Read that a few times,,

So your seeing no voltage with key ON~D on your meter, and Battery voltage Key OFF?

 

Seeing voltage when in key ON~D and no voltage with Key~OFF.

 

[QUOTE=Vmsons02;104718]Seeing voltage when in key ON~D and no voltage with Key~OFF.[/QUOTE

Again thank you for all your help!

 

[QUOTE=Vmsons02;104730]where you go Hayapower?

 

When you replace the harness/s did you replace with repair pigtails?

Testing the pins for power distribution and PCM supplied grounding to manage or operate the solenoids should prove out electrical control. Since you replaced the solenoid pack doubt they'd be the issues, more so since no codes are reported. Could OHM test the solenoids to make sure their values are spec, but again if off, codes generally would be generated.

How many miles on your E4? The symptoms are the exact same prior to the pack and the MLPS replacements?

 

Yes, replaced with pigtails and have gone back to double check making sure wires were connected correctly. 163,000 on E4 assuming its original. Same symptom since all replacements. Only code that keeps coming up on scanner is 654 “not in Park” but truck starts in P. Could replace again “MLPS” since it’s cheaper than PCM?

 

MLPS was indexed on its scribed marks?

One of the reasons I asked about prior isssues or 'after' parts replacement is,, during the MLPS replacement the manual lever needs to be held from rotation. If not and allowed to rotate over during the replacement it can put stress on the internal detent spring/tab and bend it causing the manual spool valve to be off position causing a cross bleed for line pressure/applications. Doesn't happen to often, but can..

If it was bent, generally will show up when indexing the sensor, or having difficulty with enough slot range adjustment to the index. If you still have your old sensor, you could ohm test to cross check new to old values before another new. Same with the solenoid pack.

The MLPS is a drop down series of resistors for position reporting. If the PCM doesn't see the correct value usually 634 is stored, if missing, 654 is generated. You could also ohm test the MLPS connector to the PCM connector in case there's a circuit open, short, high resistance etc..

Sounds like it's electrical in nature, more so since the manual shifts are correct.
If you know anyone, or have a scan tool capable of PIDs you can see the MLPS ranges on screen during selections as matched to the sensor and the shift lever positions...

 

sorry for delay new work schedule. So,i have double checked MLPS position and is correct, pulled harness and checked all wires for continuity and correct pin location, also correct, and installed a new ECU with no change of symptoms. Hope these repairs narrow fix since she is driving me crazy!