They make Rat poison that comes in plastic containers with a hole they can enter, place a few in the engine bay and zip tie them in place.

 

Sounds like dinner! Long drive on a hot evening - fricasied rodent!

 

I used DCon in the little cardboard wedges and shoved a few under the fuel rail.

They were living in my air box.

i also sprinkled some under the intake manifold.

one bite and their dead.

Act quickly, mice work fast.

 

take some engine cleaner and give the motor a good cleaning, the smell of the cleaner will keep the rats and mice away

 

Get a cat?