2010 Camry jerking and high rpm
#11
04-12-2018, 12:00 PM
Try the following:
If possible to safely do this without over revving engine. When the problems occurs, shift trans from D to S and determine if the issue goes away.
And
When in D and the problem occurs, keep foot on gas and tap brake pedal enough to turn on brake light switch. Braking (turning on brake electrical switch) should disengage the lockup clutch system. Determine if problem goes away.
Would speculate the problem is a torque converter lock up system issue.
The trans has a valve that physically controls lockup (done mechanically) via trans hydraulic pressure. The valve action is controlled by the engine computer.
Flex lockup is lockup that is not full on or off. This system is in addition to the typically full on or off lockup mode.
Toyota has had a lot of issues with rumbling, jerking, etc with the flex lockup system. They issued a few service bulletins however can't find anything for 2010.
The fix for rumbling was a replacement "improved" converter.
The revving could be the torque converter slipping when going between freewheeling and lockup mode.
As to fixing the issue don't know for sure. Speculate a bad torque converter.
A bad torque converter (without the added flex lock) can cause rumbling, jerking and slipping.
The issue is lots of owners have complained about jerking, rumbling, etc which has been linked to the flex system and torque converter.
If your trans wasn't slipping would state a flex lock problem.
Either way the torque converter lock up clutch may have issues.
If possible to safely do this without over revving engine. When the problems occurs, shift trans from D to S and determine if the issue goes away.
And
When in D and the problem occurs, keep foot on gas and tap brake pedal enough to turn on brake light switch. Braking (turning on brake electrical switch) should disengage the lockup clutch system. Determine if problem goes away.
Would speculate the problem is a torque converter lock up system issue.
The trans has a valve that physically controls lockup (done mechanically) via trans hydraulic pressure. The valve action is controlled by the engine computer.
Flex lockup is lockup that is not full on or off. This system is in addition to the typically full on or off lockup mode.
Toyota has had a lot of issues with rumbling, jerking, etc with the flex lockup system. They issued a few service bulletins however can't find anything for 2010.
The fix for rumbling was a replacement "improved" converter.
The revving could be the torque converter slipping when going between freewheeling and lockup mode.
As to fixing the issue don't know for sure. Speculate a bad torque converter.
A bad torque converter (without the added flex lock) can cause rumbling, jerking and slipping.
The issue is lots of owners have complained about jerking, rumbling, etc which has been linked to the flex system and torque converter.
If your trans wasn't slipping would state a flex lock problem.
Either way the torque converter lock up clutch may have issues.
#12
04-13-2018, 09:22 AM
Switching from D to S during the jerking stopped it. I have yet been able to safely try the breaking during a jerk.
#13
04-13-2018, 11:51 AM
As to driving in 4th, safety depends on engine RPM. It should be OK to drive in 4th if the RPM is OK. Your MPG will drop of course.
There is the possibility of an issue with the torque converter lock up valving. This is accessed by removing the trans pan. However typically if a problem here, the torque converter does not lock up.
The computer runs checks on valve solenoid electrical resistance and differences in trans RPM versus axle RPM. Thus this cars problems may not be monitored.
The good news is access to the converter doesn't require taking the trans apart. Your biggest issue is labor costs to remove and install the trans.
If you do go to a trans place. Take caution as they tend to like to sell a complete trans rebuilt which this trans may not need.
There is the possibility of an issue with the torque converter lock up valving. This is accessed by removing the trans pan. However typically if a problem here, the torque converter does not lock up.
The computer runs checks on valve solenoid electrical resistance and differences in trans RPM versus axle RPM. Thus this cars problems may not be monitored.
The good news is access to the converter doesn't require taking the trans apart. Your biggest issue is labor costs to remove and install the trans.
If you do go to a trans place. Take caution as they tend to like to sell a complete trans rebuilt which this trans may not need.
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