1995 and older vehicles that were originally manufactured with a TAC system are required to have a closed-type air cleaner/filter system to reduce carbon monoxide and hydrocarbon emissions during cold engine operation. All the components must be in place in order to pass the visual emissions component inspection, which is part of the annual safety inspection.
The TAC system consists of the enclosed air cleaner/filter assembly and a heat shroud at the exhaust manifold and then there is also a heat duct hose that connects from the heat shroud to the air cleaner assembly. Also, some of the TAC systems had a fresh air duct hose that attached from the front or side of the air cleaner assembly to either the front or side of the vehicle. If your vehicle came equipped with a TAC system and if it was removed and replaced with an open-type design air filter/intake assembly, the vehicle will fail the visual emissions component inspection.
The TAC system consists of the enclosed air cleaner/filter assembly and a heat shroud at the exhaust manifold and then there is also a heat duct hose that connects from the heat shroud to the air cleaner assembly. Also, some of the TAC systems had a fresh air duct hose that attached from the front or side of the air cleaner assembly to either the front or side of the vehicle. If your vehicle came equipped with a TAC system and if it was removed and replaced with an open-type design air filter/intake assembly, the vehicle will fail the visual emissions component inspection.
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