Right below the cooler.
the air pump on 2005 trailblazer is located on the frame rail on the drivers side .by the drivers door
The 2002 Chevrolet Trailblazer air pump can be found on the firewall in the engine compartment. The air pump will be on the passenger side of the firewall.
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The air compressor/pump is located under the front fairing in the right pocket. To access the air pump remove the front fairings right-hand pocket cover.
The air pump or smog pump on a 99 GMC Jimmy is located right behind the bumper, below the radiator, and on the passenger side.
The air pump (compressor) is located on the driver side fender underneath the air filter box. Once you remove the air filter box, you will have to remove the compressor bolts from inside the wheel well.
If you mean the secondary air injection system used in automotive applications: depending on the year, make, and model of the vehicle, the AIR pump can be located on either the belt drive or as a separate, electronic, pump somewhere in the engine compartment.
it is under the air filter box under the hood
the air injection pump is located under the radiator on the passenger side of your blazer. also remember not all blazers made in this year had the air pump
under the coil on the left side
The secondary air pump is located at the front of the engine, between the engine and the radiator, you can see it from below the car. To get to it you will have to pull the front of the car partially off.
The KA24e in the stanza does not use an air pump (SMOG pump in CA). Rather, it uses vacuum valves and a hose that runs from under the air box to the exhaust collector.