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Wayne Crawford
Wayne Crawford, Shop Owner
Category: Ford
Satisfied Customers: 4011
Experience:  General Repair Shop Owner
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2006 expedition 5.4 won't rev or run/drive past 3000rpm.

Customer Question

2006 expedition 5.4 won't rev or run/drive past 3000rpm. changed fuel filter and also fuel regulator on rail and complete throttle body. also removed and inspected Cats
JA: Is the fuel filter an external one, or is it inside the tank?
Customer: out
JA: Are you fixing your Expedition yourself? What have you tried so far?
Customer: yes I just told you all I replaced. I have the exact truck beside it changing parts out
JA: Anything else you want the mechanic to know before I connect you?
Customer: no
Submitted: 6 months ago.
Category: Ford
Expert:  Wayne Crawford replied 6 months ago.

Hello. My name is ***** ***** I will be helping you today.

So when it gets to 3000 RPM it dies?

Customer: replied 6 months ago.
no like a rev limiter
Customer: replied 6 months ago.
just bounces a little and don't go past
Expert:  Wayne Crawford replied 6 months ago.

Does it show the correct gear on the dash?

Customer: replied 6 months ago.
does same in park and drive
Expert:  Wayne Crawford replied 6 months ago.

Have you checked it for trouble codes?

Customer: replied 6 months ago.
nothing I own a autel nothing is showing
Expert:  Wayne Crawford replied 6 months ago.

Im not familiar with that brand. Does it do live data or just a code reader? And does it do ABS codes and data?

Customer: replied 6 months ago.
every thing
Expert:  Wayne Crawford replied 6 months ago.

Have you actually checked in the ABS menu for codes? Usually they are stored in their own menu.. not on the main code screen.

Customer: replied 6 months ago.
Okay I can check that. I haven't done that
Expert:  Wayne Crawford replied 6 months ago.

Check that and also if you can take it for a drive drive it while monitoring the wheel speeds and see if any of the wheels are showing a different speed than the rest

Customer: replied 6 months ago.
Okay thank you for the pointers and i'll go do it now
Expert:  Wayne Crawford replied 6 months ago.

OK. Let me know what you come up with and we will move on.

Customer: replied 6 months ago.
No ABS codes
Expert:  Wayne Crawford replied 6 months ago.

Have you checked the wheel speed sensors yet?

Customer: replied 6 months ago.
they all read 0 have no drove down road and checked. would they cause this while in park and neutral?
Expert:  Wayne Crawford replied 6 months ago.

It hitting a revlimiter while in park or neutral is exactly what it is supposed to do so yes it would cause it.

Customer: replied 6 months ago.
not drove
Customer: replied 6 months ago.
Okay putting breather on and hitting the road and see.
Expert:  Wayne Crawford replied 6 months ago.

OK. Let me know what you find.

Customer: replied 6 months ago.
I'm guessing just unplugging won't work huh?
Expert:  Wayne Crawford replied 6 months ago.

No. You need to drive it while monitoring the speeds and see if they all read about the same.

Customer: replied 6 months ago.
Okay thanks
Expert:  Wayne Crawford replied 6 months ago.

No problem. I will be standing by. Just let me know what you find.

Customer: replied 6 months ago.
well it drives fine now so it was something on what I changed but i'm guessing a rev protection in park cause it'll hit 5k easy now on the road but I have't drove it since I replace the cat. all speed sensors was good
Expert:  Wayne Crawford replied 6 months ago.

OK. Well start swapping parts back one by one till you find it. Otherwise there isnt much else we can do. At least you know things to look for if it pops back up. Let me know if you need anything further and please be sure to rate my service so I get credit for helping you today. Thanks