04.5 3500 2nd gear issue

[spin05]

My 04.5 3500 48re when im going up a hill. if i manually drop it into 2nd gear . It kinda acts like its searching for a gear. Doesnt matter if i have the OD button pressed in or not. Once i kinda mash down on in and give it more gas it quits. No slipping felt or anything. Any ideas ?????

 

[p-Bar]

It's probably the gov pressure solenoid. Known issue on our year truck. It's called "hunting" . It usually does it in drive.

 

[spin05]

Kinda what I was thinking. I did upgrade it but not too the real HD billet base GM one. The new has probly 30k-40k on it.

 

[cerberusiam]

Check the band adjustment and TV cable setting, those are the two items that most affect a manual shift.