So I have a 2014 F150 2wd 5.0 bought it with 74k on dash. I’ve had it for a couple years now and have installed a new gear set (4:56:1) and a cold air intake, as well as using a speedometer calibrating tool to adapt for the gears. When I am rolling in first and floor it going into second I usually get a very worrying and abrupt cutout (only way to explain it). Not only is this annoying since I want to have some fun and be able to confidently be pinned through my lower gears. But it is also worrying as I am unaware if this is something that even has to do with actual drivetrain and not something through the computer. If anyone has any relation I would appreciate a response.

 

What transmission maintenance have you done? How many miles now? Have you checked any PIDs with a scanner? Like to see how the cats are performing? Other maintenance like cleaning MAF, TB, etc? That isn't an oiled CAI, is it?

 

Turn off traction control/stability control.

 

Oh, that reminds me. Could be axle wrap.

 

Yup, the high gear set and likely AT tyres with the driving description strongly suggest it's a traction issue, causing ignition cut and potentially axle wrap.

 

A few questions to help me learn. What is axle wrap? Why would any issue cut off ignition? I've had a worn ignition switch in an Oldsmobile that due to a bunch of stuff on the Key chain (daughters) would move the switch on occasion.

 

The ignition cut that *I* referred to was the likelihood that it's traction control being activated, more likely than ever with the re-gear.

A little google will give a better explanation than i can, i also call or refer to it as axle tremor (remember the scene in Bullitt where he's in the chase and has to reverse out of a mess he got him self into? that)


"Axle wrap is a condition that affects vehicles equipped with leaf-type springs under extreme acceleration and, occasionally, deceleration. When the driver of a leaf spring-equipped vehicle applies excessive throttle, the rear axle housing attempts to rotate around the axles as the tires grip the road's surface."


In fact, here, i'd time stamp the part, it's about a minute in, but, no, watch the whole thing, as it's supposed to be

 

Thanks for info. I think we use to refer to that as wheel hop. Also now that you mentioned the rear housing trying to rotate, some guys had ladder bars on the cars I think to help with that.

 

This sounds like my exact issue. I have no issues what so ever at any other speed or gear im assuming purely due to the aggression of my 1st gear when it finally catches grip.

 

I just want to say I really appreciate the replies as it has helped. I have 92k on the truck now. I have had all services/maintenances done. And redone recently (2 weeks ago) and no it is not an oiled filter. I firmly beilieve that the axle wrap is the issue as I’ve never thought of it but it fits perfectly.