Our tail lights went out, we checked the fuse and it was blown. We replaced it and the fuse blew as soon as we put current though it. We are sure it was the right size fuse. How do we go about finding the problem. Also the dash lights are not functioning, they are on the same circuit, but they havn't worked for a month or so.
Check the fuel filter!
it might be clogged
The tail lights in my sister's '90s Subaru had a similar problem, and nobody could diagnose it, so she just kept a bunch of fuses in the car. (When she replaced a fuse, it would be a while before it blew again -- days, weeks or even months).
In your case, there's a continuous short circuit somewhere. I'd start with the tail lights themselves -- remove the bulb on one side, replace the fuse, then test. If the other bulb lights and the fuse didn't blow, you know the problem is in the wiring to the bulb you removed. If the fuse DID blow, replace the bulb, remove the bulb from the other light, replace the fuse and test again. Examine the wires carefully looking for nicks or bare insulation.
If the fuse fails whichever bulb is installed (or even if no bulbs!), then the short circuit is probably at the fuse box connectors for those wires, or inside the fuse box itself.
I assume you're talking about the tail lights that turn on and off with the headlights. If you're talking about the brake lights, the test procedure is the same, but don't forget about the high-mounted center brake light, if your car has one.
SOURCE: installing spark plugs into a 1991 toyota corolla
pull the 4 plugs out on the top of the engine and get an extinsion and spark plug remover from an automotive shop all it takes is to pull it out and replace it with a new spark plug very easy and it might take 10 min. to do
SOURCE: no brake lights, fuses keep blowing and wont shift out of park
I would look for a wiring short in the trunk at the taillamp area, or, inspect the sockets for the taillamp bulbs for corrosion. In any case, you have a short circuit in the trunk area, also check the wire that comes from the body & goes up the trunk hinge on the driver side; that wire may be chafed, and it may be shorting out. Hope this helps; please get back to me if you need any further assistance.
SOURCE: tyre for 2007 Toyota Corolla
The "Best" size, is what the factory installs originally. The car is engineered to work a specific way. There are many other sizes that will fit, each has it's own reasons for being designed the way they are.
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