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Posted: 6/15/2009 10:36:40 AM EST
Need help. My 89 YJ has a strange problem with the fuse block. It keeps melting the plastic on the fuse for my marker lights. When melted, it causes the fuse to blow and i lose my markers.
Voltage to the socket is good, but the fuse fits on real loosely.

Would the fuse being loose cause it to heat up the plastic enough to melt it?
Link Posted: 6/15/2009 11:06:53 AM EST
it could. In things electrical resistance (loose fuse) = HEAT

I would also inspect all the wires, bulbs and plugs for your marker lights

what amperage fuse are you running
Link Posted: 6/15/2009 11:09:16 AM EST
Originally Posted By Krochus:
it could. In things electrical resistance (loose fuse) = HEAT

I would also inspect all the wires, bulbs and plugs for your marker lights

what amperage fuse are you running


20 amp as per the chiltons manual.
Link Posted: 6/15/2009 11:16:52 AM EST
Originally Posted By VacaDuck:
Originally Posted By Krochus:
it could. In things electrical resistance (loose fuse) = HEAT

I would also inspect all the wires, bulbs and plugs for your marker lights

what amperage fuse are you running


20 amp as per the chiltons manual.


In that case if you're melting the fuse before it blows I highly suspect the loose connection to be at fault. You can shim the fuse in tighter with a couple small pieces of wire or you can try to pinch the holders tighter with pliers. But if you break em you're SOL
Link Posted: 6/15/2009 11:28:02 AM EST
Originally Posted By Krochus:
Originally Posted By VacaDuck:
Originally Posted By Krochus:
it could. In things electrical resistance (loose fuse) = HEAT

I would also inspect all the wires, bulbs and plugs for your marker lights

what amperage fuse are you running


20 amp as per the chiltons manual.


In that case if you're melting the fuse before it blows I highly suspect the loose connection to be at fault. You can shim the fuse in tighter with a couple small pieces of wire or you can try to pinch the holders tighter with pliers. But if you break em you're SOL


Taking a closer look at the fuse block, it looks like Jeep is going to make it easy for me. The harness is held to the block with snap on connectors, and the block is helf to the firewall with only two bolts.
I am calling salvage yards now to find a good used block.
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