How to check for p0411 GMC secondary air injection system insufficient flow?
Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins. How much do you know about cars? The cost of diagnosing the P0411 GMC code is 1.0 hour of labor.
Where are the relays on an air injection pump?
There are 2 relays. The one they gave you is on the pump. The other is in the fuse block. You need a scan tool to check all this. You need to command the system on to verify the pump and solenoid are working. The secondary air injection (AIR) system aids in the reduction of hydrocarbon emissions during a cold start.
What causes a GMC air pump to malfunction?
P0411 GMC Possible Causes 1 Vacuum hoses damaged or pinched 2 Faulty Air Pump inoperative 3 Faulty Air Pump harness is open or shorted 4 Faulty Air Pump circuit poor electrical connection
Where is the fuse box located on a GMC Envoy?
Fuse box location Rear Underseat Fuse Block It is located under the rear seat on the driver’s side of the vehicle (tilt the seat up, remove the fuse box cover). Engine compartment fuse box
Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins. How much do you know about cars? The cost of diagnosing the P0411 GMC code is 1.0 hour of labor.
Which is part of the air pump relay?
The AIR solenoid valve assembly controls the flow of air from the AIR pump to the exhaust manifold. The AIR pump relay supplies the current needed to operate the AIR pump. The AIR solenoid valve assembly has an integral check valve, pressure sensor, and solenoid valve.
How to test ALC relay GMC air ride suspension?
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Fuse box location Rear Underseat Fuse Block It is located under the rear seat on the driver’s side of the vehicle (tilt the seat up, remove the fuse box cover). Engine compartment fuse box