The Mighty 258 > Emissions/Vacuum Systems

Vacuum Line 101.

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IowaEagle:
Your AMC Eagle probably has what seems like miles of vacuum lines going everywhere from and to strange and mysterious places.  A good number of these are related to the emissions controls of the '80's.   One bad line can make your car run terribly.  So its best to get hold of a vacuum diagram and some new hose and spend the weekend replacing it all.

Now a word about vacuum diagrams.  In a perfect world there would be only 1 diagram -- even 1 per year would be tolerable.  However, every year AMC Eagle seems to have a myriad of combinations and permutations -- based on the EPA regs that year, for what state the car was delivered to, engine, transmission, etc.  etc.   So if you are in desparate need of a vacuum line diagram you will need a TSM for your particular model year and you will also need to know which one will apply to your car. 

And your AMC Eagle will also have vacuum lines for the 4WD (except '80), the A/C if you have it, your Power Brakes and Cruise Control (if you have it).  All these need to be in good shape too.

Aquila:
This is gonna sound "nubish" but where do I find such a diagram(s). This is the primary problem with my car right now, Some of the lines are not even hooked up or the are but they just don't go anywhere.

IowaEagle:
Most of them are within the AMC Eaglepedia.  See the very first board on the forums index page.

Aquila:
Thank you sir

jepstr67:
Or.......on a 258, go get a cast iron intake manifold off of a Gremlin and "back date" your engine to 1970 when there was not a spaghetti farm of vacuum hoses under the hood.  I did that to my 83 CJ8 and I've been a happy camper ever since. Runs like a top. Idles like a champ. NEVER a problem since!!!!

I kept the EGR, PCV, and TAC but all that other junk went in a box on the shelf along with the Carter BBD. I run a Rochester 2G now. I rigged up a direct line from an air pump I added to the catalytic converter to keep it from burning out. That goofy check valve set up never worked and rusted out about twice a year.

I pity anyone who actually has to try to get all that vacuum mess to work correctly. Good luck!

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