here is the full story. just gotten truck out of the shop for a lower end rebuild and diff rebuild, truck set for about 5 to 6 months with no battery or motor. Engine runs great! besides a P1000 code.
I can drive down the road and can't go no faster then about 40mph without going to or over 3grand on the tac. I took it to auto parts store and gotten codes for both shift sol. and found out that the internal wiring harness was bad, and replaced it today. and cleared the codes. left parts store truck went shifted to 2nd and started to seem like it was going to go into 3rd then the rpm's went up like I was getting on the pedal when I wasn't and now it is going the same thing again. but took it back to parts store and checked for any codes and just got P1000 code and code about my speed sensors but they have been bad for a while.

Any help will be great!

Thanks!

 

I've never found a parts store that can read most transmission codes. They usually can only read codes that turn on the check engine light. There could be transmission codes stored that would point to the problem. Take it somewhere that knows what they are doing to get them read.

 

update only!
just got computer scanned, was showing shift solenoids A & B not working. "again"
OD light not flashing any codes.
Also did a stall test just for the fun of it. first time TC locked in at about 1200rpm, 2nd time I did stall test, TC never locked in. could the TCC Sensor cause all of this?
cause like I said b4 when I drove the truck to school to work on it, the transmission was working great with no issues besides a small leak around the pan gasket.
no work was done on the trans besides the replacement of the internal wiring harness.

 

What codes are you getting? Not working isn't enough description. If I had the numbers I could make better suggestions.

What do you mean by the torque converter locked in? Is 1200 RPM where it stalled at? And the next time what happened when you did the stall test? Never locked in doesn't mean anything to me.

It can't be the TCC sensor. There is no such sensor. Do you mean TCC solenoid? That won't cause any of these problems.

 

I cleared the codes but I am sure I can go down the road to get them to trip again.
I know I had 4 codes for the shift solenoids 2 saying their not shifting and other 2 saying malfunction confirmed
my auto tech instructor told us that if you have a tachometer to hold brake pedal, put trans in drive and while holding the brake to apply gas and where the tachometer stops rising, that is your TC Stall rating.
first time it went to about 1500rpms and 2nd time "few moments later" it went around 2200rpms and I stopped it myself.

I will try to get a video of what my truck is doing to better help.

Thanks!

 

Here is the full list of codes.
Note!: I have had the ABS codes for a very long time.
1.c1155 left front speed
2.C1233 wheel speed left input missing
3.C1158 left speed coherency malfunction
4.C1226 brake warning lamp ground short
5.C1169 ABS fluid greater than max timing
6.P1000 Drive cycle test not complete non-mil
7.P0750 Shift solenoid A malfunction non-mil
8.P0755 Shift solenoid B malfunction non-mil
9.P0750 Shift solenoid A malfunction confirmed
10.P0755 Shift solenoid B malfunction confirmed

Below is the link to a video of my speed and tachometer while driving.
https://www.youtube.com/watch?v=EcQU...ature=youtu.be
link below is a vid of me doing the stall test on my TC. I might be doing it wrong if so please let me know...lol
https://www.youtube.com/watch?v=UNVB...ature=youtu.be

 

P0750 is shift solenoid A is mechanically stuck. P0755 is shift solenoid B mechanically stuck. There must be a lot of debris floating around in this trans to stick both shift solenoids.

These codes indicate both solenoids are sticking, and that can cause your shift issues.

 

trans fluid is all new and bright red.

I am waiting on a friend we are going to pull it up on the ramps and pull the pan again and flush out the system again.
last time 3 days ago, took pan off no metal flakes, some darker reddish in bottom of pan, no burnt smell. will let you know what we find.

If this doesnt work, would me driving it to the college hurt? it's about 30 or 45 mins away. so I can put it on a lift and use our trans system on my trans.

 

'Brake' stall for your issue means absolutely nothing.
'Flash' stall will be higher in RPM but still is not helpful.
Shame on your instructor for even suggesting it as a means to diagnose a trouble where codes are already set.
The A and B solenoids are sticking.
No use pulling the pan or changing fluid again if your not at least going to replace those solenoids.
The codes say they are not reliable in operation no matter what the cause is.
They 'gate' fluid through internal passages in the valve body to operate valves and Servos to apply clutches and bands as per the computer request to upshift or down shift.
If this does not work, the trans does not shift correctly.
The computer knows the solenoids are not working correctly because it monitors the electrical signals the solenoids generate for operate and release and how long the interval is, as a way it knows.
The shifter light does not flash codes. It only alerts of trouble by lighting or flashing to get your attention.
You could not in anyway read a code P0750 or any other code by light flashes with that many character positions, reliably. The reliability part would be your anility to observe the counts accurately. so the designer does not do this..


Good luck.

 

After putting truck on our Snap-On scanner and reading the TSB's on Shopkey5, and a little bit of electrical tracing. the issue is now fixed.
issue came out to be that the internal harness wasn't resting between the metal saddles of the shift solenoids. Causing the harness not to connect to the solenoids and closing the circuit.


Thanks for all the help!

 

Thanks for the post Vip3r82! I am having the same problem with my 2000 Ford e150