In the past week Ive had rodents chew off fuel injector wires twice on my 98 TJ and once on my 03 TJ. All 3 times it has been the #4 injector wires chewed clean off. Other injector wires had chew marks and some insulation missing but no wires chewed through. I used extra tape and plastic tubing to help protect the wires but what ever rodent is doing this chewed right through.

Anyone ever have this happen or have any idea how to keep this from happening?

...Rat/mouse poison..

Some moth balls in a net bag works well just place in engine compartment

Also some warfarin rat poison

Pack rats worse as they bring in cactus pieces and animal crap and pile in a big mess

Give em a extention cord, plugged in of course!

Thanks Guys. This has never happened to me before. They have left my 97 TJ alone. (I guess they don't like 4 cylinders.)

I'm going to give the moth balls and rat poison a try.

peppermint oil works too i think spray the wires and engine bay with it as well as surrounding area of vehicles with pure peppermint oil

Peanut butter on a trap works wonders.

They are probably packrats...they love to chew on engine compartment wires with the hood closed, yet they won't do it with the hood up/open.

Wire a shelled peanut to a rat trap and you will catch the trouble maker.

I was using a .22 cal rifle... Then I got really mad and switched to a 12 Ga shotgun... it works better. I parked my son's Blazer at camp and had Squirrels chewing stuff up... We declared war !!!