Fritz400

Thank you, yeah it has 85k and I am positive only the engine oil has been changed, and the transfer case since its been replaced. I have 5 qts of mobil 1 75w90 for both diffs I've just been waiting for warmer weather. I'm also doing the trans fluid/filter, brake, and coolant.

tvsjr

Read the DTCs, that may tell you something a little more definitive. Even if the CEL isn't on, there's likely codes stored.

Did you not test-drive the vehicle before purchasing?

Fritz400

There are no codes on or stored. Of course I test drove the vehicle but I didn't take it through mud or snow to make sure the 4x4 doesn't disable. I test drove it for probably 40 miles and tested everything, I couldn't see inside the little frame holes where all the packed mud and dirt are until I got it home and was messing around with it. The truck was running fine for a week after purchasing. I'm sure the dealer or affiliated shop cleared all codes on it.

I just shifted into 4Auto at 5mph no acceleration, it read shift in progress and then a loud metal on metal bang. I've read other members say there's does that and they think it's normal, but that def doesn't sound normal.

52merc

If I shift from 2H to 4A or 4H at any speed, I just take my foot off the accelerator and coast for a second or two while the shifting in progress is displayed on the info cluster. I never hear a noise from the TC. Only time I hear the TC is shifting from 4H to 4L, which I only do with the truck stopped and N. Although I don't use 4L very often, I try to engage it once a month. I didn't do this often enough on my old Sport Trac and it would take forever to engage and/or disengage 4L.

tvsjr

Yep, absolutely not normal. I hope you have recourse with whomever sold you the vehicle, or some sort of warranty.

tareed94

To me it sounds like the transfer case isn't right still. It's shifting to 4x4 hard, then it's shutting down. If I had to guess, it's either not fully engaging to 4x4, or it's slipping out.

vulnox

Could it be a bad sensor? If the message typically indicates overheat, but it's happening just after engaging, it may be a sensor that is fouled up or just bad, possibly due to whatever the previous owner was doing with it. If they were taking it through mud and then started seeing this message the next time they went to use 4x4, could have just dumped it on the first dealer that would buy it. May have an easy solution though if its just a sensor.

southchatham

I don't care what Ford tell you, I still treat it like an old stick 4wd. I slow down below 5mph and put it in 4wd. Same for going back to 2wd. If I had 4A I would do the same.

Joe Tom

lomax

This is NOT normal. I have a 2016 Lariat and shifting from 2H to 4A or 4H it makes no noise at all. With this bang going on and your indicator lights showing no power to the front end I would say that they did a very poor job rebuilding/replacing your transfer case. Hopefully that has some warranty on it.

I did have an issue with my IWE's at about 7K miles but we found out the entire front differential cratered and it was not the IWE's fault. I have heard of others where the 4wd valve (don't know the actual name) get stuck and can cause similar problems.

At any rate it is NOt RIGHT. :-) Sorry.