2005 5.7 transmision problems only 1-2
I`m having tranny problems with my jeep. I bought the car in this condition and I`m figuring this out..well im trying..
jeep gc 2005 5.7 hemi with 545rfe, car has 26000 miles on it
the car start good, shifts to R, D good, smothly, on D from start there is no slippage no hessitation, good engage of 2 and when there supposed to be 3 it suddenly slips like it was on N.
there are two codes for tranny - P0869 line pressure high and P0932 line pressure sensor circuit.
I`ve replaced pressure sensor, no change after. does P0932 line pressure sensor circuit mean that not the sensor but some cirtuit is faulty? wheres` this circuit? in PCM?
Ive checked wires from line pressure sensor to pcm, not grounded and not open, also Ive checked a supply wire from pcm to solenoid pack, also good.
I took down pan and valve body, opened solenoid pack, 6 solenoids (coils) are good I think, I meassured their resistance and they all have 3.5 ohms, I dont have info if this value is correct but if all have the same 3.5ohms it might be ok. there is another coil , its horizontal and it was faulty, I took it apart, there was a wire not connected, looks like it burnt off around 2 cm after solder place, wire is like 0.2mm so its hard to figure out if it was burnt or broken. I solder it on and coil know shown around 5.1 ohms.
After I put valve body, pan etc. I start the car go on D, before I got to main road for test, tranny put 2 corectly, and I even didnt notice when instead of D, number 3 was on the dash, even when I slowed down almost stopping, 3 was still showing like the tranny was in limp mode.
I stopped and put in N, put in D and drove, 1 ok, 2ok, 3 no gear, it slipped like in N, so only 1 and 2 are good.
anyone have an idea where to look next?
there was no grey slime in tranny, fluid wasnt burnt, of course I replaced both filters and put new atf+4 fluid.
when I took valve body down, I noticed very little coat of rust on solenoid pack steel plate, I know that the car has been not used for a very long time.
there were very little rust on that plate but it was noticable, could it influence solenoid pack electronics?
I think it might me electrical, but what to replace?
solenoid pack? or maybe pcm?
I dont want to throw away $ so I havent decided which way to choose
buy solenoid pack?
I can buy used tranny here for around 900$ but what it doesnt change a thing, and the problem lies for example in pcm?
sorry for the lentgh, I just wanted to put all information I have about this problem so maybe someone could help a little