Archived 48re slipping

[J.Alexander]

Help in Houston, tx. My 2004 5.9 stock, with 48re trans is slipping. Seems to work ok after it shifts to 2,3,4. Does anyone know a good trans shop in Houston?

 

[cerberusiam]

Probably starting out in D, try manually shifting it and see if it works better.

 

[J.Alexander]

You are correct! If I place the truck in "1", it starts off normally, I then move to "2", then "3". all ok. But it is apparently not downshifting. Any ideas on what causing this.
Much appreciate the info. Thanks, Jim alexander

 

[cerberusiam]

Yeah, gov pressure transducer and\or solenoid is the usual cause. Pretty normal symptoms and failure, easy t replace by just dropping the trans pan.