4 wd

[jimmy72]

I have a 97 f250, when I engage the 4 wd I hear it engage by the glove box, the light comes on but there is no four wheel drive. There is no noise in the transfer case when I manualy turn the drive shaft. Is it the vacum actuato, or does anyone have a clue.

[big white bufflo]

is that a old body or the light duty 250 i have seen the vacume servo on the frontend get frozen by rust

[jimmy72]

its the lt duty newer body style, the actuator boot is seperated from the housing and is all corodiated, had problems pushing the pin in by hand.

[big white bufflo]

I think you found your trouble lube it up end a little grease and go on your way