D James

well its that time of year again and I would like to finaly fix that rear defroster that likes to kick off after a minute. I did a search on it and found most guys replace the circuit breaker with a 30 amp fuse. Is it in the fuse panel under the steering wheel in the dashboard? what exactly do I do to replace this, Do i just buy one of those double sided wires with the fuse in the middle and then soldier it to the old connections? Also how exactly does this work, since I'm replacing one 30 amp circuitbreaker for a 30 amp fuse, isn't it going to take he same amount of heat and current? Anybody have any pictures? thanks

D James

Well I just went out there and looked over the fusebox and it looks like a regular fuse will fit in the place of the big black silver 30 amp one which I assume is the circuit breaker. Looks like it will be easier than I thought

moparman

Yes, the fuse is like the other ones. It should work just fine.

shoebox

That's why the advice is to "replace circuit breaker with a fuse".

D James

thanks, it just seemed to easy to be true. By the way it works like a charm, it goes for the normal ten minutes or so. I'm still confussed why the fuse works better? does the circuitbreaker get hotter then switch, whereas the fuse will take more heat?

shoebox

The fuse is apparently a little more robust. Keeping the same amperage still keeps the circuit protected. Just keep an eye on the fuse. It may tend to look like it gets a bit overheated. You might keep an extra in the glove box.

silver97Z

Do you have any pictures or anything? Where is the circuitbreaker located?

Thanks!

moparman

It's in the fuse box on the end of the dash by the driver's door.

Z28SORR

Although fuses and circuit breakers serve the same function, there are many different design criteria. Either can be designed as "fast blow" or "slow blow". This term refers to the time and amplitude of over amperage it takes to break the circuit.
For instance you could design a fuse or breaker to pop if it "see's" 1amp for .5ms over the 30 amp normal, or it could be designed not to pop until it "see's" 2amp for .5 sec.

D James

Cool thanks for the explaination guys, makes perfect sense.

silver97Z

Got it...took 2 minutes to replace and works like a charm! Thanks!