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Ron, ASE Certified Technician
Category: Ford
Satisfied Customers: 23821
Experience:  23 years with Ford specializing in drivability and electrical and AC. Ford certs and ASE Certs
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F350 diesel 6.4L duely: The wrench symbol comes on and also

Customer Question

The wrench symbol comes on and also the clean fuel water separator light come on, twice while driving to Orlando from Miami the hot engine light came on but went out a few minutes later. We have drained the fuel water separator several times and still have the warning light. What could be the problem?
Submitted: 2 years ago.
Category: Ford
Expert:  EricFromCT replied 2 years ago.
Hi. How many miles on your 6.4? And when was the last time you replaced the fuel filters?
Customer: replied 2 years ago.
114,000 miles, replaced the filters about 3000 miles ago
Expert:  EricFromCT replied 2 years ago.
If the water in fuel light keeps coming on, the sensor on the housing where you drain the water needs to be checked. It is common for corrosion and slimy "goop" to build up on the sensor. Sometimes sensor replacement will fix that. Other times the entire cover for the housing needs to be replaced.