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Intake manifold and a mouse nest question

MoparTrucks

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I discovered a mouse had taken up residence in the engine bay of my 2003 GMC 2500HD with a 6.0 L and though I got most of it out they had packed one of the square openings on the side of the intake manifolds with insulation and other **** they tore off from the sound deadening material on the hood.

These manifolds have two square openings on each side right where it sits on the heads, do I have anything to worry about with junk somehow getting into the engine? One of the things thats in there is big enough to probably block that opening and I have tried everything to get it out including tweezers, a vacuum etc. but no luck and it may be a rock or something.

The mice did a job on some of the wiring and the EGR hose but I repaired that and the truck is running fine right now; I just dont know about those openings and am trying to avoid taking off the intake manifold and fuel rails.
 
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1949 caddyman

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If the material is on the outside of the manifold I dont think it would be a problem. Under the plastic manifold there are knock sensors with wiring, they love to chew wires. Here in Arizona we have a virus called Hana virus. It comes from mouse urine & poop. People have died from cleaning there cabins, cars etc. as they inhale the virus. There is no cure for it . Be careful when dealing with mouse nests!
 

Chipmunk

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In 1974 I got a new dog (German Sheppard) and a new used Buick on the same day. They both lived in our garage in Fargo North Dakota. The dog was humongous, one day when it was about 30 below I let the dog into the house to warm up and have some water that was not a solid. I left the room with the dog and a frozen whole chicken thawing in the kitchen sink to answer the phone. When I returned the dog had drank his water and eaten his Milk-Bone treat so I put him back in the garage. About half an hour later my wife asked me what I had done with the chicken, it was gone. We searched the house but never did find that chicken, not even a lousy bone. I had my suspicions but could never prove anything.

Anyway, I think the dog must have harbored some sort of a resentment against me because that night he ate the valve stems off all four tires. When I awoke to the sound of hissing I went to the garage in my shorts and the dog and I had a “come to Jesus” meeting. I told him he had bitten his last valve stem and stole his last chicken, frozen or not. I also expressed my concerns regarding his incessant barking each and every night and told him if he had thumbs I would make him replace the insulation he had ripped off the walls.

As I was chewing him out I noticed a mouse scurry up the left front flat tire and disappear. The dog witnessed this event also but made no effort to stop or even delay the mouse. He was supposed to be a guard dog, perhaps he had been trained at a minimum security white collar prison in Sweden.

The next morning (Saturday) I put the dog on cheaper dog food at half rations for a week, and blocked his doggie door from the inside. I raised the hood on my Buick, everything looked fine. But I knew that little ******* was in there somewhere, most likely hiding behind the coil, giving me the mouse finger.
I removed the air cleaner and found a multi-room nest made for a King mouse. In one portion of the nest, made from enough insulation to provide an R rating of 36, was a small pile of pebbles (I suppose to retain heat after I had turned the car off) in a separate pile was neatly stacked Purina Dog Chow Nuggets and in another area was a sleeping chamber lined with leaves, but the crucial piece of evidence was a valve stem plastic cap laying in the center of the nest.

I called the dog back inside the garage for another meeting. I asked him if he had any idea how many trips that mouse had to make up and down the tire to accumulate such a vast storehouse of the dogs own food, not to mention the warming pebbles and the building materials. He had no answer, just sat their looking dumb.

Throughout the course of the day I had all the tires repaired where the car sat, while the dog watched, as if he were trying to learn something.(doubtful)

I parked the car outside in the driveway, hoping the mouse would seek shelter elsewhere, now that his humble abode had been dismantled.

Sunday morning brought new challenges in the form of about three feet of snow. I looked out the kitchen window for the dog, but no dog. I figured he must be in the garage because my back yard was surrounded by a six foot high chain link fence. So I checked the garage, again no dog. So I got dressed and went outside to look for the dog or his body. When I got outside I could see a snow drift that I couldn’t see from the window. The drift was a big one and went from the ground to the roof of my garage. Where my dog was walking around like he was a ranger in a fire tower.

Monday morning I started the Buick, sure that the mouse was just an unpleasant memory. I drove North on University Avenue, a one way. It was about 5:40 am.
I’m driving along about 35 miles an hour and all of a sudden I find myself eyeball to eyeball with the mouse, he’s looking at me and hanging on to the windshield wiper with his little front paws.

It was funny because the wind was blowing the fur on his neck and head over his face and his little ears were flapping back and forth at me. I don’t remember if my Buick had intermittent wipers of not. But I turned then on to the lowest setting (I didn’t want to fling the little guy against some tree on the boulevard)
But he hung on, as the wiper took a sweep to my left the little mouse’s **** and tail would swing further to the left, then to the right, where his **** would bounce at the end of the sweep. But kept hanging on, left, then right, left once again (Weeeeeee) then right once more. I wondered what the mouse’s limits were. Could he hang on at Monsoon speed? What about gale force 7? Let’s find out, I cranked the wiper knob all the way to the end. Now he’s just a blur of fur, but still reluctant to let go. I figured I’ve give the little ****** a rest and returned the wipers to low, but increased my speed to about 65, then back up to top wiper speed . My forward motion speed combined with the mouse’s sideways speed must have been the equivalent of warp speed 13 on the Starship Enterprise. Through it all the mouse held a death grip on my GM wiper blade. Just before I got to the plant gate I shut my wipers off. I said to my self, you made it little guy, good for you. I had a new found respect for the mouse with the ruffled fur. I glanced back at my car as I walked to the gate but didn’t see the mouse.

At the lunch break I told my fellow workers about my mouse and his adventures on my wipers. One crazy dude offered to blast him to smithereens after works. I declined, he most likely would have shot the tire out on the wrong car.

The mouse was gone, and I missed him. I knew he was gone for good when I pulled into my garage and my dog ran up to the left front tire and stared in to the wheel well then hung his head and walked over to his bed and laid down. Just when you start to like someone, they leave.
 
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MoparTrucks

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Interesting replies, thanks! What surprised me is that its not like this truck sits all the time, its driven every couple of days and we have 5 or 6 barn cats running around supposedly working at rodent control....they must be slackers.

Great story Chipmunk, gave me a chuckle this morning. I think I will just let it go and see what happens.
 

CudaChick1968

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Chipmunk, that was an awesome story!!! Very well written ... thanks for sharing.

It might be a bit late for you this time Salmon, but placing a few Bounce-type dryer sheets under the seats, glove box, engine bay, etc., will help keep rodents out of your ride. They hate the smell. I've heard mothballs also work but I hate their smell so I never tried them.
 

xtremek

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Our cat's a skrawny thing that sounds like a dying asthmatic, always weezing. I didn't think much of him the first time I saw it(married INto cat ownership). That changed one night when a **** on the front porch woke me up. I open the door and the ****, saw me, then the cat. The cat stared the **** down and the **** was twice his size. Anyway, one evening I saw him playing with a mouse, but didn't kill it. I thought what a stupid animal. I did a couple of oil changes. Walked into the barn the next day and I found a dead oil covered mouse laying in my drain pan. Way go, Cat! As far as the intake thing, it should be a sealed unit with only one inlet, so as long as the air fliter is intact you should be good. I'd be more worried about a fire breaking out with the junk getting pretty hot on the top of the engine.
 

volaredon

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Interesting replies, thanks! What surprised me is that its not like this truck sits all the time, its driven every couple of days and we have 5 or 6 barn cats running around supposedly working at rodent control....they must be slackers.

Great story Chipmunk, gave me a chuckle this morning. I think I will just let it go and see what happens.

if it's like that Dodge in your pic the older Dodge V8s had a similar cavity in the heads above the exhaust crossover passage; center of heads (front to back wise) just above the intake manifold and looks like there's a "hole in the head" on each side... maybe thats why they eliminated that crescent shaped hole over the heat crossover passage and eliminated that passage compeletely when they switched to the Magnum series of engines in the 90s--- though it was only big enough for maybe "baby" mice to fit in, in the 1st place....
 
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volaredon

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Chipmunk, that was an awesome story!!! Very well written ... thanks for sharing.

It might be a bit late for you this time Salmon, but placing a few Bounce-type dryer sheets under the seats, glove box, engine bay, etc., will help keep rodents out of your ride. They hate the smell. I've heard mothballs also work but I hate their smell so I never tried them.

forgot about Bounce sheets I just went out to the barn yesterday and put mothballs throughout my 78 Fury Sport as I see evidence of dashboard insulation pulled out and laying where it should not be; and I had the cowl off my 93 Dakota a couple days ago to replace those nylon bushings in the wiper linkage and found the remnants of a nest in the cowl of that too
 
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MoparTrucks

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Our cat's a skrawny thing that sounds like a dying asthmatic, always weezing. I didn't think much of him the first time I saw it(married INto cat ownership). That changed one night when a **** on the front porch woke me up. I open the door and the ****, saw me, then the cat. The cat stared the **** down and the **** was twice his size. Anyway, one evening I saw him playing with a mouse, but didn't kill it. I thought what a stupid animal. I did a couple of oil changes. Walked into the barn the next day and I found a dead oil covered mouse laying in my drain pan. Way go, Cat! As far as the intake thing, it should be a sealed unit with only one inlet, so as long as the air fliter is intact you should be good. I'd be more worried about a fire breaking out with the junk getting pretty hot on the top of the engine.
Funny you should mention that, one of the things I cleaned out was a small round orange smoke bomb that they must have scavenged from the woods (left over from the 4th). It had been already burned but can you imagine trying to figure out why orange smoke was billowing our from under your hood?
 

xtremek

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That's an automonous navigational robot that I helped build. It's designed to stay between a pair of lines, avoid obstacles while manuveuring to different GPS coordinates. I did the mechanical design/build. You can facebook Oakland Robotics Association or these videos on youtube
.
 

xtremek

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I forgot to mention that you should skip the first minute or two of the first video and make sure you watch it to the very end. If you know anything about programming, the video editing was done in MatLab.
 
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MoparTrucks

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You should be ok, check the undersides of the injector wires though, as well as under the fuse block.
Thanks, I went over everything pretty thoroughly and I think I fixed all the damage the little buggers did. I used it to tow the equipment trailer to haul culvert about 100 miles today with no issues.

I was just surprised at the speed with which they did their dirty work. It sat for maybe 5 days.
 

PugetDude

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Bumping an old thread... (I know, I, know...)

Just discovered this on my 2010 Dodge Ram...:(

It sat for three months, then I took it on a quick trip over to Eastern WA; everything was fine on the way over- but on the way back the check engine light came on and the ECO mode light dropped out... got almost 20 mpg going over, 16mpg coming back... turns out rodents had chewed up a big chunk of the hood insulation pad, then built a nest under the manifold.. Manifold has to come off to assess further damage. Seems strange that it was fine on the trip over, but the problem didn't show up until I was on the way back home three days later. I suppose it could have happened while I was there, but the truck didn't sit for any extended length of time on the trip.

Ah, well, it's only money....:mad:
 
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