Hard Shift 3rd to 4th under high Torque

[rambo]

Hello,

I have an issue hard shifting from 3rd to 4th gear under high torque. This only happens when I really step on it full throttle. If I drive casually, the car shifts up and down no problem. Other than this issue, the car has been driving like a dream since I completed the repairs noted below. Very strange that this only happens when tranny is under high torque.

Car Info:
2005 Lincoln LSE, V8
Recent work done to car:
1. Transmission fluid / filter replaced
2. All Coils & Plugs replaced (OEM)
3. All Fuel Injectors replaced (solved hard start problems after car warmed up and tried to start within one hour. If car sat 3+ hours or overnight started right up. Leaky Fuel Injectors)
4. Replaced Valve cover gasket
5. Fuel Filter replaced.

Thanks in advance for the help!
Tim

 

[Andrizzle]

Transmission solenoid on the top of the trans is likely involved. Also you probably need to have the valve body rebuilt in the trans.

My 2004 has had this for a long time now, the solenoid replacement only helped - but it is not 100% until valve body. For reference my car is at about 175K miles.

I don't think I have ever really heard of injector issues on the V8 before.

 

[rambo]

Transmission solenoid on the top of the trans is likely involved. Also you probably need to have the valve body rebuilt in the trans.

My 2004 has had this for a long time now, the solenoid replacement only helped - but it is not 100% until valve body. For reference my car is at about 175K miles.

I don't think I have ever really heard of injector issues on the V8 before.

I was having issues with the car "hard starting" and would crank for a while before turning over a while. Turns out the injectors were leaking