Code PO410

2004 GMC ENVOY
54,000 MILES • 6 CYL • 4WD • AUTOMATIC
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JERRY STOLTZ
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I had a code PO410. Where is the location of the secondary air injection pump on my 2004 GMC Envoy with the 4.2L inline 6?
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Feb 11, 2011 at 10:11 PM
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RASMATAZ
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SECONDARY AIR INJECTION (AIR) PUMP REPLACEMENT

REMOVAL PROCEDURE

Raise the vehicle. Refer to Vehicle Lifting.
Disconnect both the air inlet and air outlet pipes from the secondary air injection (AIR) reaction pump.
Remove the electrical relay from the AIR pump bracket.
Disconnect the electrical connector from the AIR pump.
Remove the 3 bolts securing the AIR pump bracket to the vehicle frame.
Remove the AIR pump from the vehicle.


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Feb 11, 2011 at 10:18 PM
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DOCFIXIT
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Under vehicle on frame see diagram
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Feb 11, 2011 at 10:25 PM
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Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.