Alright. What the hell is going on now????
11-18-2012, 03:41 PM
#1
Alright. What the hell is going on now???? I'll post my combo, and then the symptoms.
1994 Camaro 383 Stroker, GM847 cam, Longtubes, full exhaust (no cats) 4l60E with a transgo Shift Kit, PTC 3600 10" converter (lockup) stock rear auto gears, poly mounts (engine, trans, torque arm) dyno tuned by late Model Throttle in Waukesha WI. Also has a B&M Trans Cooler ran in parallel with the stock in radiator cooler. Radiator is about 1 year old. After the tune the shift points seem to have been changed a bit. It honestly felt better after the tune than before...... it HAD a PCM forless tune on it prior.
The motor now has about 3500 miles on it since the rebuild, and the trans has about 3000 since rebuild.
This is what happened: When I first got the car back from getting the motor put in, it was REALLY hard to get going. Fluid level was full. I got it home, and all of a sudden I lost 3rd and 4th. Trans got real hot, and spat fluid out of the overflow/vent tube. i had it pulled out, and rebuilt. All of the seals, soft parts, band, Pump, ect were replaced with new parts. New clutches again. The converter and lines were SUPPOSEDLY flushed out by the shop that put the trans back in (rebuilt elsewhere) and everything was fine for about 3K miles. I finally got my tune done about 300 miles ago, and thats when the shift points were changed from stock. Ive raced it mabey twice in that time period. The first time I raced it, the car seemed to rev/hesitate for a second, and then the converter hit and I took off.
I drove it around quite a bit in town for a few weeks. I parked it for about two, and decided to take it out for a drive last night and this is what happened.
It seemed to be driving normal until it was good and warm. I drove for another 15 miles or so, and all of a sudden I got a shudder when it shifted into second gear. On the way home I got to about 60 MPH, and I started getting smoke inside the passengers compartment, seeping in around the trans tunnel. it seemed like the Torque converter was not locking like it should at that point, and my rpms were higher than normal at 60MPH. I let off immediately, and got off on an exit that was near. I now notice a shudder from first to second gear, and if I'm up to highway speeds and i manually unlock the converter (pressing the gas pedal slightly, or pressing the brake pedal while keeping a steady speed). Its definitely a shudder when the torque converter unlocks, not when it shifts. when the converter locks in OD, it also feels pretty weak.... or at the very least an extended engagement time. I can shift the car manually from first through overdrive without issue, and it doesn't seem to slip at all. Fluid level is full, but it smells a bit burnt, and is NOT bright red like it should be. It has a slight brownish tint to it.
Could this be a failing torque converter? My best guess is that the converter isn't locking completely at speed, allowing it to slip and heat up the fluid.
I'm sorry for the novel here, but I'm at my wits end.
1994 Camaro 383 Stroker, GM847 cam, Longtubes, full exhaust (no cats) 4l60E with a transgo Shift Kit, PTC 3600 10" converter (lockup) stock rear auto gears, poly mounts (engine, trans, torque arm) dyno tuned by late Model Throttle in Waukesha WI. Also has a B&M Trans Cooler ran in parallel with the stock in radiator cooler. Radiator is about 1 year old. After the tune the shift points seem to have been changed a bit. It honestly felt better after the tune than before...... it HAD a PCM forless tune on it prior.
The motor now has about 3500 miles on it since the rebuild, and the trans has about 3000 since rebuild.
This is what happened: When I first got the car back from getting the motor put in, it was REALLY hard to get going. Fluid level was full. I got it home, and all of a sudden I lost 3rd and 4th. Trans got real hot, and spat fluid out of the overflow/vent tube. i had it pulled out, and rebuilt. All of the seals, soft parts, band, Pump, ect were replaced with new parts. New clutches again. The converter and lines were SUPPOSEDLY flushed out by the shop that put the trans back in (rebuilt elsewhere) and everything was fine for about 3K miles. I finally got my tune done about 300 miles ago, and thats when the shift points were changed from stock. Ive raced it mabey twice in that time period. The first time I raced it, the car seemed to rev/hesitate for a second, and then the converter hit and I took off.
I drove it around quite a bit in town for a few weeks. I parked it for about two, and decided to take it out for a drive last night and this is what happened.
It seemed to be driving normal until it was good and warm. I drove for another 15 miles or so, and all of a sudden I got a shudder when it shifted into second gear. On the way home I got to about 60 MPH, and I started getting smoke inside the passengers compartment, seeping in around the trans tunnel. it seemed like the Torque converter was not locking like it should at that point, and my rpms were higher than normal at 60MPH. I let off immediately, and got off on an exit that was near. I now notice a shudder from first to second gear, and if I'm up to highway speeds and i manually unlock the converter (pressing the gas pedal slightly, or pressing the brake pedal while keeping a steady speed). Its definitely a shudder when the torque converter unlocks, not when it shifts. when the converter locks in OD, it also feels pretty weak.... or at the very least an extended engagement time. I can shift the car manually from first through overdrive without issue, and it doesn't seem to slip at all. Fluid level is full, but it smells a bit burnt, and is NOT bright red like it should be. It has a slight brownish tint to it.
Could this be a failing torque converter? My best guess is that the converter isn't locking completely at speed, allowing it to slip and heat up the fluid.
I'm sorry for the novel here, but I'm at my wits end.
