96 Grand Am Firewall

[Patthehat033 10+ year member]

I want to run a 4 gauge power wire through the firewall on my 96 Grand Am SE V6, and I have searched the engine bay but cannot find a logical place to run the wire.

I have not found any grommets that I can really use to do this. Nor have I found any great places to drill through.

Do you guys have any ideas?

Also I forgot to mention this is only temporary I want to run 1-2 runs of 1/0 gauge in about a month. So I will need a good place to go through the firewall.

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[knotdrummer88 10+ year member]

you could go underneath the vehicle down the inside of the frame rail, then just drill a hole in the back

 

[Patthehat033 10+ year member]

I ran it through the ignition harness huge grommet at the back left corner of the engine bay. It was sitting behind the glove box, worked fabulous.

 

[goingdef 10+ year member]

you can also go low on the right hand corner of the firewall(usually single layer and no wiring to worry about) and use a step bit to achieve the size hole you want.

 

[Haunz 10+ year member]

I went top right hand corner of the firewall on the grand ams I owned & used a hole saw to fit 2 runs of 2/0.. seemed to look like the best place to me.. look for gromets at your local automotive stores..