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Wire from cab to inside engine compartment

Wire from cab to inside engine compartment

Postby snowfighter [OP] » Sep 14 2011, 5:42pm

Want to run 1/4 inch wire harness from cab under dash into engine compartment anyone know of a easy access route?
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Re: Wire from cab to inside engine compartment

Postby swandc » Sep 14 2011, 7:37pm

If you don't mind drilling a hole, I went through behind the electrical box that is under the dash on the drivers side. Take the cover off, push two tabs in at the top to release the block. Then lift/pull it out of the hanger slots in the bottom. You'll see a round hole already cut in the plastic behind there. It'll come out just under and to the right of master cylinder in the engine compartment as you're looking from the front. Will give you easy access to BCM right there too. Hope this makes sense, I've also got some pics if you'd like or think it would help. It'd have to wait till I get home from work about 7p.m. (east coast) tonight. I like that area, out of the way and would never know it was there just looking in.
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Re: Wire from cab to inside engine compartment

Postby snowfighter [OP] » Sep 14 2011, 10:17pm

Would like pictures like they say there worth a thousand words. You must be talking about the fuse box inside the dash which is accessed between the door and the end of the dash?
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Firing on 1 cylinder [L1]
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Re: Wire from cab to inside engine compartment

Postby swandc » Sep 14 2011, 10:24pm

Nope, it's the one lower near the floor against the firewall. It's the mid bussed electrical center (MBEC) Discovered I did send myself the pics to work. Hope this helps ya out.
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Re: Wire from cab to inside engine compartment

Postby snowfighter [OP] » Sep 14 2011, 10:41pm

Thanks for the pictures was wondering what that box was. So you just drilled through the plastic hole in the picture?
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Re: Wire from cab to inside engine compartment

Postby swandc » Sep 14 2011, 10:52pm

Yup, that gray color with the black strands of what must be glue is the firewall. I used step drill bits to make it easier to drill. It'll be a tight fit with a regular drill but obviously can be done since this monkey was able to! LOL If you have an angle drill use that, if not it won't be a big deal. The picture doesn't show the cover on it but it's the big black one under there with the electrical symbol on it.
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Smile...it's the second best thing you can do with your lips!
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Re: Wire from cab to inside engine compartment

Postby snowfighter [OP] » Sep 14 2011, 11:25pm

Thanks I know the box you are taking about.
Original Poster
snowfighter
Firing on 1 cylinder [L1]
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Posts: 13
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Joined: Aug 04 2011, 6:26pm
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Re: Wire from cab to inside engine compartment

Postby LBZDMAX » Sep 15 2011, 12:47am

Should be a hole with a grommet in it under your carpet on the driver side. Crawl under your truck and you'll see it. Used it a few times on my old 07.
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Re: Wire from cab to inside engine compartment

Postby bbrown » Sep 16 2011, 8:21pm

Like swandc, I also used that same spot to run a #4 stereo power wire through a PVC threaded grommet. I don't rocommend just poking a wire through a hole...eventually it will short-out when the insulation rubs off (you don't want to see pictures of that).
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Re: Wire from cab to inside engine compartment

Postby swandc » Sep 17 2011, 2:51am

Yeah, I didn't have any grommets at the time, just left a little extra cable so it wasn't tight against it. Work has kinda taken over my life and not too much time. Hope to fix that this week, since I'll have a 4 day weekend this week. Gotta love weekend duty and 11 days worth of 12 hour days. Wish I got overtime for all this!
2007 Silver Birch Metallic Silverado LT Crew Cab 4.8 4X2

Smile...it's the second best thing you can do with your lips!
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Extra Info: 1500 LT 4.8L V8 4X2
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