electrical problem please help!!!

tmoll5858 · #1 03-03-2006, 10:21 PM

i keep blowing the fuse on my 92 blazer thats for the dash lights and my taillights. ive searched for wire problems and had a mechanic look at it too but nothing was found. does anyone have a clue or have had this problem?

old_master · #2 03-03-2006, 10:38 PM

Are there any aftermarket accessories on the vehicle? Radio, CD player, trailer hitch wiring, etc etc. If so, start looking in those areas for shorted or corroded wires or connectors.

2kTrailBlazer · #3 03-04-2006, 12:24 AM

THIS IS NOT A PERMANENT FIX!
try putting a bigger (higher amp) fuse in for the time being...this does not FIX the problem but hides it until you figure it out. Lights that should be lit up that are not is a ticket...elctrical shit is a pain in the ass... can take you a while...just my thought

blazee · #4 03-04-2006, 12:41 AM

Quote:

Originally Posted by 2kTrailBlazer

THIS IS NOT A PERMANENT FIX!
try putting a bigger (higher amp) fuse in for the time being...this does not FIX the problem but hides it until you figure it out. Lights that should be lit up that are not is a ticket...elctrical shit is a pain in the ass... can take you a while...just my thought

That's a good idea. When he figures out where the fire started, he'll know what the problem was....

Normally, the problem can be traced to the trailer wiring when the taillight fuse keeps blowing. I'd start there and then move to some of the other stuff that old master was talking about.

BlazerLT · #5 03-04-2006, 01:10 AM

Check the trailer wiring harness and anything going back to the taillights.

Take the taillights out of the right rear tailight assembly and if the fuse does not blow, you have found where the problem is.

If it still blows it is the left assembly causing it.

If it is neither, then check your trailer wiring harness.

This will start the narrowing down process.

EDIT: Do NOT put a larger fuse in the place of the one blowing. That is just ridiculous even if it is a "temporary fix"

Southern Comfort · #6 03-04-2006, 06:06 AM

Like Old Master, Blazee,and Blazerlt said, Do not put a higher amperage fuse in your truck. The wires and connectors in your truck are rated for a specific amount of current( amperage), if you replace the fuse with a higher amperage fuse, the wires and connectore will get hot and the insulation will melt. That will just add more problems to your truck. If you have a multimeter and know how to use it, I suggest putting the black lead to ground and the red lead to both sides of the fuse and see if it reads a dead short, If you have a continuity check on your meter, it will beep, if not, your reading will read zero or close to that. If you don't know how t use a meter, then I suggest you find someone who knows how.
SC

sreve · #7 03-07-2006, 06:41 PM

you might want to pull the carpet back on the drivers side. wires for the rear lights ands the fuel pump run right under where the driver puts there feet.

Rick Norwood · #8 03-07-2006, 08:46 PM

Quote:

Originally Posted by 2kTrailBlazer

THIS IS NOT A PERMANENT FIX!
try putting a bigger (higher amp) fuse in for the time being...this does not FIX the problem but hides it until you figure it out. Lights that should be lit up that are not is a ticket...elctrical shit is a pain in the ass... can take you a while...just my thought

This is the most unheard of thing I've ever heard of.

Don't kid your self, 12 volts DC CAN cause a fire.

I've seen burned out bulbs short out and blow fuses, not to mention frayed wires, or corroded terminals that got too hot and melted the insulation on the connectors.

If after you've traced all of the wires, harnesses, and checked all of the bulbs, looked and/or smelled for smoke or burning insulation to the best of your ability and can't find anything, take the truck in and get some professional help.

old_master · #9 03-07-2006, 09:12 PM

Might as well wait til the fourth of July, get out the lawn chairs and a six pack, stick a 10ga jumper wire in there, sit back and enjoy the fireworks! After the fireworks, the kids can run around with sparklers and you can look for what the problem may have been.

BlazinMlew · #10 03-07-2006, 11:18 PM

Quote:

Originally Posted by 2kTrailBlazer

THIS IS NOT A PERMANENT FIX!
try putting a bigger (higher amp) fuse in for the time being...this does not FIX the problem but hides it until you figure it out. Lights that should be lit up that are not is a ticket...elctrical shit is a pain in the ass... can take you a while...just my thought

HAHA

blazee · #11 03-07-2006, 11:29 PM

Alright guys, the point has been made. Let's ease up on him a little.

Rmbodie · #12 03-09-2006, 05:22 AM

THIS HAPPENED TO ME 2 . With that said , I put a bigger fuse in . JUST KIDDING . I GOT MY ELECTRONICS SCHOOLING THRU D MAIL .
The real stuff , My trailer had a short and after fixing it I still blew the fuse . Long story short , The contacts inside the older blazers light switch has a white dielectric grease in them . It was arcing thru carbon trails inside the switch popping the fuse . After taking the switch apart and cleaning the burned grease out and polishing the contact surfaces and reaplying grease ,mine works again . just my thoughts . Rob

2kTrailBlazer · #13 03-10-2006, 09:41 AM

alright guys i made an ignorant post...sorry tmoll... I must admit i probably shouldnt have posted considering i do not have much electrical expierence. At first thought it made some sense. Reading all the other posts i now know why someone would not want a bigger fuse.

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