Question about Cars & Trucks

3 Answers

I have an 86 dodge d100, 318. When the vehicle is running, I pull the lever for the headlights, and the fuseable link from the positive battery post to the alternato blows. I have a 40 amp fuse in the fuseable link. The headlights come on but the battery doesnt charge due to the blown fuse.

Posted by on


3 Answers

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.


    An expert who has achieved Level 3.

  • Cars & Trucks Master
  • 519 Answers

Using a 40 amp fuse instead of a FUSE LINK does not carry enough amps for alternator.--Install a proper FUSE LINK WIRE--CARQUEST carries them premade--If you are not sure how to do this, consult with a GOOD auto-electric shop.--ask around.

Posted on Dec 04, 2014


Replace the battery
or the alternator is producing AC and not DC ie its rectifier has failed

Posted on Dec 04, 2014

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert who has answered 20 questions.


    An expert that has over 10 points.


    An expert whose answer got voted for 2 times.

  • Expert
  • 40 Answers

You have a dead short in head lt wiring. try un plugging one head lt at bulb at a time. if continues to blow fuse inspect wiring in cicuit for any bare wire too frame.

Posted on Dec 04, 2014

6 Suggested Answers

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017

  • 298 Answers

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.

Posted on Oct 06, 2008

  • 1 Answer

SOURCE: 1995 Dodge Neon

the daytime runnling light module is in the dash under cigarette lighter i got my module for 10 bucks at a junk yard

Posted on Nov 02, 2008

  • 6674 Answers

SOURCE: 97 dodge dakoata main fuse keeps blowing 140 amp fuse

Regulator in alternator obviously faulty, have it bench tested & fixed or replace alternator, and cure your problem.

Posted on May 19, 2009

  • 3 Answers

SOURCE: blows fuses


Posted on Aug 22, 2009

  • 13 Answers

SOURCE: Headlights quit working, no low or highbeams, only

Could be a short or sensor in the headlight switch causing it to:

a. just not work
b. get too hot and melt the contacts until they cool

Posted on May 03, 2010

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

1994 Dodge B250 runs battery down overnight put meter between post and battery pulled all fuses no change black wire fuseable link disconnected kills voltage but van wont start then new battery

It would seem as though you have a drain somewhere in the electrical system.

A faulty alternator can cause a battery to drain - sometimes - within minutes. It's the rectifier pack - the diodes in the back of the alternator which burn out.

Charge your battery and when parked up, disconnect the connector at the rear of the alternator. If the vehicle cranks ok the next morning you have to suspect the alternator.

If the problem persists you then obviously have a current drain somewhere else. As you have removed the fuses and it made no difference .. this suggest that the drain could be in the instrument cluster/dashboard.

The best option is to visit an auto electrician. He'll be able to identify the cause of the drain within minutes

Apr 16, 2017 | Dodge Cars & Trucks

1 Answer

If the fuseable link needs replaced where is it located

Fusible links connect to battery power, usually somewhere along the red (positive) battery cable. On some vehicles the links connect to the red cable at the starter post connection, lots of GM cars put the links there. Older Fords had the links connect to the battery cable at the starter relay on the passenger fender. The links have to connect to direct positive battery power somewhere, because they work independent of the key switch being on or off. They get power from the battery and not from the ignition switch. Think of your headlights: you can use them with or without the key. That is because the fusible link (if so equipped) for the headlights gets power right off the battery.

May 13, 2015 | Cars & Trucks

2 Answers

No power to my ignition switch on my 1990 Pace Arrow

idk if the first post posted so im going to try again. trace your wires throu the firewall and see where they go. then pull that relay and test for live wires. if the ciruit is hot and the relay isnt pushing anything. you found your problem. also check headlight relay. may run ignition switch.

Mar 13, 2014 | Cars & Trucks

1 Answer

2001 Dodge Diesel - headlights will not go off unless I disconnect both batteries.Tried unplugging headlight switch - nothing happens - pulled every fuse and relay one at a time from fuse box and still...

Do you have an aftermarket key fob for your vehicle? Often these remote controls are wired into the lights for convenience. This could be the cause of the problem. Some vehicles were also programmed from the factory to have day-time running lights. These are normally controlled from the key position. If so it is possible that you have a bad ignition switch which is not disconnecting the running lights in the off position.

Sep 20, 2013 | 2001 Dodge Ram 2500 Truck

1 Answer

Dodge pick up 1981 doesn't fire

At the positive battery post, you have a cable with a large and small wire. The large wire goes to the starter relay, the small goes to the fuse box and the key switch. The small wire has a fuseable link between the battery and fuse box.
Do you have power on that wire as it goes into the fuse box ? And are the fuses hot with the key on ?

Feb 01, 2013 | Dodge Cars & Trucks

1 Answer

Why have i lost all electrical power to my 1974 dodge tradesman van

With the battery connected, did you check the fuseable link which is the pigtail wire on the positive cable ?
If nothing works, it has to be a bad cable, bad connection, or one of the major fuseable links from the battery to the fuse box.

Aug 04, 2012 | Dodge Cars & Trucks

1 Answer

Where is fuseable link in dodge dokata located

The starter and the positive battery cable have fuseable link wires attached.

Jun 25, 2012 | 1991 Dodge Dakota

3 Answers

I have a 1984 dodge 4x4 1/2 ton. the headlights dont work just the running lights work when i pull the light switch out. i bought new headlights nothing

some times when the dimmer switch on the floor goes bad the headlights will cut out. Try replacing the dimmer switch and the headlights should come back on. My 84 dodge had that exact problem.

Nov 21, 2010 | 1984 Dodge Pickup 4WD

2 Answers

My 1998 Dodge Durango won't turn over and the car is getting no power anywhere, except for the headlights. The engine will crank but won't turn over. Any ideas? Everything worked fine until we had to...

Is the ground for the engine and the battery clean and working properly check at point of connection with test light to see if all grounds are OK and make sure no positive cable are bare and touching metal causing a ground fault and blowing fuse . check wires at battery and going to starter some times wires will burn through and touch other wires or metal causing a direct ground. good luck

Feb 20, 2010 | 1998 Dodge Durango

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

108 people viewed this question

Ask a Question

Usually answered in minutes!

Top Cars & Trucks Experts


Level 3 Expert

76164 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22156 Answers

Randy Ohler

Level 3 Expert

14585 Answers

Are you a Car and Truck Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides