My 2005 MCS has the 6 speed automatic and yesterday the car shifted from 3 to 4 and nothing by motor revs. Pulled over and turn the car off and when I restarted the car flashed the EP code. The car would not go in any gear but when I press the gas pedal the car would move slowly. The day the car would drive in 1,2&3 gears and then 4th and nothing by motor revs. I disconnected the battery for 12 hrs and when I reconnected it the EP code was still there. I still only have 3 forward gears but the car will go to about 50 mph. If I reset the computer with a ode code reader is there any chance the transmission will go back to normal or does it need a new valve body. I need advise

 

Sounds like it is eating the clutch packs was it run low on fluid?

 

Definitely check the fluid level and, if possible, the linkage. Let us know what you find out.

Drive Hard. Drive Safe. Keep Grinning.

 

I have changed the fluid three times per the Pelican Parts Tech Article in the last six months. I have not seen any leaking so I feel like the fluid level is OK. If the clutch paks are bad I don't think I would 1 through 3 gears. It feels like the 4 gear valave is not working.

 

I need some of the auto trans guys here to give me an idea of what to do.