Sorta continued from another post, but I had it in the wrong section I think. Anyway, got a 2001 Impala 3.8 with 139,000 on it. Already had the typical work done to it... catalytic converter and o2 sensors, thermostat, intake manifold and gasket repair, and a few other things. But the transmission is now acting up.
So, it starts, drives, and shifts fine with no problems, until I get to 4th gear, or Drive. It never shifts from 3rd gear, no matter what. Tried Lucas cleaner but nothing. Took it in yesterday to have it scanned at a transmission shop, but there are no error codes. Funny part is that the computer "reports" that the car is in 1st gear... ALL the time. If it's in Park, Neutral, Reverse, or whatever, the computer thinks it is in 1st gear. This is odd because it seems like the car wouldn't even start with the computer thinking it is in 1st gear instead of Park.
Anyway, trans shop says it "could" be the relay that is inside the transmission, about 550-600 to replace. This brings up a lot of questions for me... Can I do something to reset the computer completely and then have it scanned again? Do I just have the relay replaced? Or do I just have the transmission rebuilt totally, which includes replacing the relay, because of the high mileage?
So, it starts, drives, and shifts fine with no problems, until I get to 4th gear, or Drive. It never shifts from 3rd gear, no matter what. Tried Lucas cleaner but nothing. Took it in yesterday to have it scanned at a transmission shop, but there are no error codes. Funny part is that the computer "reports" that the car is in 1st gear... ALL the time. If it's in Park, Neutral, Reverse, or whatever, the computer thinks it is in 1st gear. This is odd because it seems like the car wouldn't even start with the computer thinking it is in 1st gear instead of Park.
Anyway, trans shop says it "could" be the relay that is inside the transmission, about 550-600 to replace. This brings up a lot of questions for me... Can I do something to reset the computer completely and then have it scanned again? Do I just have the relay replaced? Or do I just have the transmission rebuilt totally, which includes replacing the relay, because of the high mileage?