2003 Ford F-250 Super Duty XL 5.4L Relay Box ?
there is a black box in center of dash that buzzes all the time. except when you step on the brake pedal it stoppes buzzing. I have switch the box with known good unit but it isn't the box. Thank you
Summary posted 2/24/2017
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Vehicle Data2003 Ford F-250 Super Duty XL
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Message Closed w/Summary
Vehicle Data
2003 Ford F-250 Super Duty XL
VIN | 1FTNF21L93 |
Engine | 5.4 L / 8 cyl / GAS |
Trans | 6-speed Standard |
Delivery | Fuel Injection |
Affected | Relay Box ? |
Conditions | Buzzing Noise |