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Old 08-23-2015, 06:49 AM   #5
Dead Parrot
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Join Date: Aug 2012
Location: Oklahoma City, OK
Posts: 2,809
Re: Input on smog removal

From memory, my heavy duty emission 75 has the following vacuum items:
vacuum advance on distributor, PVC, brake booster, THERMAC(air cleaner), shift modulator on the transmission, and climate control(most of the flaps in your heat/air are vacuum powered). If you have and pull the charcoal canister you will need to arrange for gas tank venting(if it works, probably better off leaving it).
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