rough shifting '02 L100 w/ 41,000 mi
I am into month 3 of an intermittent shifting problem. 98% of the time
shifting is smooth, the problem arises usually when the car is warmed up. Symptoms of the poor shifting will be a delay past the usual rpm point of shifting with a "slamming type kick in the pants" changing of gears. The dealer has changed the input speed sensor and the pressure control solenoid twice. The difficult aspect of all this is I spend days waiting for the problem to duplicate for the mechanic (he drives my car) where he will then attempt a fix. The last time I was told they will call Tech Support for help. They phoned me yesterday to tell me they were still driving/waiting for the problem to duplicate again, my thought was why? Well, the mechanic is obviously stumped. I Googled and found this: http://groups.google.com/groups?hl=e...%3D10%26sa%3DN Does anyone have any suggestions? My patience is wearing thin. |
Keith
I am one of the posters that you found through Google. In my case there was a Code 1811 "Max Adapt and Long Shift Relearned TCM". They replaced the Control Pressure Valve, Transmission Oil Pump Shaft and reprogrammed the TCM. I have not had a problem since. Brian "Keith" > wrote in message om... >I am into month 3 of an intermittent shifting problem. 98% of the time > shifting is smooth, the problem arises usually when the car is warmed > up. Symptoms of the poor shifting will be a delay past the usual rpm > point of shifting with a "slamming type kick in the pants" changing of > gears. > The dealer has changed the input speed sensor and the pressure control > solenoid twice. The difficult aspect of all this is I spend days > waiting for the problem to duplicate for the mechanic (he drives my > car) where he will then attempt a fix. The last time I was told they > will call Tech Support for help. They phoned me yesterday to tell me > they were still driving/waiting for the problem to duplicate again, my > thought was why? Well, the mechanic is obviously stumped. > I Googled and found this: > http://groups.google.com/groups?hl=e...%3D10%26sa%3DN > > Does anyone have any suggestions? My patience is wearing thin. |
"Brian Hurley" > wrote in message >...
> Keith > > I am one of the posters that you found through Google. In my case there was > a Code 1811 "Max Adapt and Long Shift Relearned TCM". They replaced the > Control Pressure Valve, Transmission Oil Pump Shaft and reprogrammed the > TCM. I have not had a problem since. > > Brian Brian thanks for the input. Saturn called me back and said they had tech support involved. The lead mechanic was also in Spring hill for classes and was able to talk to engineers down there as well. One of the things to be done is for the problem to duplicate while hooked up to a portable diagnostic computer. That could take as long as a week or more to occur, meanwhile I'm driving a creaky loaner car with 150,000 mi on it. They're really trying so I will be patient and see what evolves. Keith |
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