Joined
·
5 Posts
Hi everyone. I have a 99 SE with a duratec and AX4N transmission with 132k miles that has the hesitation shifting between 1st and 2nd. It only happens after the car has warmed up (been driven 20 miles or so), and it only occurs randomly but does it a lot more in stop and go traffic and much more in summer compared to winter. It feels like it shifts into neutral for a few seconds and the lurches back into 2nd. I also noticed that it does not have this problem when using Drive to start out and then shifting to overdrive after the 1st to 2nd shift.
The car has been doing this for a while, however, I finally got tired of it and took it to my mechanic, but he didn't find any codes and couldn't replicate the problem. He suggested that the trans is slipping, however, based on other posts here, I think it could be the vehicle speed sensor (VSS). Trans shifts perfectly otherwise and does not burn or use any fluid. I had the trans fluid and filter changed but it did not help.
Can the VSS have issues in overdrive but not drive? Also, does a bad VSS always cause a code to show up? My mechanic doesn't want to replace the VSS because he doesn't think it is broken, but I am hoping to convince him to replace it.
Does anyone have any thoughts? Any help would be appreciated. I have researched other posts, but could not find any mention on the code issue. Thanks.
The car has been doing this for a while, however, I finally got tired of it and took it to my mechanic, but he didn't find any codes and couldn't replicate the problem. He suggested that the trans is slipping, however, based on other posts here, I think it could be the vehicle speed sensor (VSS). Trans shifts perfectly otherwise and does not burn or use any fluid. I had the trans fluid and filter changed but it did not help.
Can the VSS have issues in overdrive but not drive? Also, does a bad VSS always cause a code to show up? My mechanic doesn't want to replace the VSS because he doesn't think it is broken, but I am hoping to convince him to replace it.
Does anyone have any thoughts? Any help would be appreciated. I have researched other posts, but could not find any mention on the code issue. Thanks.