78' emissions sticker
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Joined: Apr 2003
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78' emissions sticker
I own a 78 bronco that originally had a 351m and np435 transmission. It is not a california model. The 351 was swapped out for a 400m. I cannot find an emissions/vacuum line routing diagram that would apply to the 400 with an np435. Does anyone have one that could be scanned or know where I could go to get one? I have both a chilton and a Hayne's and I am not finding that combination in the diagrams. Maybe I don't know excatly what I looking at. Any help would be greatly appreciated.
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Joined: Apr 2003
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78' emissions sticker
I guess what I'm looking for is a vacuum routing diagram. A 78' doesn't have cats or an air pump, however there is an egr and other simple stuff that needs to be routed. To get it to pass emmisions in Utah I had to prove to the inspection station that that was all the 78 had to have. It was a real pain. I now have been able to pull it up into the garage and start to do some mods and restoration and would like to redo all the vacuum lines. I just want to make sure that they are right.
Post Fiend
Joined: Nov 2002
Posts: 9,987
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From: Memphis, TN
78' emissions sticker
There were emissions controls before '79. A '75 Bronco I built for a friend had evaporative & PCV emissions systems originally.
Look here for a vacuum diagram.
Look here for a vacuum diagram.
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