Discussion in 'Peterbilt Forum' started by Truckertrucker39, Nov 8, 2017.
Nov 8, 2017#1
Truckertrucker39Bobtail Member
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I have a few brunt spots on my fuse panel and was having headlight trouble.called Peterbuilt and was told I had to buy the panel and wire harness.was just asking can the panel just be changed r do I have to buy the hold thing for this model truck.panel and wire harness was over 3000 dollars
Truckertrucker39,Nov 8, 2017
Truckertrucker39,Nov 8, 2017
#1
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Nov 8, 2017#2
GoodysnapRoad Train Member
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The fuse panel comes with the entire cab harness. Most suffer from moisture issues from water leaks from the windshields or other cab leaks over time. Big job.....
Goodysnap,Nov 8, 2017
Goodysnap,Nov 8, 2017
#2
Nov 8, 2017#3
Cummins_444Medium Load Member
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One of our 04 t800 last year had major corrosion issues. Picked up a good fuse box with the entire wiring harness attached from a salvage yard for $450. Took it to whiteford Kenworth body shop in south bend Indiana. They changed the box and rewired the truck. Took two days at a cost of $1500. Other shops were quoting crazy numbers but the Kenworth body shop was like no big deal. Whiteford thought it would take a day but the salvage yard cut some of the wires when they took it out of the truck so the body shop had a few wires to fix.
Cummins_444,Nov 8, 2017
Cummins_444,Nov 8, 2017
#3
strollinruss and JimmyWells Thank this.
Nov 8, 2017#4
JimmyWellsRoad Train Member
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I had a similar issue and all I did was replace the fuses and clean up the sockets where they plugged into the panel real good. No problems since. Might have good luck in the Garage section of the site for more information.
JimmyWells,Nov 8, 2017
JimmyWells,Nov 8, 2017
#4
Coolbreezin Thanks this.
Nov 9, 2017#5
Luwi67Heavy Load Member
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Same here.
You can remove the terminals from the fuse box by inserting a tiny precision flat blade screwdriver in the front of the fuse box to depress the locking tab of the terminal, then pull the wire (gently) out the back to clean and adjust it well. By adjust I mean get the terminal massaged so it will hold the relay blades tight.
It was a pain, you have to be patient. The fuse box does not have much movement even with all the screws removed to get in there easily with the mass of wires coming out the back. I managed with a lot of patience and a small mechanics mirror because you can't get your head behind there to see what your doing. Totally doable though.Last edited: Nov 9, 2017
Luwi67,Nov 9, 2017
Luwi67,Nov 9, 2017
#5
Oxbow and JimmyWells Thank this.
Nov 9, 2017#6
JimmyWellsRoad Train Member
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Exactly. I did even less actually. I disconnected the batteries, sanded the contacts down until they were nice and shiny again then finally squeezed the contacts closer together to give a better contact for the new fuses. Of course, I don't know what the box looks like on the OP's truck but sounds like something they might want to check out.
JimmyWells,Nov 9, 2017
JimmyWells,Nov 9, 2017
#6
Nov 9, 2017#7
GoodysnapRoad Train Member
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Another trick that can work good to clean things up........
Put some pumice hand cleaner on the fuse or relay spades and run it in and out of the fuse/relay location that is all nastied up. The more pumice the better. The abrasives in the soap will clean the corrosion on the inside of the pin with little effort. Follow up with some electrical contact cleaner and blow dry with a blow gun or air duster. A small amount of Phillips Dielectric paste will keep the corrosion at bay. May not be a permanent fix but can definitely help get things working again.
Goodysnap,Nov 9, 2017
Goodysnap,Nov 9, 2017
#7
joey8686 and JimmyWells Thank this.
Nov 9, 2017#8
BoxCarKiddRoad Train Member
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I have repaired some KW's with a totally melted out fuse or relay connector. They all had unused ones and I just rewired to them. Some of the Petes have room for extra circuit breakers at the bottom. Maybe just install one and wire to that if everything else looks good.
BoxCarKidd,Nov 9, 2017
BoxCarKidd,Nov 9, 2017
#8
joey8686 and Oxbow Thank this.
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