Raptor broke down again!

[hj_s14]

Funny, I'm sitting in the dealer right now to have them fix my raptor too. This time, it's the seats cushions on both passenger and driver came loose. I found it when I vacuum the seat and the vacuum suction lift the cushion up and I was like WTF...

Anyways, this is my 4 trip to the dealer already after Oil consumption issue, replace valve cover, replace shock (leaking), and now seat bs.

I haven't got any major issue yet like Cam Phaser or major issues like some other members here experienced.... But damn, it's a waste of time and annoying. I love how the truck looks .. honestly there's no other truck looks as good as the Raptor and the suspension is great and perform great as well... But these little things drive me insane.

 

[TurboTJ]

Dealer is currently trying to diagnose it. I will update when I hear more.

Same issue on my 2019 limited (same power train package), dealer saw to many DTC's to troubleshoot so no luck. I found on some board an obscure reference to change the Power Transfer Unit fluid. I change the fluid and made sure it was filled to spec and no more issue for the next 5,000 miles. I ended trading for a 2020 Raptor and now use Forscan to pull my own DTC's before going to the dealer.

And that’s what’s so annoying - any error triggers an entire list of unrelated errors! You can’t diagnose it! Every time any little thing happens, I get 15 error messages. Come on Ford, this is not how you design a car.

 

[EricM]

Actually, that IS how a car is designed nowadays. It's all connected. You want lane keeping and traction control and stability control and all that crap? Well, when it doesn't know how fast one wheel is turning- none of it works.

The 2000 to 2008 period of time has the most reliable and easy to service Ford vehicles ever made. All the systems were modern, but separate. The bus wasn't a thing yet. They have gotten more complex and more difficult/expensive to service since then.

 

[TheTeej]

Gonna be a long time under the hood of Gen 2 looking for a MAF sensor.

Point hilariously taken. Could it be a MAP issue?

 

[TurboTJ]

Ford just called. They reset and updated the PCM and said to “keep an eye on it”. Can anyone confirm there was an update available for our PCM’s?

They also said that these vehicles with all their computers just can’t be reliable Well, it’s certainly appearing that way. It’s fine to make everything computerized. However, it should also be fault tolerant. It’s not acceptable if a malfunctioning wheel speed sensor cripples the entire vehicle. This was a real f up from Ford’s System Engineers.

I am going to try and reproduce the problem when I get it back. Last night, if happened by placing the transmission in M10 at roughly 65MPH and accelerating fairly hard (high boost, low RPM). I’m guessing Ford did not tune for this corner case.

 

[TXRaptor]

Last night, if happened by placing the transmission in M10 at roughly 65MPH and accelerating fairly hard (high boost, low RPM). I’m guessing Ford did not tune for this corner case.

Any particular reason you were in M10 and trying to accelerate hard without letting it downshift? Just curious about the use case...

 

[Johnkn]

It’s fine to make everything computerized. However, it should also be fault tolerant. It’s not acceptable if a malfunctioning wheel speed sensor cripples the entire vehicle. This was a real f up from Ford’s System Engineers.

No, as stated earlier, wheel speed sensors are an intregal part of a number of systems on modern cars, certainly not only Raptors. ABS, traction control, hill decent, etc.etc all rely on input from wheel sensors to operate. A sensor fails, coms to the wheel is lost and the systems report a fault. That's exactly the way they are designed to operate.

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[smurfslayer]

No, as stated earlier, wheel speed sensors are an intregal part of a number of systems on modern cars, certainly not only Raptors. ABS, traction control, hill decent, etc.etc all rely on input from wheel sensors to operate. A sensor fails, coms to the wheel is lost and the systems report a fault. That's exactly the way they are designed to operate.

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Sure, all well and good. Why can’t the truck fail into ‘normal’ drive mode without going into limp home mode? seriously, this is kind stupid $hit bmw would do, like with their faulty abs module bikes from the 2000’s. When that abs faulted, you had zero brakes. none. nada. zip. zero. Your brakes just went away. I had it happen on an alps pass with my wife onboard.

Not every fault needs to be a severity 1 issue. Lose a wheel sensor, ok, but keep driving, disable abs, t/c, stability control, but humans were ok piloting trucks for a long time without all the bells and whistles.

 

[Johnkn]

I didn't write the code for Ford or any other manufactures. On my wheel sensor 'squirrel' failure I had multiple error messages (ABS, collision avoidance, etc) but no limp mode. It did indeed fail in your 'normal mode' above.

I have no clue what failure the OP is truly experiencing, but it appears the code determined that it's significant enough to put the truck into limp mode. Let's see if the upgrade works...

Just me personally, If I have a significant failure that effects things like braking, accident avoidance, etc. I would rather the truck go into limp mode and get me home safely than not going into limp mode and end up wrapped around a tree. Sounds like you would have preferred a limp mode on your bike 20 years ago to get you home safely with limited braking even if slowly.

OP good luck...

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[TurboTJ]

Any particular reason you were in M10 and trying to accelerate hard without letting it downshift? Just curious about the use case...

This is what I like about turbo cars - no need to downshift, just let the boost kick in. But no, no good reason. Just preference.

No, as stated earlier, wheel speed sensors are an intregal part of a number of systems on modern cars, certainly not only Raptors. ABS, traction control, hill decent, etc.etc all rely on input from wheel sensors to operate. A sensor fails, coms to the wheel is lost and the systems report a fault. That's exactly the way they are designed to operate.

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But that doesn’t really hold up. Warning lights are fine but allowing cascading failures from one faulty sensor is BS. For example, when I unplug a wheel speed sensor on my other vehicle, it throws the ABS and traction control lights. The engine continues to operate and I *don’t* get stranded somewhere. This is called fault tolerant - a warning light tells you to fix it and all systems that can continue to function do continue to function.