Fix Your Stuff Community Store

The Ford Explorer and the Mercury Mountaineer were both updated for the 2006 model year on a new frame, produced by Magna International rather than Tower Automotive.

25 Questions View all

Options

RPM fluctuating while driving

Hi, I currently have a 2006 Ford Explorer 4x4 SUV. While I am driving the RPM will fluctuate and the truck will do a weird shimmy. It happens between around 40mph-58ish mph and again between 65-80 mph. I do have a check engine light on. Last time I got it read it was for gas cap and EGR valve. I am getting the EGR fixed but when reading symptoms of a bad EGR, it doesn't match the trucks actions.

What else could it be?

Would completely replacing the EGR fix this issue?

PLEASE tell me it is not the transmission. AHHHH

Answer this question I have this problem too

Is this a good question?

Yes No
Score 0

1 Comment:

Had the same problem with our heavy motorhome. Found the problem was the old fuel pump had lost pressure. Worked fine a low speeds, but would fluctuate when you gave it pedal. New fuel pump & filter, good as new.

The shimmy ? Is it 'full-time-4WD' ? That may induce the shimmy by the front wheels. It requires a ton of horsepower for the rear wheels to cause a shimmy. Don't go 80 until this problem is fixed !

by

Add a comment

1 Answer

Filter by:
Most Helpful Newest Oldest

Options

Is your check engine light flashing or on solid? If its flashing that's a sign that it's misfiring and you probably need new plugs and possibly coils. If it is on solid and not flashing I would get the codes read and see what it is saying and could be many different things.

Was this answer helpful?

Yes No
Score 0
Add a comment

Add your answer

Samantha will be eternally grateful.
View Statistics:

Past 24 Hours: 0

Past 7 Days: 4

Past 30 Days: 22

All Time: 4,637