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Mercury
Grand Marquis
Fuel System
Fuel system?
1998 MERCURY GRAND MARQUIS
209,000 MILES • 4.6L • V8 • 2WD • AUTOMATIC
SERGIO MACIAS
MEMBER
1 POST
Does anybody know what this is called?
Image (Click to enlarge)
Aug 9, 2024 at 12:27 PM
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STRAILER
✓
Experienced Mechanic
55,579 POSTS
That is called a "Schrader valve" which is used to help test the fuel pump pressure.
This guide can help see what it is used for:
https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator
Let us know if you need anything else.
Aug 10, 2024 at 3:58 AM
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