HELP! Replaced gov solenoid and press sensor, now getting P1762 and P1764 codes
I have a 98 grand with a 318 and 44re transmission. It started acting up a while back. After driving for about 6 miles or so it would downshift hard and the rpm's would drop and then kick back up when stopped. Only twice I noticed it would start out in second gear and it threw a P1757 code I believe it was. Because of this code, and knowing that the gov press sensor and solenoid are common failures in these trannys, Sunday afternoon I dropped the pan and replaced the gov solenoid and pressure sensor with brand new ones and also replaced the filter and fluid. I took it for a ride when I was done and noticed it started upshifting better when driving and felt better than ever. It wasn't holding gears as long and was shifting smoother. It was still acting up when coming to a stop though, but not as bad. I parked it for the night and yesterday morning got in it to drive and noticed it was starting out in second or third gear all the time and it threw codes P1762 and 1764. I have NEVER gotten these codes before replacing these parts the night before. So now my Jeep went from acting up after driving for a while, to un-driveable. Is it possible I got a bad part? Should I replace the gov press sensor again and spend the money on it? I really need some advice, I've gotta have my Jeep and times are tough right now financially. Any and all advice is really appreciated. Thanks for your time!