4wd light?

[bryanstoj]

I have a 1999 Jeep Wrangler SE with 4wd. The problem is when i put it in 4wd the indicator light does not light up, but the jeep feels like it is in 4wd. Can anyone help?

[helmut1]

I have the same problem with my 2003 Sport. 4-Wheel drive is definitely working as we just got about 16 inches of snow yesterday and I used it regularly all day. I am assuming that there is a switch somewhere that is triggered when you pull the handle, but I am not sure. Hopefully, someone can help us both out with an answer.

[baileya400]

I had a 85 cherokee that the light was controlled by a vacuum switch. Don't know if its the same with the newer ones or not but you might look for a kinked hose or something.

[stangfreak7]

my 83 cj-7 has a hook up on the transfer case, so when it gets engaged in four wheel, the light will hook up. not sure if the newer ones run a simliar system or not but try looking around there to see if a vaccum line etc has been pulled off or if one is losing vaccum from old age.

[myjeepsux420]

The light is triggered by a switch in the front diff. It's located on the pass side of the diff. It's just a small switch that turns on the dash light when the diff is locked. I bet the bulb in the dash is out, or one of the two wires going to the diff switch are broken.

[gtmud]

If your front axle has vacuum lines going to it, trace them out to the T-case. On the 91's there is a switch mounted on the DS top of the T-case that controlled the vacuum to the front axle. It might be bad, also trace your lines out, on the 91 I found that the plastic lines were cooked by the exhaust. Once I repaired the lines, all worked well. If you have the vacuum actuator, try using a vacuum line hooked to one of the two ports and see if it doesn't give you a light(engaging front axle) I did this as a temporary fix, it works and will help you T/S the system.

[gtmud]

Hook the other end to a vacuum source to get your vacuum.