Where does the vacuum line on the fuel rail connect at?

2008 FORD F-150
128,000 MILES • 4.6L • V8 • 4WD • AUTOMATIC
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FOGGY413
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  • 2 POSTS
Replacing engine, can't find hose that connects to fuel pressure regulator on the fuel rail.
Dec 5, 2022 at 9:51 AM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,236 POSTS
Hi,

The fuel pressure regulator requires a constant engine vacuum. On this vehicle, it runs directly to the intake manifold.

If you look below, number 1 shows the regulator, and number 5 is the intake manifold.

Check the manifold itself for the hose.

Let me know if this helps.

Take care,

Joe
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Dec 5, 2022 at 1:09 PM
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FOGGY413
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Thank you! This answers my question. You guys are great!
Dec 5, 2022 at 10:04 PM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,236 POSTS
Hi,

You are very welcome. I'm glad it helped.

Take care and feel free to come back anytime in the future.

Joe
Dec 6, 2022 at 7:10 AM
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