Hello everyone, new member to the forum so please bare with me. I've been having some issues with my ZJ the past couple weeks. It hasn't been shifting into overdrive. Mind you I live in Northern Wisconsin and it is freakishly cold up here this year, but I always let it warm up to temp before I take off anywhere. It wasn't until that lovely -40 f day that we had that it started doing this and the problem has persisted. I even drove 72 miles the other day without it ever going into overdrive. I didn't like it but I hadn't the option. I have replaced the trans filter with a new kit along with new fluid. No evidence of any destruction in the pan. I've checked the temp of the fluid after run time fulling expecting to burn my fingers but it was hardly even warm. What is going on here?
I had this problem before. Long drive on the highway in OD, slow down going through a city then it wouldn't go back into OD.
Definitely block the grill with cardboard or something. It'll help out keeping the engine and transmission warm. I blocked off 6 of the openings for the warm days (because here, it'll be -25*f one day and 32*f the next).
'96 stock ZJ
Originally Posted by Crashnburn80
...so assuming your Jeep is right-side-up you should be ok.