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From what I understand this is not a issue for the diesel models. The gasser have constant voltage on this circuit. the diesel its an accessory power item so it can't burn down when key is not on. I don't think the recall applied to diesel. Does that mean it not worth checking for brake fluid? no, but we are not part of the recall.
i have replaced mine twice, its still the same sensor that is junk and could potentially catch fire but tj is right it wont do it key off as our circuits are designed different and ford does not include any diesel in the recall because of that, it will however still **** fluid out and cause problems give it time, a diesel will burn and someone will sue then we'll all get letters in the mail for the recall
The diesel's have power on the switch all the time. The difference is that the diesel doesn't pull a lot of current through the switch. On a gasser, the power for the clutch that engages the cruse control servo goes through the switch. Hitting the brakes with CC on interrupts the several amps the clutch takes. That interrupt of current chars the contacts if brake fluid is on it. It can start a slow sizzle of current through the carbon of the burnt brake fluid that later leads to a fire. On a diesel the switch is an input to the computer. The current draws so little current that there is no chance of a fire.
On both the switch is fused at 15A. 15A through a high impedance short is plenty to start a fire. A smaller fuse for just the switch is Ford's solution.
Can someone provide some part numbers for the correct switch. I think some rumors are going around that are saying the first switch they used to fix the problem also was faulty thus the recall is starting again. I don't believe it.
The diesel's have power on the switch all the time. The difference is that the diesel doesn't pull a lot of current through the switch. On a gasser, the power for the clutch that engages the cruse control servo goes through the switch. Hitting the brakes with CC on interrupts the several amps the clutch takes. That interrupt of current chars the contacts if brake fluid is on it. It can start a slow sizzle of current through the carbon of the burnt brake fluid that later leads to a fire. On a diesel the switch is an input to the computer. The current draws so little current that there is no chance of a fire.
On both the switch is fused at 15A. 15A through a high impedance short is plenty to start a fire. A smaller fuse for just the switch is Ford's solution.
That's about the best desciption I've ever heard on that switch, you sound like you've delt with this before. Anyway thanks for the explaination and welcome to FTE.
i've had the warranty thing done, they just plug in an inline fuse. the idiot's didn't replace the switch that was full of fluid, so i bought the updated switch online. it has a different connector but it came with a pigtail. it's very common and the switch was $20 to my door.
Last edited by 96P_Stroke4x4; Aug 6, 2007 at 08:55 PM.
Actually FORD does NOT replace the switch...
Instead they put in an additional piece of Fused wire...
My 99 EXPY has been done that way...
And so has a friends F250...
I ask which is the right way to fix it, the fused wire from Ford or the switch w/pigtail from Ford? Do they inspect, no fluid, fused wire and if they find fluid, put in switch w/pigtail? Thanks.