Why does the number 10 fuse burn out immediately after replacing it in a Windstar?

Answer 1

Many similar posts helped me fix the problem for less than $25. First open the hood and remove the air cleaner assembly (unscrew the hose clamp at the throttle body for one side, unclamp in the middle). The "nose" of the brake master cylinder will be visible. Directly under the "nose" is a pressure switch. It may be covered with brake fluid. Squeeze the sides of the electrical connector underneath, and pull it away. clean it with an electrical parts cleaner, or with alcohol (NOT with a soap-based cleaner or with lacquer thinner!). Replace the brake switch with one from the dealer (it's been redesigned, with a short wire connector, it should last the rest of the life of the car): Ford part no. SW-6351 "Brake Repair Kit." Note: you'll need a larger wrench or channel-lock pliers for the new part. Connect the electrical connector wire to the new switch on one end, to the old connector on the other end. Replace the air cleaner (clamp the assembly and don't forget to re-connect the pipe in the back of the air cleaner rubber bellows). Put in a new 15A fuse in slot #10 and you're ready to go. It takes about 25-30 minutes. When I replaced the pressure switch, my cruise control began working for the first time in months; the ABS and Brake warning lights went out, the heater and A/C work fine, and the speedometer is functioning again.

Assuming you are replacing a 10 amp fuse in a circuit that calls for a 10 amp fuse then you have probably got a short in that circuit and the fuse is doing it job by blowing and preventing a possible fire. or the device that the fuse is protecting is drawing more than 10 amps which is also a problem.

I believe we found a solution to Fuse #10 repeatedly blowing (takes out odometer, speedometer, air conditioning, and ABS light comes on). The master brake cylinder has a small leak that over time corrupted the brake pressure switch that sits right below the brake master cylinder. We replaced this part with the redesigned switch (SW-6351 XW7Z-9F924-BA Brake Repair Kit) and so far the fuse has not blown. This part cost about $25.00 through the Ford dealer.

My van was doing the same thing, dealer found leaking fluid from the brake master cylinder in the wiring harness just below the cylinder. New cylinder no more blown fuses

On our 2000 windstar we had the same issue and found that the switch that is mounted on the end of the brake master cylinder was shorting out due to brake fluid leaking from the end of the master cylinder. We got a new switch and made sure to put a good pipe thread sealant on before we installed it and we haven,t had a problem since. Hope this helps.