Dual tanks. everything works except gauge; it reads empty does not move at all when switching tanks.
Aug 19, 2020 at 4:07 AM
Fuel gauge not working properly
1995 FORD F-150
KEN ZIMMERMAN
- MEMBER
- 1 POST
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ASEMASTER6371
- ✓ASE Certified Mechanic
- 52,796 POSTS
Good morning,
I attached a wiring diagram of the system for you. You need to go to the switching valve under the truck on the frame rail and test the yellow wire for voltage with a voltmeter. It should have about 7 volts on that line for the sender units.
https://www.2carpros.com/articles/how-to-check-wiring
https://www.2carpros.com/articles/how-to-use-a-voltmeter
If it does not have power, then go to the dash and check the yellow wire at the dash for power. If it has power, you have a wiring issue. If it does not then the cluster is the issue.
Roy
I attached a wiring diagram of the system for you. You need to go to the switching valve under the truck on the frame rail and test the yellow wire for voltage with a voltmeter. It should have about 7 volts on that line for the sender units.
https://www.2carpros.com/articles/how-to-check-wiring
https://www.2carpros.com/articles/how-to-use-a-voltmeter
If it does not have power, then go to the dash and check the yellow wire at the dash for power. If it has power, you have a wiring issue. If it does not then the cluster is the issue.
Roy
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Professional Diagram for 2CarPros Members
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Click here to log in and view diagram.
Professional Diagram for 2CarPros Members
Click here to log in and view diagram.
Click here to log in and view diagram.
Professional Diagram for 2CarPros Members
Click here to log in and view diagram.
Click here to log in and view diagram.
Professional Diagram for 2CarPros Members
Click here to log in and view diagram.
Click here to log in and view diagram.
Aug 19, 2020 at 4:29 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.