2011 f150 service advance trac failure

[DangerRanger]

Hi all, doubt this is the best place to ask but why not.

Have been having issues with my 2011 f150 for years now off and on.

Warning: service advance track, abs failure, brake failure

Feeling: Pedal gets very odd feeling and clicks/pulses as abs fails.

When: when it’s hot outside, stop and go traffic, long periods of holding the brakes (in drive through line etc) when you slam on the brakes (ie, when you need them)

Over the course of this issue (years intermittently) I’ve had my brakes serviced, I’ve had the whole front brakes replaced(caliper seized) I’ve had this specific issue diagnosed 3 times and twice they came back with right rear speed sensor failure where code reader showed its transmission going all over the place, once they couldn’t make the damn thing fail.

I’m at my whits end. I don’t want a new truck, I have a paid off truck, but I can not keep driving my kids around in a vehicle that might not stop.

Any ideas? My mechanic just keeps plugging in a code reader and throwing speed sensors at the damned thing. Total waste of money

If it matters, 2011 5.0 6 speed 4x4 267k miles

 

[Thinkingman]

I would have suggested speed sensors but you've obviously covered that.
Maybe the ABS unit itself?
I'm guessing here...I would also find a rebuilt unit rather than pay for new.

 

[Steve300xcw]

Honestly?

Its a 15 year old 300k mile rig. You need to find a nice deer or an icy corner and let your brake problems solve the issue...

I wouldnt want a new rig either. But a lil fresher rig isnt a bad thing.

 

[DangerRanger]

Honestly?

Its a 15 year old 300k mile rig. You need to find a nice deer or an icy corner and let your brake problems solve the issue...

I wouldnt want a new rig either. But a lil fresher rig isnt a bad thing.

Not sure spending 25k for a 150k mile truck with unknown history is really gaining me much ground at this point

But it may come to that if I can’t figure out the brake thing. Otherwise I have no reason to get a newer truck, and nothing about a 10 speed excites me

 

[The_Jim]

Had something similar on my 2016 f-150. There are splines on the wheel bearing used as an encoder for rpms. They replaced the wheel bearings and it went away.

The reason for the ABS faults was because the corroded encoder was missing tach counts and made it believe the wheel was locked up.

 

[DangerRanger]

Had something similar on my 2016 f-150. There are splines on the wheel bearing used as an encoder for rpms. They replaced the wheel bearings and it went away.

The reason for the ABS faults was because the corroded encoder was missing tach counts and made it believe the wheel was locked up.

Interesting!

 

[IdahoBeav]

If it matters, 2011 5.0 6 speed 4x4 267k miles

That's gotta be a record for an F150

 

[Svivian]

That's gotta be a record for an F150

Theres alot of 5.4 v8's still on the road with well over 300k and 400k surprisingly. Thats only after breaking off spark plugs a few times

 

[Yooper]

Had a '13 with similar issue. I ended up replacing the entire ABS module.

 

[Netherman]

Feeling: Pedal gets very odd feeling and clicks/pulses as abs fails.

ABS is trying to do it's thing, realizes its doing it wrong, and faults out.

Option A:
I'd check or have the wiring harness checked. A lot of times wet/splashy days will cause weird behavior if this is your problem. Heat being a driver is a weird one, but may be an electronic controller issue.

Option B:
As painful as this will be you need to take it to someone who can read the "real" codes (likely a ford dealer). Brake controllers have limited OBD (federally required) codes and most code readers won't get all of them. This could point you towards the wiring, electronic controller, hydraulic unit, tone ring, or sensor (sounds like not a sensor).

 

[DangerRanger]

ABS is trying to do it's thing, realizes its doing it wrong, and faults out.

Option A:
I'd check or have the wiring harness checked. A lot of times wet/splashy days will cause weird behavior if this is your problem. Heat being a driver is a weird one, but may be an electronic controller issue.

Option B:
As painful as this will be you need to take it to someone who can read the "real" codes (likely a ford dealer). Brake controllers have limited OBD (federally required) codes and most code readers won't get all of them. This could point you towards the wiring, electronic controller, hydraulic unit, tone ring, or sensor (sounds like not a sensor).

“Dealer”

Boy I hate that word

And is going to make it very difficult since some days it won’t go off at all

 

[DangerRanger]

Had a '13 with similar issue. I ended up replacing the entire ABS module.

DIY or a shop?

I’d almost rather throw parts at it myself than go back through the “diagnostic fee” circus of paying 200$ a pop for someone to not figure it out or replace the wrong part

 

[DugLyfe]

I was thinking abs system. I had a similar issues I ended up taking the ABS fuse out. ABS Light is always on but I was able to stop just without ABS.