bschevyk10
Forum Newbie
Posts: 3
Reg: 07-17-12
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07-17-12 11:37 AM - Post#2249116
I have a 1980 k10 silverado that I put a new 350 in and got all the electrical hooked up and went to hook the battery up and was in a hurry to get the truck started and hooked the battery up backwards. I put negative cable on postive bat post and pos cable on neg post. When I did that up on the firewall above the driver side valve cover something smoked. I have looked on here and got an idea that it might be a terminal block? Is that correct? So what I did is got the battery hooked up right and the truck didnt start not even any lights in the dash. What could be the problem? Someone told me to check fusable links and if not that check what smoked on the firewall which i believe might be termianl block. I am not very good with automotive electrical so thought I would get answers from people on here. Hope someone can help me.
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Allan In NE
Contributor
Posts: 897
Reg: 12-27-11
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07-17-12 11:52 AM - Post#2249123
In response to bschevyk10
If it's totally dead, it's probably blew a fuse link.
The 10-12 gauge wire down on the starter solenoid main terminal with the battery cable. Pull on that wire and see if it falls apart.
If so, just wire in a piece of 16 gauge wire and you're good to go.
Allan
| Lifelong GM automatic transmission specialist |
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75gmck25
Contributor
Posts: 345
Loc: Alexandria, VA
Reg: 12-25-07
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07-17-12 04:40 PM - Post#2249208
In response to Allan In NE
Been there, done that, got the T-shirt (for hooking up the battery backwards).
On my truck it partially burned the fusible link that comes off the junction that is above and to the passenger side of the brake booster on the firewall. The wire with the fusible link runs straight down from the junction.
You need to buy a replacement GM 14 gauge fusible link wire, which is sold by most parts stores under the Dorman or Help! brand name.
Bruce
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 Vaughn
"11th Year" Gold Supporting Member
Posts: 13552
Loc: Colorado Springs, CO
Reg: 08-08-04
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07-17-12 06:10 PM - Post#2249234
In response to 75gmck25
That junction block on the firewall is actually a fusible link. There is a strip of metal (the fuse) that connects the two poles of the junction block. You need to replace the metal strip.
If you want to "test" the junction block - use a cable clamp from a pair of jumper cables to jump the two posts. If the junction block fuse is smoked, the clamp will restore power to the inside of the truck. You may even be able to start the truck.
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