c32 Torque converter probs ?
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Joined: Aug 2012
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2001 C32 AMG
c32 Torque converter probs ?
I think i have a problem and wonder if anyone else has had the same. I have the usual 1500rpm jerk that i have got used to, however recently when cold the GB/torque converter keeps jumping on and off at constant low speed untill warm, feels as if its changing from 5 to 4 and back but i dont think its the gb changing. I think its the converter engaging and disengaging. more concerning that the usual jerk.
I changed the gb fluid 1 month ago and diff oil. car has 28000 miles, any ideas, would a gb ecu reset help if so how ?
many thanks in advance.
Bill
I changed the gb fluid 1 month ago and diff oil. car has 28000 miles, any ideas, would a gb ecu reset help if so how ?
many thanks in advance.
Bill
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I think i have a problem and wonder if anyone else has had the same. I have the usual 1500rpm jerk that i have got used to, however recently when cold the GB/torque converter keeps jumping on and off at constant low speed untill warm, feels as if its changing from 5 to 4 and back but i dont think its the gb changing. I think its the converter engaging and disengaging. more concerning that the usual jerk.
I changed the gb fluid 1 month ago and diff oil. car has 28000 miles, any ideas, would a gb ecu reset help if so how ?
many thanks in advance.
Bill
I changed the gb fluid 1 month ago and diff oil. car has 28000 miles, any ideas, would a gb ecu reset help if so how ?
many thanks in advance.
Bill
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From: Philadelphia, PA
2008 A8L, 2002 996TT X50, 2009 X5
I think i have a problem and wonder if anyone else has had the same. I have the usual 1500rpm jerk that i have got used to, however recently when cold the GB/torque converter keeps jumping on and off at constant low speed untill warm, feels as if its changing from 5 to 4 and back but i dont think its the gb changing. I think its the converter engaging and disengaging. more concerning that the usual jerk.
I changed the gb fluid 1 month ago and diff oil. car has 28000 miles, any ideas, would a gb ecu reset help if so how ?
many thanks in advance.
Bill
I changed the gb fluid 1 month ago and diff oil. car has 28000 miles, any ideas, would a gb ecu reset help if so how ?
many thanks in advance.
Bill
Junior Member
Joined: Dec 2007
Posts: 40
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From: Hong Kong
C32
I think i have a problem and wonder if anyone else has had the same. I have the usual 1500rpm jerk that i have got used to, however recently when cold the GB/torque converter keeps jumping on and off at constant low speed untill warm, feels as if its changing from 5 to 4 and back but i dont think its the gb changing. I think its the converter engaging and disengaging. more concerning that the usual jerk.
I changed the gb fluid 1 month ago and diff oil. car has 28000 miles, any ideas, would a gb ecu reset help if so how ?
many thanks in advance.
Bill
I changed the gb fluid 1 month ago and diff oil. car has 28000 miles, any ideas, would a gb ecu reset help if so how ?
many thanks in advance.
Bill
So now, the car still got little jerk and I think it's no problem, the jerk follows me for 5 years already, no performance drop. But I've found 1 thing, try to put on gas slow to 1/4 throttle, then you can step it heavily you want. I think AMG put this in purpose to avoid GB damage in high power car, maintain a little bit slip on low rpm. I didn't find any jerk when I get used to drive it like that.
Last edited by djoa; Oct 18, 2012 at 12:34 AM.
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From: Ft Lauderdale FL.
05 crossfire w/SL55 drivetrain installed by Rudy Compart Intake/Needswings best et-10.76 @ 129
it is the supercharger turning on,, it you floor it and keep it floored it will not do it but if you leave from a red light and get to the other side of the street and all of a sudden the car jerks,, between 12 and 1600 rpm the S C cuts in if you have either upper or sc pulley it will be more Noticeable.
You can hit the "w" switch ,Which makes the car start out in second gear, that would reduce some of it but not all, just put it to the floor and enjoy it jim
You can hit the "w" switch ,Which makes the car start out in second gear, that would reduce some of it but not all, just put it to the floor and enjoy it jim
Thread Starter
Junior Member
Joined: Aug 2012
Posts: 21
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2001 C32 AMG
it is the supercharger turning on,, it you floor it and keep it floored it will not do it but if you leave from a red light and get to the other side of the street and all of a sudden the car jerks,, between 12 and 1600 rpm the S C cuts in if you have either upper or sc pulley it will be more Noticeable.
You can hit the "w" switch ,Which makes the car start out in second gear, that would reduce some of it but not all, just put it to the floor and enjoy it jim
You can hit the "w" switch ,Which makes the car start out in second gear, that would reduce some of it but not all, just put it to the floor and enjoy it jim
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Thread Starter
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2001 C32 AMG
I got the same problem before, I've found out the throttle angle sensor problem, the system didn't know you put on throttle or not.
So now, the car still got little jerk and I think it's no problem, the jerk follows me for 5 years already, no performance drop. But I've found 1 thing, try to put on gas slow to 1/4 throttle, then you can step it heavily you want. I think AMG put this in purpose to avoid GB damage in high power car, maintain a little bit slip on low rpm. I didn't find any jerk when I get used to drive it like that.
So now, the car still got little jerk and I think it's no problem, the jerk follows me for 5 years already, no performance drop. But I've found 1 thing, try to put on gas slow to 1/4 throttle, then you can step it heavily you want. I think AMG put this in purpose to avoid GB damage in high power car, maintain a little bit slip on low rpm. I didn't find any jerk when I get used to drive it like that.
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Senior Member
Joined: Aug 2010
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From: Ontario, Canada
2002 C32 AMG
Tranny jerk is normal. It's the torque converter lock up. All high performance auto transmissions that take power have harsh locks. I don't know why people continue to think that this is a malfunction. It's a reality of a high performance automatic car.
In some cases, slip or very harsh jerks can be attributed to glycol contamination or lack of or too much fluid in the transmission. Check transmission oil levels and glycol test if you're really concerned.
BTW, it's definitely not the S/C kicking in. That works seemlessly, you don't even feel that. The jerk is felt during 1st-2nd gear changes at low revs (~2000RPM);.
Bry
In some cases, slip or very harsh jerks can be attributed to glycol contamination or lack of or too much fluid in the transmission. Check transmission oil levels and glycol test if you're really concerned.
BTW, it's definitely not the S/C kicking in. That works seemlessly, you don't even feel that. The jerk is felt during 1st-2nd gear changes at low revs (~2000RPM);.
Bry
Last edited by Autotechnica; Nov 5, 2012 at 01:43 PM.
