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Janie Jones Posted on Jun 30, 2018
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How do you fix the fusible link in starting circuit if it is blown?

2 Answers

wyet

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  • Cars & Trucks Master 510 Answers
  • Posted on Jun 30, 2018
wyet
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Fusible links like those in the starter seldom fail because of their high amp rating. Unless there is a terrible short circuit or overload issues like stuck up starter motor. Thats why you need to find out the root cause before attempting final repairs. The safest way to repair a fusible link is to replace it with a new one of same current rating. The poor man's way is to solder a bypass wire on top of the fusible, however if the poor man does not have rich knowledge in electricity( say like estimating the size of wire to be applied) he may get more poorer becoz the wires may smoke and he may burn the car. So be careful with this kind of repairs. ?

Robert Wood

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  • Cars & Trucks Master 6,139 Answers
  • Posted on Jun 30, 2018
Robert Wood
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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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5 Related Answers

Anonymous

  • 373 Answers
  • Posted on Jul 24, 2008

SOURCE: 04 Tahoe blowing fusible link in fuse box for starter

HI...
ON the fuse box cover.
IS there a especification for the funtion of the fuse. or the number of the location of the fuse.
If you can give me, I can try help you. as more I can.

Thank you for use fixya.

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Anonymous

  • 298 Answers
  • Posted on Oct 06, 2008

SOURCE: Fusible Links on 1972 Ford F 250 PU

follow the wire where you think the link may be, and and where the large bulge is, is where the link usually is, now the fuse is not usually non-replaceable, so you can go to a parts house and get an aftermarket fuse link that can easily be installed. take the voltage regulator with you and have it tested to insure it was not damaged.
also check all fuses in the fuse box. and the link on the main wire on the back of the alternator.

jamie

  • 1810 Answers
  • Posted on Jan 03, 2010

SOURCE: my 94 Excel keeps blowing the 20A fusible link

short short short

get the hint

eithor the starter is crapping out or you have a hell of a quinkydink on your hands
starter is likely seizing up slowely

Anonymous

  • 617 Answers
  • Posted on Jan 23, 2010

SOURCE: reversed jumper cables, blown fusible link?

Turn the key to run,truck in park,and jump the starter from the small wire to the large wire on the starter solinoid.If it starts,all is good and your fussible link is probably right.The fusable links are located in the engine compartment,under a cover on the firewall.

Anonymous

  • 1 Answer
  • Posted on Jun 14, 2010

SOURCE: Need help replacing fusible link connector

It doesn't matter because they all carry +12V to the respective circuits. What does matter is which fusible link goes to which circuit (assuming they are different) but if you didn't cut them off, then they should still be connected to the correct circuits.

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0helpful
2answers

We have a 1995 GMC Safari Regel van. When we were driving the lights went out and the motor shut down all at the same time. Van won't start and the lights won't come on. How do we fix it?

Check the fusible links at the battery and at the starter.Just pull on the red wires and if one comes apart easily it's a blown fusible link.
0helpful
1answer

1992 dodge d150 blown fusible link tried jumper wire but still won't fire

You have to fix the problem that blew the fusible link ! (Short circuit )
0helpful
2answers
0helpful
1answer

No power in the swith starter

I'll guess that what you mean is there is no power to the starter switch. It would help, always, to know what you are working on, but in general, most cars have fusible links to protect major circuits. Yours may have blown a fusible link powering the ignition switch, or if you meant the starter solenoid, perhaps the link to it. If you are unfamiliar with these links, google "fusible links".
0helpful
1answer

What can i do to fix it?

You may have blown fuses or fusible links. Is the battery charged up now? Make sure of that before proceeding. Do the headlights work? If no, check Fusible link B, located at the starter solenoid-where it picks up power from the positive battery cable at the starter solenoid.

Does the key switch turn on? Do the warning lights and gauges turn on with the key in on position? If no, check Fusible link A at the starter solenoid. Link A supplies power to the ignition switch.

If a fusible link has blown it can be cut out and replaced. It may look burned-it may have bulges in the wire-it protects circuits just like a fuse, but has somewhat different characteristics than a fuse.

Post back wtih what you have so far. Maybe I can help you more?
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What does fusible shortage affect

A fusible link is a short piece of insulated low-voltage cable within an automotive wiring harness that is designed to protect the harness in applications where a fuse is unsuitable. In an extreme current overload situation, the conductor within the link is melted while the ensuing flame and spark is contained within the link's insulation.

Fusible links are not rated in amps like fuses because each installation is unique and designed to meet specific circuit protection requirements.

The automotive service industry recommends using the same gauge and length as the blown fusible link after the cause of failure is corrected.

Typically, a given harness segment is protected by a fusible link that is four gauge numbers smaller. A 14-gauge wire would be protected by an 18-gauge fusible link. A 6-gauge wire would be protected by a 10-gauge link, and so on. Odd number wire gauge sizes like 19, 15, 13 and 11 are counted when sizing a link. The length of a fusible link should not exceed 9".

In general, a fusible link should never be used to replace an automotive fuse unless authorized by a vehicle factory service bulletin. Likewise, never replace a fusible link with an automotive fuse.

Fusible links are used in most starting circuit applications. For more technical info on fusible links, visit www.sae.org
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Hooked up battery backwards car will trun over but seems like there is no spark

You may have blown out a fusible link. They can be cut out and replaced. Look around the battery for a wire whose insulation looks partially melted, or bubbled out a bit. Fusible links act like fuses and burn out before further damage in the wiring circuits occur. They are located near the battery because they distribute power to different circuits. Today, maxi-fuses in power distribution boxes or centers have largely done away with fusible links.
0helpful
1answer

I put my battery in wrong in my 95 avalon now nothing happens when I trun the key, whats wrong?

It all depends on how lucky you are today. Connecting the battery backwards can destroy some high-dollar stuff. If you are really lucky, you will only have a blown fuse (or fuses). Check both of your main fuse blocks on the left side of the engine compartment,
One of the boxes is called the "Fusible Link" box and the other is called the "Engine Compartment Junction Block" (J/B) (See picture below).
Your main circuits are protected by the 40 Amp and 80 Amp fusible links in the Fusible Link box and the 120 Amp Alternator Fuse in the Junction Block. You will most likely find one or more of these fuses/fusible links blown.
5helpful
2answers

Need help finding fuseible link that goes to starter

CHARGING SYSTEM
The charging system is an integral part of the battery and starter systems. Since all of these systems work together, any diagnosis and testing should be done in conjunction.

The charging system is protected by a 12 gauge fusible link located in the A11 circuit. This fusible link is between the generator and the starter.

The generator ground is provided through a case ground in the generator to its attaching bracket. This generator uses a voltage regulator internal to the Powertrain Control Module (PCM)

When the vehicle is running, battery voltage is applied to the generator field terminal through the A142 circuit. This circuit is the output from the contact side of the Automatic Shut Down (ASD) relay. The ground, or voltage regulated side, of the generator field is controlled by the K20 circuit which connects to cavity 4 of the PCM connector.

When there is current present in the field, and the rotor is turning, the stator in the generator produces a B+ voltage that is supplied to the battery through the A11 and A0 circuits. The A11 circuit is connected to the output terminal of the generator and connects to the engine starter motor battery feed terminal. The A0 circuit is a direct feed line from the battery and connects to the engine starter motor.

Grounding for the system is accomplished at the battery negative terminal. These grounds connect to the engine and body.

HELPFUL INFORMATION
Inspect for a blown fusible link in the A11 circuit between the generator and the starter motor.

other Fusible link goes from the starter to the alternator. Thanks. Keep updated for any more query. You can rate this solution and show your appreciation.
0helpful
1answer

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.
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