Tcc concerns

[18wheelsofhell]

1998 sho has p1744 code can still feel tcc cycle will sometimes catch but most of the time not. After a few failed attempts at it it will trip the light and turn off the imrc also can not shift into first manually with imrc hooked up unplug them an I can shift it into first manually all day what can be the problem?

 

[GEN 3 SHO FAN]

In fact, P1744 is related to TCC. Personnaly, the first thing I will begin with an oil and filter trans change. If the prob still there, I will put a Lucas transmission fix into it. I always start with low cost solutions (in time and money). Many thru time have resolved some trans troubles with a simple oil change.

Someone with better experience in trans may help more here, but sometime is very quiet. You bought the car recently ? I also saw some SHO with some modified wiring on motor and when the car changes of owner, we cannot say really what it was for...

 

[18wheelsofhell]

In fact, P1744 is related to TCC. Personnaly, the first thing I will begin with an oil and filter trans change. If the prob still there, I will put a Lucas transmission fix into it. I always start with low cost solutions (in time and money). Many thru time have resolved some trans troubles with a simple oil change.

Someone with better experience in trans may help more here, but sometime is very quiet. You bought the car recently ? I also saw some SHO with some modified wiring on motor and when the car changes of owner, we cannot say really what it was for...

I already did the fluid and filter an Lucas no better

 

[GEN 3 SHO FAN]

Humm... Trans is linked to many things. I also note that when she kick 3400 rpm and secondaries opens, SARC goes in firm mode.

Is your O/D light is flashing sometime ? Had you made some modif on fluid cooling system and hoses ?

I read that each shift have a some kind of sensor saying to trans when to shift. They are just behind the trans (side) cover. TC have a sensor there too which can fail by time.

I'm on my lunch time right now but I can put photos later.

 

[18wheelsofhell]

Humm... Trans is linked to many things. I also note that when she kick 3400 rpm and secondaries opens, SARC goes in firm mode.

Is your O/D light is flashing sometime ? Had you made some modif on fluid cooling system and hoses ?

I read that each shift have a some kind of sensor saying to trans when to shift. They are just behind the trans (side) cover. TC have a sensor there too which can fail by time.

I'm on my lunch time right now but I can put photos later.

Od light does not blink just shows ses with a p1744 code

 

[GEN 3 SHO FAN]

Ok, you need someone with a better knowledge in transmission than me. I let you some images of trans without his side cover. Some parts fails with time there but I'm not sure is your case, sorry.



Also be careful to watch if you have suspect wiring that can be added over time (near ECM, fuse box or IMRC for exemple).

The trans plug on the top of the trans can fail too over time (just beside the trans range sensor).




It can be the TCC (torque converter slenoid), some poeple had trouble in past with that.

Good luck, and keep us informed, maybe someone here have the answer.