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What is jumping? 200

posted by  someone claiming to be maxille on  Tue Dec 30 06:12 CST 2003 [RELATED]

88 240 DL

Sorry, guys (& gals), basic question: what does it mean to jump fuses in the car? Naturally, I've booster-jumped a car before to start it, but not individual parts in the car. How does it work?

Thanks








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    What is jumping? 200

    posted by  Don Foster on  Tue Dec 30 06:36 CST 2003
    Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
    last visit: Sun Oct 5 11:53 CST 2014
    [RELATED]

    Jumping a fuse means to bridge across it with a piece of wire (often called a "jumper lead" or "jumper wire" or "clip lead"). This creates an electrical path (current path) in parallel with the normal electrical path created by the fuse. If the fuse is bad, then the circuit will again be powered (but watch for sparks, smoke, and fire!!).

    If you jump two fuses (such as jumping fuse 5 to fuse 7 or fuse 4 to fuse 6 to run the fuel pump), you create a circuit between these two fuses -- by using a jumper lead.

    -------------

    Years ago, when the fuel pump relay in my old '82 failed, I JUMPED fuse 5 to 7 using a paper clip and drove 25 miles home. Then I resoldered the relay and drove the car another 10 years 'til it died of advanced, chronic rust.
    --
    Don Foster (near Cape Cod, MA)







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