GMC Repair: Service Light, radiator fan shroud, vacuum source


Question
2001 Jimmy SLT 4x4 with trouble code PO410 I have replaced the secondary air pump twice, thermostat and an oxygen sensor since April of this year. Vehicle only 105 KS' or 62000 miles. Any suggestions to the continuos problem?

Answer
Hi
There is an updated hose to attach to the AIR pump.
It actually comes in a kit.
Here is the part # 17803251
Here is the procedure
Replace the AIR pump and install a new inlet hose and solenoid tube assembly using the following procedure:

Raise the vehicle on a hoist.
Remove the shield covering the AIR pump.
Remove the hose and vacuum lines from the pump and solenoid.
Remove the AIR pump inlet hose. Do not re-use the hose.
Disconnect the electrical connectors from the pump and solenoid.
Remove the pump mounting bolts and pump.
Transfer the isolators from the old pump to the new pump.
Install the new AIR pump and bolts to the vehicle.
Route the new hose assembly up between the engine and fender. The hose should come up near the area between the battery and the coolant bottle.
Connect the new inlet hose to the pump inlet.
Connect the old outlet hose to the pump outlet.
Connect the electrical connector to the pump.
Connect the electrical connector for the solenoid to the connector on the new hose assembly.
Connect the hose with the white nipple to the vacuum source hose.
Connect the remaining hose to the shut off valve.
Install the shield covering the AIR pump.
Lower the vehicle.
Remove the coolant reservoir nut nearest the battery.
Route the new hose assembly between the battery and the coolant reservoir with the solenoid on top.
Install the solenoid bracket onto the coolant reservoir stud and reinstall the nut back into the vehicle.
Use a wire tie to keep the new hose assembly away from the engine. On four cylinder engines, tie to the AIR outlet hose. On six cylinder engines, tie to an available hole in the radiator fan shroud.
I hope this helps.
If more info needed please follow post back
Good luck
Pawl