99 yukon 5.7 run wire to engine

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skychair

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On this vehicle is there a good place on the firewall to run additional wiring from the dash to the engine compartment?

I've looked and didn't see a practical place to do it.
Ron
 

skychair

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I went and looked again but found no big boot where the harness comes thru the firewall that I could cpass wires thru.
Don't seem to be any extra 'grommet' accesses on the firewall.

Someone has had to have done this.....I think.
Any suggestions ?
Ron
 

grampadirt

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I made my own...drilled a 1/2'' hole and put a grommet in it.You can get grommets at almost any auto parts store.
 
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