Firewall pass-through for wiring

[cclarke802]

Anyone have any experience with the best place to pass wires through the firewall in an 03 tj with an automatic transmission? Need to run some wiring for switches, and it has to be large enough for a cb antennae wire to go through.

 

[crackedcornish]

just look for an existing factory rubber plug to use as a grommet or make a hole and fit one of these

 

[Chris]

The pre-existing hole is just above and to the right of the driver's side accelerator pedal, but it only exists if you have a manual transmission. That hole is otherwise used for the automatic transmission's shifter cable.

If you have an automatic, an alternative hole is where the clutch hydraulic mechanism would pass its clutch rod through, on the firewall next to the power brake booster, on the driver's side of the brake booster. You can drill through the small plate on the fire wall that is used to plug that hole.

 

[Jorge Bolivar]

My 04 has a 1" hole with one of those factory rubber plug bellow the main wirring entry point. Looking from the inside, rigth at the edge of the carpet.

 

[cclarke802]

The pre-existing hole is just above and to the right of the driver's side accelerator pedal, but it only exists if you have a manual transmission. That hole is otherwise used for the automatic transmission's shifter cable.

If you have an automatic, an alternative hole is where the clutch hydraulic mechanism would pass its clutch rod through, on the firewall next to the power brake booster, on the driver's side of the brake booster. You can drill through the small plate on the fire wall that is used to plug that hole.

Thank you that s what I ended up doing. Had to make a couple of the wire runs longer but other than that was a great driver side access point

 

[Chris]

Thank you that s what I ended up doing. Had to make a couple of the wire runs longer but other than that was a great driver side access point

Glad you got it all figured out!

 

[cclarke802]

Thanks added a bigger light bar but it has a purpose. We sometimes shoot at night at a friends property but at the distance I'm comfortable parking the tj the old lights didn't quite have the punch we needed so I went big with the last light I'll ever add lol

 

[Chris]

Ahhh, I could see how that light bar would come in handy when shooting at night!

 

[Earwood5150]

The pre-existing hole is just above and to the right of the driver's side accelerator pedal, but it only exists if you have a manual transmission. That hole is otherwise used for the automatic transmission's shifter cable.

If you have an automatic, an alternative hole is where the clutch hydraulic mechanism would pass its clutch rod through, on the firewall next to the power brake booster, on the driver's side of the brake booster. You can drill through the small plate on the fire wall that is used to plug that hole.

Is this the spot you are talking about? Thanks!

 

[Chris]

Is this the spot you are talking about? Thanks!View attachment 30583

I believe that's it, but I don't have a manual, so I can't be 100% sure!

 

[Earwood5150]

I believe that's it, but I don't have a manual, so I can't be 100% sure!

Thank you sir.

 

[Jerry Bransford]

Is this the spot you are talking about? Thanks!View attachment 30583

Yes that is it.

 

[KCsTJ]

What about the passenger side? where is the best spot or area to pass thru a wire, for example, fog lights ?

 

[Earwood5150]

Yes that is it.

Thanks Jerry! How do you get to the bolts? I saw 2 14mm deep socket bolts top left of the gas pedal but its much lower. Do I have to remove the dash? Thanks for the info.

 

[chrisbarr]

Thanks for this posting, as I'm in the process of adding additional Switches & Relays. Since I have the Manual, I'm using the spot right next to the gas pedal.
Hope all is well during these crazy times.