Should I replace a fuse box in my '91 Corolla?

Question

I'm tossing out a lot of words because I know very little. Don't feel obligated to answer all of the question- throw in your two cents where you can. Here we go:

The plastic fuse casing around the blue 100a fuse, in my '91 Corolla is partially melted. Part of the plastic wall between the 100a fuse and the adjacent fuse is melted. Although it looks like I could still physically insert a new fuse, I don't know if I should.

1. Do I need a new fuse box?

2. If I need a new fuse box- Is it purchased as a stand-alone part, or are there other parts connected to the fuse box that must also be replaced?

3. How much does it cost to replace a fuse-box (and accompanying parts)?

4. How difficult is it to replace the fuse box (and accompanying parts if needed? Can I do it or is it best left to a mechanic?

After looking in the manual I'm pretty sure that this is the 'ALT 100 A: Charging System' fuse.

Answer 1

1) Maybe. It really requires an informed inspection. Sometimes a bit of heat is a one-time thing and if no real damage to the conductors and insulation has occurred, "don't fix what ain't broke".
2) It will not come as a stand-alone item. There will either be a harness attached, or a repair kit with connectors to repair the damage that will occur when the old box is cut out.
3) The parts alone will be somewhere between $50.00 and $150.00. No labor. labor is based on the length of time required to replace and test the repair. (The old adage "Time is money". Well most shops charge from $75.00 to $125.00 per hour.
4) Based on the question, I think I would recommend that you refer to a REPUTABLE repair facility for both inspection and advise to these questions, and for the repair.

Good Luck and Merry Christmas

Answer 2

there is no 100 AMP fuse on Corolla. you need to replace that 10 amp fuse before it melt the box. fuse box case come empty.you have to transfer all the fuses and wires to the new one.it cost an average of 100.00 to 150.00 for the part. but labor times take about 3 to 5 hours.it best to leave it to a well train technician

Answer 3

Wow, all that for a 91' Corolla.

I'd try to remove your original one first to see if it can be removed easily.

I doubt you'ld want to pony up for a new one. Try a junkyard, or pick-and-pull for a used one.

They must be replaceable. Do you see a wiring harness with a big plug on it?