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What does the error code P0442 in a Buick 2002 Lesabre and how do you fix it?
Updated: 10/24/2022
PeggyHall
Lvl 1
∙ 15y agoBest Answer
Evaporative Emission (EVAP) System Small Leak Detected. The evaporative emission system is what pulls gasoline vapor from the gas tank through a charcoal canister and into the engine. There might be a loose hose or hole somewhere in the system or maybe the gas cap was left off.
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