80 died on the fwy!

[davidp14]

Yikes

So can someone please bottom line the learning opportunity for the dummies just trying to follow along here?
@SFSurfer
Glad you and the LC are ok

 

[landcrshr]

Yikes

So can someone please bottom line the learning opportunity for the dummies just trying to follow along here?
@SFSurfer
Glad you and the LC are ok

The wire for the O2 sensor shorted to ground which should have blown the EFI fuse, but in this case the weakest link was the connection at the fuse terminal.

I think I'll go check mine right now.

 

[davidp14]

Ok. So make sure I don't have any floppy o2 sensor wires, and give all my fuses a good wiggle?

 

[landcrshr]

Ok. So make sure I don't have any floppy o2 sensor wires, and give all my fuses a good wiggle?

Actually, pull out the fuses and check that the blades aren't oxidized or charred. Also look at the terminal sockets inside the fuse box and check that they're not spread apart.

 

[landcrshr]

I think I'll go check mine right now.

So as I was doing my inspection just now, I was reminded that a while back I had burnished the blades on the headlamp fuses. At one point I was poking around with my voltmeter and noticed an excessive voltage drop across those fuses with the lights on.

 

[Kernal]

Also a good time to replace any kerapp fuses with OEM or known good quality parts (no Wally Marts or parts store fuses).

IIRC maybe 10 years ago one Mud member had his Cowl harness burn up due to a cheapo Chynna fuse that didn't pop when it should have.

 

[ChaseTruck]

Or resistance causing a heat build up from corrosion between the male fuse blade and the female spade/wire in the fuse box. Correct me if i am wrong, but i seen to remember there have been more than a few members who have had problems with corrosion in the wires, and on some of the connectors in their engine compartment fuse box.

We've had such an issue recently on the LX. Fuse not blown, but plastic of the fuse melted, and fuse block plastic at one side of that fuse melted. Checking downstream didn't reveal an electrical fault. Proceeding under the assumption that it was an ill-fitting fuse now that everything is back together. Corrosion - well, it's an AZ truck. Source of fuse and time of use not quite clear at the moment. Maybe I need to get through the stash of fuses with a micrometer.

 

[davidp14]

Advice for quality fuses?

I wasn't aware Mr T made blade type fuses

 

[gummycarbs]

Advice for quality fuses?

Littelfuse and Bussmann are both good. I think Bussmann fuses are made in Japan.