Ford Tech Tip: Clunk or Bump When Starting from a Stop – UnderhoodService

Main Navigation

Advertisement
Social Connect
Resources
Our Brand Family
Underhood Service Logo
Technical resources to help diagnose and repair engine-related service issues.
Post

Ford Tech Tip: Clunk or Bump When Starting from a Stop

Some 1997-2006 Ford E-Series, 1999-2006 F-Super Duty, 1997-2003 F-150 and 2004 F-150 Heritage 4x2 vehicles may exhibit a driveline clunk or bump that occurs as the vehicle starts to move forward following a stop. This condition may be caused by the slip yoke not sliding smoothly on the output shaft splines.

Underhood Service Staff Writers
By Underhood Service Staff Writers
Published:

Some 1997-2006 Ford E-Series, 1999-2006 F-Super Duty, 1997-2003 F-150 and 2004 F-150 Heritage 4×2 vehicles may exhibit a driveline clunk or bump that occurs as the vehicle starts to move forward following a stop. This condition may be caused by the slip yoke not sliding smoothly on the output shaft splines.

Related Articles

Action:
Lubricate the slip yoke with Motorcraft PTFE lubricant. Refer to the following service procedure.

Service Procedure:
1. Verify the condition.
2. Remove the driveshaft per Workshop Manual Section 205-01. Be sure to index mark the driveshaft during removal to maintain alignment during reinstallation.
3. Lubricate the slip yoke with 7-13 grams (0.25 – 0.46 oz.) of Motorcraft PTFE Lubricant.
4. Re-index and reinstall the driveshaft per Workshop Manual.
5. Verify the repair.

Courtesy of Mitchell 1.

For more information on Mitchell 1 products and services, automotive professionals can log onto the company’s website at www.mitchell1.com.

You May Also Like

Engine

It’s Got Spark!

Why can’t you trust some spark tests?

Andrew Markel
By Andrew Markel
Andrew Markel is the director of content for Underhood Service magazine. He has been with Babcox Media for 20 years. He is a technician and former service writer and holds several automotive certifications from ASE and ­aftermarket manufacturers.
Published:

You have probably seen some reality TV shows where the “builder” will pull a spark plug wire to confirm they have spark. This is one of the most misleading tests for the ignition system. If the spark plug produces a spark, the spark is at 14.6 psi (normal air pressure at sea level), not 170 psi or more inside the cylinder during the top of the power stroke.

Read Full Article

More Posts
Do Technicians Need Tips?

Asking for a tip would not go over well with your future customers.

By Andrew Markel
What Constitutes A Quality Wheel Hub Assembly?

Discover key factors to consider for quality hub assemblies and how they impact vehicle performance and longevity.

By Doug Kaufman
Needs Come First When Choosing Aftermarket Or OE

It’s essential to understand the differing needs of manufacturers, shops, technicians, and consumers.

By Doug Kaufman
Caring For AGM And Flooded Car Batteries

Faulty battery cables, if loose, corroded, or damaged, can lead to power drainage.

By Underhood Service Staff Writers

Other Posts

Jump Starting an EV

If an EV with a full battery won’t start, here’s how you can get it up and running.

By Brian Sexton
Ford 3.5L EcoBoost Turbocharger Oil Leaks

Ford has revised the service information for the inspection and pinpoint tests of the turbocharger and oil lines.

By Underhood Service Staff Writers
BP Pulse Opens Gigahub in Houston

It is the first BP Pulse-branded Gigahub in the US and opened to the public on April 2.

By Underhood Service Staff Writers
Service Opportunities Still Exist With EVs

Like all ICE vehicles, you need the correct tools, parts and to follow the proper service procedures when servicing EVs. This video is sponsored by The Group Training Academy.

By Doug Kaufman