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first off i posted this brake problem in the brake form with no respance. soft pedal will keep going to the floor i have replaced master cyl. & brake booster with no help and no leaks can be found. next question it starts up then shuts off and then its real hard to start when it starts it has blue/gray smoke ans when under load it produces blue/gray/black smoke. last question turn on ac and fuse panel gets hot enough to melt it but does not blow the fuse its ok when only running heat. any help will greatly app. thanks in advance
this is a 1988 f250 diesel
thanks Robbin
Last edited by CoachRobb; Jul 7, 2007 at 07:53 PM.
the brake problem is most likely the master cylinder.
the no start problem is most likely air intrusion into the fuel circuit through the return lines.
and the hot fues box when A/C is used is most likely the power wire suplying the A/C circuit is fraying, and no longer can handle the current load of the blower and A/C combined.
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