Filter your results by entering your Year, Make, Model to ensure you find the parts that fit your vehicle. A fusible link is a common feature in high current electrical systems.
It consists of a wire that is smaller in diameter than the wires it is meant to protect. If the current rises too high, the fusible link will melt, helping to avoid damage to the larger wires, which can handle larger currents. A fusible link is typically used in situations where fuses can't be utilized.
Difficulty starting your vehicle can point to problems with your electrical system. When a fuse link has melted to protect a critical system from damage, it needs to be replaced before you can start your vehicle again. If you suspect a fusible link is the reason for your repair, check out O'Reilly Auto Parts. We carry fusible links to repair most vehicles. Skip to content. Filter By. Categories Fuses Fuses Universal.
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Show More Show Less. Compare Compare. Car Check Vehicle Fit. Load More.Filter your results by entering your Year, Make, Model to ensure you find the parts that fit your vehicle.
The alternator charges the battery and keeps the electrical accessories of the car working while it is running. When the alternator loses capacity or fails, the electrical systems will only stay on until the battery's reserve charge is depleted. Your car might die, but you may be able to restart it with a jump start. If you notice that your headlights dim or your battery won't stay fully charged, it may be time to replace your alternator or other related parts. This might include replacing the voltage regulator if it is separate from the alternator.
Also, check the tension of your belts to make sure the alternator is spinning while the engine runs. We also carry jump starters, car batteries, and starters for most vehicles. Skip to content.Silver dollar city thunderation backwards
Filter By. Gasket 3 Ultima Select Ultima Wilson New Or Remanufactured New Remanufactured Pulley Included No Yes Car Select A Vehicle. Search With Vehicle. Show More Show Less. Compare Compare. Car Check Vehicle Fit. Load More.Has a fusible link problem ever sent you to a mechanic—or rather, have you ever had a problem with your car that the garage later told you was due to this tiny but critical component? You might have wondered what the difference was between a fusible link and a traditional fuse, or how you could avoid issues with this part in the future.
Fortunately, these links are simple to understand and relatively easy to repair. Typically, a fuse burns out when a circuit attempts to transmit too much current, severing the connection before the electrical charge can have any ill effects.
They are placed in-line between delicate harnesses and large sources of electrical current in your car—between the battery and alternator, for example.
These links must transmit high-current electricity, but also protect the rest of the electrical system from dangerous spikes that could cause a fire. This cuts off power while protecting the engine bay from a conflagration, thanks to its fireproof wrapping.The One Wire That Will Save Your Car!
Fusible links can be frustrating to diagnose and repair, because their damage can be impossible to detect with a simple visual inspection. On an older car, the first place to look for these links is under the hood near the battery or along the firewall.
Once you locate it, you can replace the length of wire with a fusible link that matches the gauge of wire called for by the original design.
Photo courtesy of Wikimedia Commons. Know How. Having been bitten by the car bug at a young age, I spent my formative years surrounded by Studebakers at car shows across Quebec and the northeastern United States. Over ten years of racing, restoring, and obsessing over automobiles lead me to balance science writing and automotive journalism full time.
I currently contribute as an editor to several online and print automotive publications, and I also write and consult for the pharmaceutical and medical device industry. Your email address will not be published. Save my name, email, and website in this browser for the next time I comment. Skip to content Has a fusible link problem ever sent you to a mechanic—or rather, have you ever had a problem with your car that the garage later told you was due to this tiny but critical component?
How to Diagnose an Issue Fusible links can be frustrating to diagnose and repair, because their damage can be impossible to detect with a simple visual inspection.
Categories Know How Tags car repairelectricalelectrical fusefusefuse boxfusible linkwiringwiring harness. Related Articles. Benjamin Hunting View All Having been bitten by the car bug at a young age, I spent my formative years surrounded by Studebakers at car shows across Quebec and the northeastern United States.
Leave a Reply Cancel Reply Your email address will not be published. Close Menu Overlay.Our new loaded brake backing plates deliver a complete solution to reduce comebacks and decrease total labor time by simplifying repair.
This fuse holder is ideal for safely adding a fused circuit to a vehicle's electrical system. Designed to use a standard fuse, it features quality insulating material and corrosion-resistant contacts for excellent conductivity.
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Electrical Issues: Fusible Links
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Fuse Holder. Product Description This fuse holder is ideal for safely adding a fused circuit to a vehicle's electrical system. Versatile solution - this fuse holder is suitable for a variety of electrical accessory installations Quality materials - this fuse holder is made of durable plastic and features corrosion-resistant contacts for reliable service Easy to install - no special tools required to install this fuse holder in a variety of locations Professional appearance - part is designed for a clean, professional look when installed.
Technical Support Available Phone : Email : techsupport dormanproducts.This fusible link did its job. It overheated and broke the electrical connection before any critical parts could be damaged.
Fusible links—also spelled fuseable and fusable—serve a similar purpose to a fuse. You can read more about fuses here. Just like a fuse, the link is designed to handle a lower current amp load than the rest of the system so, in the event of a short or overload, the link will be the first failure point. When it fails, it will break the continuity in the rest of the circuit, preventing damage to other components down the line. A fusible link typically costs a couple of bucks and can be replaced in 30 minutes.
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Not so much. But fusible links look much different than fuses and are used for different applications. In an automotive context, fuses are typically used on circuits with a relatively low current draw, measured in amperes, ranging from one amp to 40 amps.
Fusible links are also cheaper and easier to install than a dedicated fuse block, which is why you see them in OE applications. Bigger wires handle more current amp draw. As a general rule, a fusible link is made of wire that is four gauges higher smaller than the rest of the circuit, making it the weakest link in your electrical chain. For example, a fusible link in a gauge wire would be gauge. Remember, a fusible link is going to be four gauges higher smaller than the rest of the circuit.
The link may be at the very end of the harness as well, ending at a ring terminal secured to a solenoid, battery, or motor.
When a fusible link does its job, it will break the circuit continuity, which is akin to cutting the wire. That results in cutting off power to the component. We see this a lot in starting systems.
A fusible link will blow, and folks will incorrectly diagnose a failed starter motor—turn the ignition key…and nothing will happen. If this or something similar happensyou should check for blown fuses in your fuse box first.
If everything looks okay, pop the hood and inspect the wiring harness for melted, scorched, or broken wires. Clip a lead on one end of the circuit and the other to its opposite end. If continuity exists, then your problem is likely elsewhere. Avoid using a simple volt continuity test wand for something like this, as your circuit may not automatically have 12V present. An upstream switch or relay may also prevent an accurate diagnosis.
Many fusible links now come with a crimp connector pre-installed, which simplifies the installation process. Remember to weather-proof your connections—cover your joints with heat shrink tubing or tightly wrap your connections with electrical tape.
Need a good tutorial on electrical wiring? Check this out. Fuseable link wire is nichrome so it will not solder. Fuseable link wire has stopped being sold in most countries now as it is a fire hazard.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.
Typically, a fuse burns out when a circuit attempts to transmit too much current, severing the connection before the electrical charge can have any ill effects.
They are placed in-line between delicate harnesses and large sources of electrical current in your car—between the battery and alternator, for example. These links must transmit high-current electricity, but also protect the rest of the electrical system from dangerous spikes that could cause a fire. This cuts off power while protecting the engine bay from a fire, thanks to its fireproof wrapping. Fusible links can be frustrating to diagnose and repair because their damage can be impossible to detect with a simple visual inspection.
Once located, you can replace it with a fusible link that matches the gauge of wire called for by the original design. Typically, a given harness segment is protected by a fusible link that is four gauge numbers smaller.
For example, a gauge wire would be protected by an gauge fusible link, an 8-gauge wire would be protected by a gauge link, etc.
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Technical Info. January 13, Roadkill Customs Technical Info. Pete Nichols explains stall speed and what that means exactly to help dispel many myths and confusion surrounding stall speed and torque converter function.The page describes how to diagnose and repair fusible links. Fusible links are the electrical system's last line of defense against electrical fires.
They distribute power to the main parts of the electrical system and carry loads far greater than any automotive fuse can handle.
If your vehicle is an or earlier model, then you probably have hypalon wire fusible links. These look just like regular wires, except the insulation is made out of a special, flame-proof material. The easiest way to test them is to tug on them. A blown link will stretch like a rubber band.
The diagram below shows a typical A1 distribution using hypalon wires, based off of configuration. Later models have a power distribution center under the hood, near the battery which contains a bank of MAXI fuses that serve as the fusible links. The underhood relays are also located here. These look like large automotive fuses and can be visually inspected.
This section concentrates on repairing the older hypalon fusible links, since the MAXI fuses can simply be replaced. There are a couple of ways to repair a hypalon fusible link, depending on how the link blew.
It is important to understand why the link blew in the first place before repairing the link. Once the root cause has been addressed, the link may be repaired using one of these methods:.
To aid in diagnosing the root cause, a temporary patch may be made depending where the link blew.
Note that this should not be done as a perminant fix, as the spliced link will not have the correct current rating and the connection will be prone to failure due to corrosion. Fusible link wire may be purchased at most auto parts stores. The correct gauge and length of wire must be used in order to achieve the correct current rating. The following table lists the Chrysler color coding on its hypalon fusible links. Be sure to cut the new link to match the length of the original.1 numeric and 1 special character
If this link is off of the rubber multiple connection insulator, cut the old link flush to the insulator and strip about 1 inch of insulaton off of the A1 feed wire just before the insulator.
Then solder the new link to the wires and wrap the connections with electrical tape and then harness tape "friction tape" at most hardware stores. Rather than replace the old hypalon link with the same material, you have the option of replacing the link with a more modern replacement. There are two options available. The link can either be replaced with a cartridge-type fusible link "Pacific Fuse" or a Maxi fuse instead.
Pacific fuses come in a few different form factors. The easiest version to adapt is the type with copper lugs that have a hole through them. However, since these Pacific fuses are wired in directly, it makes them more cumbersome to replace again later. Maxi fuse holders are available at most auto parts stores.
Since Chrysler switched to Maxi fuses in later models, that is what is recommended. Selecting the correctly-rated fuse is not straight forward, as the hypalon link current capacity is a function of its size and length. They are generally selected to protect a particular size circuit wire and the general rule of thumb is the fusible link gauge should be 4 less than the circuit it's protecting thus a 12 gauge circuit will be protected by a 16 gauge fusible link.
The chart below uses the Maxi fuse ratings of later model and up electrical systems as a guide for Maxi fuse size selection. This is possible because the power distribution did not really change electically on vehicles with the power distribution center, thus the circuit rating could be deduced from this. When replacing the link with the Maxi fuse socket, the procedure is much the same as before.
Then solder a short length of regular copper wire using the size specified in the table above to each end of the blown circuit and wrap the connections with electrical tape and then harness tape "friction tape" at most hardware stores.
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