RX7Club.com - Mazda RX7 Forum

RX7Club.com - Mazda RX7 Forum (https://www.rx7club.com/)
-   General Rotary Tech Support (https://www.rx7club.com/general-rotary-tech-support-11/)
-   -   Anyone know how to find an electrical short? (https://www.rx7club.com/general-rotary-tech-support-11/anyone-know-how-find-electrical-short-932548/)

Rotaryfreak702 11-29-10 03:14 PM

Anyone know how to find an electrical short?
 
ok so my '84 Se keeps blowing the "engine" fuse whenever the key is in the on position.

it started when i hit a bump on the freeway and it blew the fuse.

so does anyone know any ways i could find it or anything.

any help would be appreciated.

dr50376272 11-29-10 05:04 PM

i know it sounds real dumb, but look through all your wiring, look at any location that looks dark. it means to take off the black tape that covers your wires, but always first check your fuses, maybe under your dash youll have to remove some parts. not sure on the 84 Se. check all relays too. you may also want to try disconnecting the battery, leaving it for a few hours, then coming back. that sounds stupid, but it worked for me one time!

t-von 12-01-10 07:58 PM

I can't remember about the 1st gens but the Fd have a harness that runs over both front tires. In these vehicles if you bottom out too much, the tire will rub through the lining and damage the harness. I would start checking your wheel wells and any harness near frame joints. Also, download a schematic and check everything in that circuit.

tasty danish 12-02-10 01:51 AM

Bump on the freeway leading to blown fuse leads me to think it's not the wires themselves. Did the fuse blow immediately after the bump?

Are you sure it was a bump or pothole or something that caused the fuse to blow and not the other way around? (that is to say, maybe the fuse blew which caused the car to die and buck around/act funny).

IF a bump caused the blow, my first guess would be a battery that is not properly held down touching random metal shit, or random metal shit, jumping around and hitting a hot contact on your alternator/starter circuit.


All times are GMT -5. The time now is 03:08 PM.


© 2024 MH Sub I, LLC dba Internet Brands