The above vehicle is a newer model Chrysler Town & Country mini van. Our customer lives in Alpine California which is in San Diego county the third-most-populous county in California, just behind its northern neighbors Orange and Los Angeles and it also ranks fifth in the united states over all. Alpine is higher in elevation than San Diego city sitting at 1841 feet above sea level. Alpine has a lot more trees and ground cover and is in a cooler, wetter climate than San Diego and has a lot less population density and so it supports more wild life.
Our customer called and complained of a bad smell coming from his vents inside the car. He asked if we could do some thing about the smell and I told him that we deal with this situation on a regular basis.
So our customer brought in his mini van and we started the process. Upon preliminary diagnosis we made the decision that flushing chemicals through the vent system wouldn't be good enough we would have to pull out the entire heater-A/C box (Plenum box) and clean the pieces individually. The first thing we had to do was rip out the Plenum box from the mini van (this was a big job). The above photo shows the van with Plenum box already out and on the ground.
Here's a picture of the top of the box and the evaporator core (the evaporator is what the A/C uses to produce cold air). Notice the white paper covering the evaporator core ? That was where the rat or rat's were living making a nest there. The rat's get into your vehicle through the outside fresh air vent which they usually chew through. Rat's can also make a mess out of your wiring, they love to chew through wiring.
This is a picture of the blower motor cover notice the feces in the bottom ? There was a lot of feces we found and the smell was very bad. Also our customer has a medical condition that involves his breathing so he can't stand the smell of a lot of things chemicals included, so we decided to replace the parts where the rat was living. Most of the time we have chemicals we use to clean out the parts that are infected but the stuff has a chemical smell and we were afraid that the rat urine and feces had soaked into the plastic parts making them useless.
This picture above is most of the parts we had to replace, the plenum box on the table and the rest of the plenum box parts are lined up across the wall. Total cost of replacement parts was about $1200.00 plus labor. We had to purchase the majority of the parts from the dealer which made the cost expensive.
I've heard tell that Irish Spring bath soap bars will keep the rodents away they don't like the smell. You cut the bars into pieces and spread them around and on your vehicle especially in the engine compartment, keep them away from hot surface's though ( this is hear say from a friend so don't quote me but he claims it does work ). The other option to prevent infestation could be to bait the area with traps or sticky traps if you keep the vehicle parked, also you can call an professional exterminator they could have some more tricks up their sleeve that I don't know.If you suspect a infestation you can check under your hood for rodent feces and snail shells, they love to eat snails. If you have a motor home look for chew marks in the wood surfaces leading into the interior of the cab. If you have a rat problem you will notice the smell first most likely. The next step would be to call your local radiator or A/C shop and ask them if they have experience in rodent infestation and what they do to rid the car of the smell, if they are in the know they will offer to clean the vehicle out with special cleaner that foams up in your vents, or they may have to pull you plenum box and do a more thorough job as we had to with this customer. If you have any questions please don't hesitate to give us a call we are always happy to help and can point you in the right direction.
http://www.intermountainradiator.com
