4-wheel drive vacuum actuator tube?

1997 FORD EXPEDITION
200,000 MILES • 5.4L • V8 • 4WD • AUTOMATIC
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PHIL
  • MEMBER
  • 1 POST
One of the tubes to activate the four-wheel-drive broke a number of years ago and four-wheel-drive stopped working. The tube was patched and repaired, and it worked fine for a while. Now it has stopped working again and I am assuming the tube has broken again but I can’t seem to find it, any pointers on where it is? I thought it was on the passenger side near the battery, but I can’t seem to locate it. Your help would be much appreciated!
Feb 25, 2023 at 5:10 AM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,246 POSTS
Hi,

The vacuum actuator is located on the passenger side of the front differential. From there, they run to the vacuum solenoid on the inner fender.

I attached a pic below. Let me know if this helps.

Take care,

Joe

See pic below.
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Feb 25, 2023 at 3:11 PM
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