Air Injection Pump Relay: Locations

2007 Chevrolet Impala V6-3.5LSECTION Locations


Powertrain Component Views

Secondary Air Injection (AIR) Components (LZ4/NU3)




1 - Engine - LZ4
2 - Secondary Air Injection (AIR) Pump Solenoid
3 - Throttle Body
4 - Secondary Air Injection (AIR) Solenoid Relay
5 - Secondary Air Injection (AIR) Pump Relay
6 - Secondary Air Injection (AIR) Pump
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.