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Posted on Apr 20, 2009
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When attempting to start I have a fusible link that smokes and gets hot, I want to replace it but I can't trace the wire down, any suggestions would be appreciated

Have a bad fusible link, when trying to start the vehicle the link smokes, but can't trace where the wire goes to, any help would be appreciated

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joecoolvette

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  • Master 5,660 Answers
  • Posted on Apr 20, 2009
joecoolvette
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Joined: Apr 08, 2009
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Down to the starter.

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How do you fix the fusible link in starting circuit if it is blown?

You would cut out the old link and solder a new piece of the same gauge wire in to properly protect the cable .
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Fusible link from the starter

DO ME A FAVOR CHECK THE BATTERY.
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Ignition system wiring diagram

You burned out a fusible link at the starter motor. The wiring is shorted to ground down there somewhere. Raise the car up and inspect for the damaged wiring and then replace the fusible link. The links are color codes for amperage, most are 30 amperes.
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1988 Dodge Omni won't start

On the positive side of battery Julie is where your fusible links are,you say it's getting hot,I would follow all wires,look for burnt or swollen wires,they go to starter.Here's a wiring diagram,it shows that you have 3 fusible links leaving your positive battery,they need looking at,check all wiring in line with positive battery cable.Look at diagram number 25,enlarge to see.
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93 nissan pick uptruck just quit running no sparkk put new cap rotor and power transister on still no spark,tried portable diagnostic and self

Go to Autozone.com and register your vehicle and get a free wiring diagram and powerbox layout. Although it sounds like you have some info.

Sounds like something dependent on the injector circuit is smoked. A bad relay, a bad fuelpump, find out which connects through the injector loop that is not connected when the injectors are out. You should be able to trace it back.

I mentioned the fuelpump because it coasts until the injectors dump fuel into the engine and runs only shortly until the pressure regulator signals a need to kick in again. Perhaps a fuel pressure regulator?

Would be interested in what you find.
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Where do i trace my orange/blue wire to from alternator? i have new alternator and batteries, but won't charge. will charge if i jump orange/blue to positive post. Any good suggestions? Thanks Phil

The orange/light blue wire is connected to the red (positive) wire from the battery, through a fusible link (or two links depending on engine size) to pin #3 of the voltage regulator at the alternator. The fusible link will be in the harness so you may have to disassemble the harness. The fusible link is probably blown. This was probably caused by the defective alternator/regulator assembly.

According to my diagram, it appears to go from the red batt wire to a gray 12 gauge fusible link, into a brown 18 gauge link, then turns into the orange/light blue wire and to the alternator.

(A fusible link is a piece of wire that acts like a fuse and will burn out, opening the circuit when amperage above its rating. This protects the circuit and lessens the chance of fire).

Good luck, please ask if you need more info.
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Replaced alternater and hooked up battery cables to battery terminals and it started smoking. now there is no power to the vehicle

The fusible link is burnt.

Never wrap the outside of a fusible link with vinyl tape.

All fusible links are located near the battery terminals. Use only replacements of the same electrical capacity as the original. Replacements of a different electrical value will not provide adequate system protection.

The fuse link is a short length of special, Hypalon (high temperature) insulated wire, integral with the engine compartment wiring harness and should not be confused with standard wire. It is several wire gauges smaller than the circuit which it protects. Under no circumstances should a fuse link replacement repair be made using a length of standard wire out from bulk stock or from another wiring harness.



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There are two wires with no power at starter. The one with the fusible link and the wire going to the start. would the fusible link being burnt cause the other wire not to have power? The starter is new we...

a burnt[blown] fusible link must be replaced with a new one ,usually soldered in place, starting circuit is only energised w/switch in start position.trace wires & check connectors.
0helpful
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Replaced alternator now won't start

hello first check your fuse panel inside and under hood test all with test light if all fuses are good trace main power wire from back of alternator for a burnt fusible link i think its just a snapped fuse when installing new alternator the pos wire on back might have touch the bracket grounded snapped the fuse look good at the fuses goodluck
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Wiring problem

Check the fusible links at the starter. One of them may be burned. You mentioned that it shuts down when you turn a corner. Check the wiring going to the ignition switch under the steering column, you may have a loose wire there as well.
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