Engine stops pulling and acts like it is going to shut off until RPMs drop

2003 FORD EXPEDITION

80,000 MILES • 4.6L • V8 • 2WD • AUTOMATIC

TAMMY L. NIEMAN

MEMBER
6 POSTS

High RPMs, low MPH... Stops pulling and acts like it's going to shut off until RPMs drop. When speedometer hits 105 it acts like it's going to shut off and stops pulling. Speed is actually around 20 to 25 MPH . Changed transmission speed sensor and no change. Been without a ride since December 1, 2020. Desperately need to get this figured out. I am disabled and have no other means of transportation. Also temperature gauge is reading below cold constantly does not change. Have not pulled codes yet. Also just replaced the transmission with a used one.

Mar 26, 2021 at 8:57 PM

ASEMASTER6371

✓Experienced Mechanic
52,796 POSTS

Good morning,

Have you changed the fluid and filter? A clogged filter will cause this issue.

https://www.2carpros.com/articles/automatic-transmission-problems

https://www.2carpros.com/articles/how-to-service-an-automatic-transmission

I would start there and see if there is any debris in the pan.

Roy

Mar 26, 2021 at 9:12 PM

ASEMASTER6371

✓Experienced Mechanic
52,796 POSTS

This could also be an axle shaft failing not providing power to the wheels for the car to move.

I attached guides and the procedure below.

https://www.2carpros.com/articles/how-a-cv-joint-works

https://www.2carpros.com/articles/replace-cv-axle

Roy

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Mar 30, 2021 at 5:43 AM

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