97-14 Ford E350 Belt Tensioner Replacement How To 4.6 5.4 6.8

Published on February 5, 2020
Duration: 3:18

This guide details the process of replacing a seized belt tensioner arm on a 1997-2014 Ford E350 equipped with a 5.4L V8 engine. It covers identifying the correct replacement part, the removal of old bolts, installation of the new tensioner, and the proper method for routing the serpentine belt. The video emphasizes the importance of getting the correct tensioner based on engine and accessory configurations.

Quick Summary

To replace a seized belt tensioner on a Ford E350 5.4L V8, remove the three 10mm bolts securing it. The new tensioner bolts should be torqued to 18 foot-pounds. To release belt tension, push the tensioner arm towards the driver's side (counter-clockwise) using a half-inch drive tool.

Chapters

  1. 00:00Introduction and Problem
  2. 00:40Identifying the Tensioner Issue
  3. 01:00Removing the Old Tensioner
  4. 01:32Getting the New Tensioner
  5. 01:52Installing the New Tensioner
  6. 02:03Releasing Tension with New Unit
  7. 02:18Serpentine Belt Routing
  8. 02:43Final Belt Installation
  9. 03:13Conclusion

Frequently Asked Questions

What are the common symptoms of a seized belt tensioner on a Ford E350 5.4L V8?

A seized belt tensioner can lead to a broken serpentine belt, as seen in this video where the alternator seized, causing belt failure. The tensioner itself will feel completely stuck and unable to move when you try to relieve tension.

What tools are needed to replace a Ford E350 belt tensioner?

For a 1997-2014 Ford E350 with a 5.4L V8, you will typically need a 10mm socket to remove the mounting bolts, a half-inch drive ratchet or breaker bar to operate the tensioner arm, and a torque wrench to properly tighten the new bolts to 18 foot-pounds.

How do you release tension on the serpentine belt of a Ford E350?

To release tension, you use the half-inch drive square on the tensioner arm. Push the arm towards the driver's side (counter-clockwise rotation) to create slack in the serpentine belt, allowing you to remove or install it.

How tight should the belt tensioner bolts be on a Ford E350?

The mounting bolts for the belt tensioner arm on a Ford E350 5.4L V8 should be torqued to 18 foot-pounds. Overtightening or undertightening can cause issues with the tensioner's function or mounting.

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