So I got a 05 tj. Also got a 99. The 99 is a manual and the 05 is auto matic. Now when I go 4 low in my 99 it crawls very slowly down a hill. Specially in 1st gear. Now I tried the same thing in the 05. 4 low and 1st gear and it did not go slow down the hill. It just went and I had to ride the break. Now I also have a 01 2500hd silverado thats 4x4. And when that goes into 4 low and 1st it crawls. So does any one no why my 05 doesn't? It cant be because its automatic cuz so is my truck and my truck does it.
06-05-2013 01:20 AM
Lack of hill assist because of slippage in the auto? That's what I'm assuming. I have the manual 05 rubicon, and even the steepest grades are brake free. It will sit at 500 rpm unless I add gas given the high torque from the 4:1. I tried to stall it once letting out the clutch in 4lo in first with the brakes on, the gearing won.
06-05-2013 01:25 AM
Maybe. I'll have to get it out again and see if a steeper hill gets it in. But even on low down slope the gear should still kick in and slow it down. Or so I thought. I just hate riding brakes down a steep hill. Its in the shop right now so I will have to take it out when I get it.