H4Low and rear diff lock help

I felt like trying 4x4 low today and my rear differential lock, had truck in first gear and neither would work? Am i doing something wrong?

 

Put the truck in neutral, switch to 4wd or 4lo, put shifter in low, press diff lock button and have fun! make sure your in loose terrain

 

tried that too, 4 low only blinks and makes a beeping sound and the locker only blinks. Followed the directions in the manual too , nothing.

 

hmm sounds like you got a problem

 

ARG! Guess its the dealer again for me. Maybe they can figure out why my truck is so bad on gas, im guessing i need to change plugs? It only has 22,000 miles.

 

Also the other day when i was driving around 40 mph in 4x4 high the truck seemed like it was fighting itself to move, jerking the whole time.

 

Hmmm, sounds like a problem, I'm assuming you've never had this work successfully before?. It must be in Neutral (foot on the brake) to engage the 4Lo (give it a second) once the 4Lo is engaged, put it in Drive, then push the locker button while under 5mph.

Also, your last two comments sound like an engine issue, not a 4x4 (drivetrain) issue. The truck requires a bit more power to run 4x4 than it does 4x2, so if your engine is crapping you will definitely feel it in 4x; also concurrent with the MPG loss.

 

Sounds like he's using 4WD on dry pavement.

 

dry payvment has not been seen in buffalo in around 4 weeks. at least 4 inches of snow on the ground every day. Im taking it to the dealer soon.

 

Ah it works today yay.

 

Any idea what caused it?

 

I dont know, but my front end vibration is back with full force now that the roads are just wet today, this happend after the dealer worked on my truck, suspension tsb, now it vibrates like a pos!

 

to get into 4lo I put it in nuetral while the truck is still rolling very slowly... click it in 4lo and move the steering wheel back and forth for just a few seconds. usually clicks right in

 

Sometimes you have to drive a few feet before the Diff kicks in; especially if you haven't used it in awhile.

 

If you have a manual tranny the CLUTCH has to be pushed through the floorboard it seems like the entire time the switching and blinking is goin on. (Unless you unhooked the clutch safety wire. HEHE)

 

They are supposed to re-align the front-end after the suspension TSB. They probably either didn't do it, or they did it wrong. Raise hell.

 

They did do it wrong when i showed them after goodyear did it right they just said oh. I dont know how i can get anything from it! My tired are screwed up and my truck has vibrated since the tsb.