Welding Problems

h301ff

New member
I am looking to make my own sliders (weld on) and was wondering, by welding them to the frame am i going to cause any electrical damage to my Taco? What precautions should i take if any? Disconnect the battery ?
 

soonenough

Explorer
I would think that as long as you have your grounding cable connected pretty close to the area you're welding on, the current shouldn't be flowing through other areas of the frame/etc, as it will take the path of least resistance to ground. Hopefully someone else with more welding experience will chime in to confirm this or tell me I'm an idiot :D

Just to be safe, however, I would probably disconnect the battery, and use welding blankets (if you can) to keep the sparks away from any electrical equipment. Also, make sure you're not welding near any fuel lines.
 

ntsqd

Heretic Car Camper
Welding can produce voltage spikes that are harmful to electronics, even through the ground side. There are surge protectors made just for this sort of work that clamp to both battery terminals.

I've welded on late models and 'gotten away with it', but a friend who owns a 4WD shop will not weld without that protector in place.
 

KG6BWS

Explorer
you shouldnt need to worry about it. i welded my bumpers and the frame reinforcement plates on my 04 and never had a problem.

on the battery, ive heard it both ways and ive done it both ways. ive welded on the truck with the battery both hooked and unhooked. still havent had any problems.
 

goodtimes

Expedition Poseur
on the battery, ive heard it both ways and ive done it both ways. ive welded on the truck with the battery both hooked and unhooked. still havent had any problems.

Yup, same experience here. For the amount of effort it takes to disconnect the battery...ehh..cheap insurance.
 

cruiseroutfit

Well-known member
Disconnect the battery.

Of greater concern, particularly with slider installs is making sure you don't have any electrical, fuel or brake lines running on the inside of the frame or in the case of the Tacoma coming out from the cab that can be damaged. I've know more than one instance that a Tacoma wiring harness had to be severly repaired due to damage from welding sliders to the frame. Scope out your surroundings before you start to nuke.
 

h301ff

New member
there are some are some lines that runs on the opposite side of the frame that i will be welding on, does that make a difference?
 

inked33

Adventurer
there are some are some lines that runs on the opposite side of the frame that i will be welding on, does that make a difference?

if you have your welder set right you should be fine. but to be safe cover the lines the best you can with a welding blanket (leather works fine to) around the area your going to be welding, and between the frame and the lines to insulate them from heat and also in case your welder is set to high and you burn through the frame rail.

good luck with the project and please post pictures when you finish....
 

kerry

Expedition Leader
The shop manual for Fuso FG's directly states that the battery should be disconnected before welding on the frame to avoid damage to electronic components.
 

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