Torque Converter Shutter Problems/Grinding
Thread Starter
Teching In
Joined: Jul 2002
Posts: 13
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From: Los Angeles
Torque Converter Shutter Problems/Grinding Hi,
I’m having some transmission problems with my 1999 camaro which has the 4l60e transmission on a 3.8L. I wanted to put in a new torque converter in my car. It is a Precision Industries Vigilante lock-up 3200 stall converter. The first time I had it installed it was working fine for maybe like 20-30 miles. Then, all of a sudden when it tries to lock-up (3rd to 4th gear) at around 1800-2000 rpms I started hearing a grinding noise. It’s kind of loud too. So, I took it back to the shop and they switched it back with my stock torque converter and then everything was ok. When I sent other Vigilante torque converter back to Precision industries for repair, they told me that there was nothing wrong with it. No matter how many times they kept looking for something they did not find anything wrong. So they just cleaned it up a little bit and sent it back. So while I was having that reinstalled I also drained my transmission and changed the transmission filter so that everything would be fresh. But the same thing is still happening. It still grinds when the converter is trying to lock-up.
The new torque converter was specifically designed for my car so I’m not sure why there would be anything wrong with it especially when the company says there is nothing wrong. any ideas?
Moneyshotz
I’m having some transmission problems with my 1999 camaro which has the 4l60e transmission on a 3.8L. I wanted to put in a new torque converter in my car. It is a Precision Industries Vigilante lock-up 3200 stall converter. The first time I had it installed it was working fine for maybe like 20-30 miles. Then, all of a sudden when it tries to lock-up (3rd to 4th gear) at around 1800-2000 rpms I started hearing a grinding noise. It’s kind of loud too. So, I took it back to the shop and they switched it back with my stock torque converter and then everything was ok. When I sent other Vigilante torque converter back to Precision industries for repair, they told me that there was nothing wrong with it. No matter how many times they kept looking for something they did not find anything wrong. So they just cleaned it up a little bit and sent it back. So while I was having that reinstalled I also drained my transmission and changed the transmission filter so that everything would be fresh. But the same thing is still happening. It still grinds when the converter is trying to lock-up.
The new torque converter was specifically designed for my car so I’m not sure why there would be anything wrong with it especially when the company says there is nothing wrong. any ideas?
Moneyshotz
Re: Torque Converter Shutter Problems/Grinding sounds like you need to increase your line pressure. A 9" vig takes more pressure to hold the clutch than the 12" stock unit.
Have you done other mods to the car? do you have a HPP3 (not sure it is made for a v6)?
Have you done other mods to the car? do you have a HPP3 (not sure it is made for a v6)?
Thread Starter
Teching In
Joined: Jul 2002
Posts: 13
Likes: 0
From: Los Angeles
Re: Torque Converter Shutter Problems/Grinding My stock unit is 9". They don't make a hyptertech for my car. Here are my mods..
Hypertech 160 Degree Thermostat
Manual Fan Switch
Zexel Torsen LSD
3.42 GM Gears
Mandrel Bent 2.5" I-Pipe
Flowmaster 80 Series
2.5" Cutout
Whisper Lid
SLP Cold Air Induction
K&N Filter
Precision Industries 3200 Torque Converter
TransGo Shift Kit Stage 3
Corvette Servo
B&M Transmission Cooler
Hypertech 160 Degree Thermostat
Manual Fan Switch
Zexel Torsen LSD
3.42 GM Gears
Mandrel Bent 2.5" I-Pipe
Flowmaster 80 Series
2.5" Cutout
Whisper Lid
SLP Cold Air Induction
K&N Filter
Precision Industries 3200 Torque Converter
TransGo Shift Kit Stage 3
Corvette Servo
B&M Transmission Cooler
Thread Starter
Teching In
Joined: Jul 2002
Posts: 13
Likes: 0
From: Los Angeles
Re: Torque Converter Shutter Problems/Grinding I was reading from a previous post that someone recommend to flush the tranny fluid, change the filter, and add some additive.
When I had the converter put back in the 2nd time, the mechanic drained my tranny and put in a new filter. So, I guess there is new-fresh fluid in my tranny. What kind of additive should I try?
I'm hoping that will fix or at least help the shutter/grinding.
When I had the converter put back in the 2nd time, the mechanic drained my tranny and put in a new filter. So, I guess there is new-fresh fluid in my tranny. What kind of additive should I try?
I'm hoping that will fix or at least help the shutter/grinding.
Thread Starter
Teching In
Joined: Jul 2002
Posts: 13
Likes: 0
From: Los Angeles
Re: Torque Converter Shutter Problems/Grinding I just bought the Lubegard Automatic Transmission Protectant. I'm going try it later today.
What does everyone think about this?
http://www.lubegard.com/automotive/t...dder_fixx.html
What does everyone think about this?
http://www.lubegard.com/automotive/t...dder_fixx.html
