By: gbwrench

gbwrench — Fri, 05 Sep 2008 23:07:20 +0000

THE EASY WAY IS TO INSTALL A CURCIT BREAKER IN PLACE OF THE FUSE=TURN LIGHTS ON AT NITE ,AS THE BREAKER BREAKS =LOOK AT EACH LIGHT ONE AT A TIME =THE ONE THAT DONT LIGHT UP IS THE BAD GUY!
BEST TO HAVE JUST THE LIGHTS OUT WITH NO LENS

By: musiclicker

musiclicker — Fri, 05 Sep 2008 19:56:53 +0000

I own a shop, and think this; A fuse is designed to protect a circuit in the event somehow the circuit should make a solid ground. This causes the wire/wires in question to heat up, and since the fuse is the thin link in the circuit, it heats up to the point of burning in two. The best place to find a free wiring diagram is the library in the reference section, in a Chilton’s Repair Manual that covers you vehicle. The most common cause for this is a vehicle that has had a harness added for towing a trailer. One or more of the wires used may have came loose due to not being connected good, and shorts out against the frame or bumper.
I “do not” advise you to do this, but one sure way to find a short is to do this when all else fails. Loosen your (+) positive battery cable to where its easy to get on & off. Remove the cable, and install a thick jumper in the circuit fuse slot that won’t burn it two. Have a friend watch the wires at the back from underneath the vehicle, and briefly touch the (+) positive cable back to the battery for a few seconds, or long enough to cause the wires ot heat up. Where the short is, will be where the hot spot shows up, and this will be your shorted wire, and all you have to do then, is find where its shorting to ground. As I said you shouldn’t try this, and make it your last resort to find it. They do make a tool called a “short finder” that sends a signal through the circuit, and you use the sniffer to locate the short, but the way I suggested is a way to do it without an expensive short finder. You may even make the circuit smoke a little before you get the battery (+) cable back off, but its real important that you do, so have a pair of heavy duty cutters in you pocket in case you can’t get it back off for whatever reason, and you can cut the cable before it causes damage to other circuits. I have found hundreds of shorts this way, but its not safe to do, and you must be prepared for the worst. This is a last ditch effort, and using a short finder is the proper tool to use for this kind of job. Since shorts can be almost impossibe to find sometimes, this method will work, but it must be a controled short, and not allowed to power up but for about 3-4 seconds. You can always find it because the circuit will heat up, and all you have to do is find the wire that is getting hot to the touch.
You should only do this test with the vehicle well away from anything that could burn in case it did get out of hand. It’s kind of like a controled burn the forest service does, but it will work.
Glad to help out, Good luck!!!

By: rick j

rick j — Fri, 05 Sep 2008 14:53:22 +0000

u got a wire that has either lost its coating or has been chopped i would look at the hitch lights that the only thing that would be done to chopped the wires

By: marvin A

marvin A — Tue, 02 Sep 2008 19:08:21 +0000

try the autozone website

Comments on: i have a 1995 chevy truck the tail lights keep blowing fuses?

By: gbwrench

By: musiclicker

By: rick j

By: marvin A