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Old 01-27-2021, 06:53 PM   #3
EVRLET
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Join Date: Aug 2015
Location: Las Vegas NV
Posts: 354
Re: Secondary Air Injection Solenoid

Air pumps, smog pumps, were used in vehicles that were bought and/or used in states with strict emission standards. My Tahoe was a California fleet vehicle, thus the air pump. The pump, solenoid and control valve sits behind the driver’s headlight. Most non-air pump trucks have a storage box there
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