I have my bus at the shop at the moment. The mechanic going through it is replacing the IAC valve since it is cheap and he already has the doghouse off. he did find a big slice in one of the vacuum lines. He believes that this is the possible cause to the insane humming noise, and hopefully ...

I have my bus at the shop at the moment. The mechanic going through it is replacing the IAC valve since it is cheap and he already has the doghouse off. he did find a big slice in one of the vacuum lines. He believes that this is the possible cause to the insane humming noise, and hopefully ...

I believe I have this same issue. It was intermittent on our first trip. Having a tune up and other stuff done next week that require the doghouse coming off. May as well get it done.

If I'm not mistaken, 92-96 models are the same so that may increase your chances of finding a doghouse cover. I found one at the local junkyard that was in perfect condition just a couple of months ago. I ended up giving my "pretty good" older one away. For the ...