Q: Vibration - 2001 Ford F-150

asked by on

When the truck is under acceleration there is no vibration what so ever. However, when it is coasting I get a pretty bad vibration. I'm thinking differential or driveshaft. Hopefully it is not the transmission

My car has 203000 miles.
My car has an automatic transmission.

Check the universal joints, their u-bolts, and the nuts holding the driveshaft flange on the differential. Engine torque while accelerating or maintaining speed can keep them in a "balanced" position that changes when the torque is removed. Loose joints or bolts allow them to wobble, setting up a harmonic in the driveshaft.

I would recommend having the car’s shaking symptoms inspected by a certified technician, such as one from YourMechanic, to diagnose this problem, get an accurate assessment of damage and cost estimate for repairs. YourMechanic can dispatch a mobile, professional mechanic to your location for this repair.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!
  1. Home
  2. Questions
  3. Vibration - 2001 Ford F-150

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: How can I get in my trunk through the back seat?

Hello. Accessing the trunk from the back seat will require removal of the seat and part of the side panel. If you have the owners manual, it will likely have more information on this. There are a set of screws...

Q: Acceleration hesitation

Hello, There are a number of things that may cause the car to hesitate when accelerating such as low fuel pressure, a dirty or faulty mass air flow sensor, clogged or dirty fuel injectors, a faulty throttle position sensor or...

Q: Vibration felt through seat every 5 to 10 secs at idle turning air con on stops vibration

As a car ages, things will not be the same as they were when new. There are vibrations inherent in almost every aspect of a vehicle. The fact that we feel so little when sitting in our cars is an...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.