Secondary air pump location?

The secondary air pump is located under the hood on the passengers side. Check out the diagrams (below). Let us know what happens and please upload pictures or videos of the problem.

These systems have a relay that will be probably in the underhood electrical center. The VCM- vehicle control module supplies a ground to turn on the relay and pump. Do the easy stuff first, change the relay and see if it works or not. The secondary system only works at start up and deceleration. If it still doesn't work after the relay change then you'll have to see if the relay is getting power and whether or not it is getting ground from the module/computer. Which means you'll probably have to have a pro look at it.

Good morning,

No, it is easy. The pulley bolts on the pump.

I attached a procedure for you below. You should be good. If you have any further questions, feel free to respond.

Roy

AIR PUMP, REPLACE

Except 4-119 Engines

1. Mark and remove air pump pulley.
2. Disconnect air hoses and vacuum line from diverter valve. On models with a remote diverter valve, disconnect air hose from pump.
3. Remove pump mounting bolts and the pump. If pump is being replaced, transfer diverter valve to new pump.
4. Reverse procedure to install, noting the following:
a. Ensure that centrifugal filter is properly seated on pump hub.
B. Torque pulley mounting bolts to 10 lb ft evenly.
C. Adjust drive belt tension to specifications.

Yep. Good luck

Roy

It sounds like the pump vanes. Cleanout the lines and make sure you got them all out.

Roy

Secondary air system is referring to the check valves on the exhaust where the air pump lines connect. They are supposed to be check valves, but they burn up and let exhaust back the wrong way

Im going to touch this one gently, there is and has always been issues with gm airpumps, if the fuse is blown its blown for a reason, an internal failure of the air pump or wiring, but more than likely the pump is bad, as far as getting ripped off I say no it takes more than most people know to do this job or they would fix their own cars, but most people dont have a seven thousand dollar diag scanner, and monthly access fees for info and 50 grand in tools, and years of experience to properly diagnose and repair a vehicle, a wise shop owner of 35 years once told me that we as techs work our whole lives around cars that dont pay for what we have learned, or for the abuse we put our body and minds through, give your guy a break he sounds honest and picked up the problem quickly and the price sounds fair

thanks

jim

What was the actual code number? If you had the pump replaced, take it back and tell them, you still have a problem. Who did the work on your vehicle? Did the dealership diagnose the problem? I don't mean the code, did they diagnose the system?

Hello, here is the location of the air pump and fuse. The main failure of these pumps is moisture getting into the air tube, then into the pump. Make sure to remove the piping and check for water intrusion and there is a check valve also on the piping. Be sure it's not stuck open. There is also a technical service bulletin I included.