet. If it helps, I also have a bunch of 5.3 swapped XJ's with 4l60e's so this is SORT OF applicable.
Had a 4l60e rebuilt by a local shop. I NEVER pay someone to do anything, because it always ends up being shit. This was no exception, but I just didn't have time to do it myself, and the guy said he had a 4l65e for me, and I couldn't find one. Long short, he didn't have a 65e, gave me a 60e, tried to convince me it was a 65... 1-2 shifts are crazy harsh, but that's probably just a simple adjustment in the VB.
The real issue is 3rd and 4th feeling like they're slipping or changing gears constantly when in 4L. Doesn't happen in high gear at all. At relatively low speed and low throttle the trans feels like it's just popping in and out of gear. I don't see a gear change being commanded by the ECU but it could be happening too fast for my machine to update the screen. VSS is reading correctly so the 4L switch is definitely working and the ECU knows we're in low. Everything worked prior to swapping the trans. Manual 3rd or 4th selection does the same thing.
For some reason, it also seems to skip 3rd entirely, when in the 4th position. 1>2>4 every time. Again, didn't do this before. Nothing has been changed on the ECU.
Any brilliant idea's? The shop owner is pretty confident it's not a transmission issue, but rather a control issue. He's got a proper scanner, so he should be able to prove that, but I don't trust him at all at this point. It only went back to him because I told him i'm giving him one more chance to get this right before I demand he take the trans back, and give me all my performance parts back.
I had him install a Sonnax Smart Reaction shell, corvette servo, and Transgo HD2 kit. Told him to use relatively conservative valving. I just don't have enough experience with auto's to know if anything in the trans could be the problem. It's entirely possible the issue also exists in high range, but you just don't feel it or it's not as prevalent.
Had a 4l60e rebuilt by a local shop. I NEVER pay someone to do anything, because it always ends up being shit. This was no exception, but I just didn't have time to do it myself, and the guy said he had a 4l65e for me, and I couldn't find one. Long short, he didn't have a 65e, gave me a 60e, tried to convince me it was a 65... 1-2 shifts are crazy harsh, but that's probably just a simple adjustment in the VB.
The real issue is 3rd and 4th feeling like they're slipping or changing gears constantly when in 4L. Doesn't happen in high gear at all. At relatively low speed and low throttle the trans feels like it's just popping in and out of gear. I don't see a gear change being commanded by the ECU but it could be happening too fast for my machine to update the screen. VSS is reading correctly so the 4L switch is definitely working and the ECU knows we're in low. Everything worked prior to swapping the trans. Manual 3rd or 4th selection does the same thing.
For some reason, it also seems to skip 3rd entirely, when in the 4th position. 1>2>4 every time. Again, didn't do this before. Nothing has been changed on the ECU.
Any brilliant idea's? The shop owner is pretty confident it's not a transmission issue, but rather a control issue. He's got a proper scanner, so he should be able to prove that, but I don't trust him at all at this point. It only went back to him because I told him i'm giving him one more chance to get this right before I demand he take the trans back, and give me all my performance parts back.
I had him install a Sonnax Smart Reaction shell, corvette servo, and Transgo HD2 kit. Told him to use relatively conservative valving. I just don't have enough experience with auto's to know if anything in the trans could be the problem. It's entirely possible the issue also exists in high range, but you just don't feel it or it's not as prevalent.