Standard Ignition AIP3 secondary air injection pump for the 2004-2005 Chevrolet Trailblazer 6-cylinder 4.2L and other vehicles moves fresh air into the exhaust side of the emissions system.
A check engine light with a secondary air fault code, or an unusual noise from the pump, can mean it is wearing out. Before replacing it, look over the pump's electrical connector and both hoses with the engine off and cool for cracks, loose fit or damage, because a cracked hose or a loose plug can set off a similar fault.
This listing is one pump. It is listed for a wide range of Chevrolet, GMC, Buick and Oldsmobile models, including the 2004-2005 Chevrolet Trailblazer EXT 6-cylinder 4.2L and the 2004-2005 GMC Envoy 6-cylinder 4.2L, and each takes one.
Fit and size
Build and materials
Is this the secondary air pump for the 2004-2005 Chevrolet Trailblazer 6-cylinder 4.2L?
Yes, the Standard Ignition AIP3 is listed for the 2004-2005 Chevrolet Trailblazer 6-cylinder 4.2L and for other models. If your car is a different one, look it up in the "Vehicles it fits" section on this page.
What size hoses connect to the Standard Ignition AIP3?
The Standard Ignition AIP3 has two hose connectors, and the hose size is 1.5 inches.
What kind of electrical connector does this secondary air injection pump have?
This pump has one oval female connector with two male blade terminals.
What signs can a worn secondary air injection pump show?
A check engine light with a secondary air fault code or an unusual noise from the pump can point to wear. A shop can test the pump and the rest of the system to find the cause.
Where is the Standard Ignition AIP3 secondary air injection pump made?
The country of origin for the Standard Ignition AIP3 is China.
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WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
