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2001 Chevy Blazer P0410 code popping less than 40 miles driving


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seabeenear20years
User

Aug 24, 2013, 9:41 AM

Post #1 of 11 (8763 views)
post icon 2001 Chevy Blazer P0410 code popping less than 40 miles driving Sign In

I've read, and read most all the posts and net. Here's my dilemma briefly. I'm trying to pass California smog. I have changed out both check valves successfully now, no water in pump. It's completely dry. the code keeps coming back P0410 trouble code. I checked all my hose connections there good no holes in the hoses. all vacuum lines replaced due to dry rot and age. the smog pump seems to be spinning up about 1 to 1.25 minutes,and working on cold starts, have bought a new 30 amp MAX fuse, but haven't replaced. I idon't have the fuse tester, to check the old one. don't know the condition of the electrical vacuum valve, the vacuum only operated valve, that goes to the smog pump seems to be opening and closing properly , when manually check with a vacuum tester.
The question now is, so where do I go next? So what could be the reason behind this condition, that would cause this code to return? thanks in advance.

CB near 20 years out CrazyFrown


Hammer Time
Ultimate Carjunky / Moderator
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Aug 24, 2013, 10:32 AM

Post #2 of 11 (8751 views)
Re: 2001 Chevy Blazer P0410 code popping less than 40 miles driving Sign In

They have a lot of trouble with the electric pumps themselves.



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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



Discretesignals
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Aug 24, 2013, 10:34 AM

Post #3 of 11 (8750 views)
Re: 2001 Chevy Blazer P0410 code popping less than 40 miles driving Sign In

There is a TSB on the P0410 code:

Bulletin No.: 04-06-04-015A

Date: November 28, 2006

TECHNICAL
Subject:LN2, L43 or L35 Engine SES/MIL Light Illuminated, AIR Pump Ingesting Water and DTC P0410 Set (Replace AIR Pump and Inlet Hose Assembly)

Models:1999-2003 Chevrolet Blazer, S101999-2001 GMC Jimmy1999-2003 GMC Sonoma1999-2001 Oldsmobile Bravada with Vortec 2.2L I4 or 4.3L V6 Engine (VINs 4, 5, W - RPOs LN2, L43, L35)

Supercede:
This bulletin is being revised to remove a part number and change the two AIR pump part numbers in the Parts Information. Please discard Corporate Bulletin Number 04-06-04-015 (Section 06 - Engine/Propulsion System).

Condition

Some customers may comment on the SES/MIL light being illuminated. Upon investigation, the technician may find a DTC P0410 indicating that there is a concern in the secondary air injection system.

Cause

Water may have collected in the AIR pump or the vent solenoid and frozen or corroded the pump.

Correction

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.

Tighten the bolts to 17 N.m (12.5 lb ft).
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





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seabeenear20years
User

Aug 24, 2013, 10:56 AM

Post #4 of 11 (8742 views)
post icon Re: 2001 Chevy Blazer P0410 code popping less than 40 miles driving Sign In

Great, so okay to new pump that's a great idea. I'll get the repair kit for it. What exactly is the vent solenoid part, mentioned in that TSB you presented? could that be the electrical vacuum switch, mounted to top bracket of the air pump assembly?Wink


Hammer Time
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Aug 24, 2013, 11:32 AM

Post #5 of 11 (8739 views)
Re: 2001 Chevy Blazer P0410 code popping less than 40 miles driving Sign In


Quote
I'll get the repair kit for it.


I hope you meant a complete new pump.



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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



Discretesignals
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Aug 24, 2013, 11:38 AM

Post #6 of 11 (8737 views)
Re: 2001 Chevy Blazer P0410 code popping less than 40 miles driving Sign In

Before you go slapping a pump on there, you should see if the pump is actually blowing air into the exhaust stream.

You really need bi directional control using a scan tool to turn the pump and air solenoid valve on, but you may be able to check them without using a scan tool.

If you bypass the air pump relay to turn the air pump on, you can use your vacuum pump to open the air shut off valve which you tested before. You don't need the engine running. Disconnect the air hoses from the exhaust check valves and feel if air is blowing out with the pump running and air shut off valve open (vacuum applied).







Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.

(This post was edited by Discretesignals on Aug 24, 2013, 11:53 AM)


seabeenear20years
User

Aug 24, 2013, 9:41 PM

Post #7 of 11 (8712 views)
post icon Re: 2001 Chevy Blazer P0410 code popping less than 40 miles driving Sign In

It was very helpful diagram you provided. I picked up the electr. Solenoid vacuumm switch, available for local dealer for $35. replace the 30 amp maxi fuse and 10 amp too. its running better I'm not clearing the code going to let the system do it on it's own to save some time. hopefully I can smog it this Thursday at the latest. thanks for the help I'll let you know how it comes out.


seabeenear20years
User

Aug 25, 2013, 2:55 PM

Post #8 of 11 (8697 views)
post icon Re: 2001 Chevy Blazer P0410 code popping less than 40 miles driving Sign In

I was able to drive the car after church today. the code has cleared of the dash check engine light, and I'm awaiting the catalytic converter to monitor to reset. the P 0410 code remains on the scanner, but I feel a couple good cycle drive should clear this out of the scanner completely.Blush


Hammer Time
Ultimate Carjunky / Moderator
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Aug 25, 2013, 3:00 PM

Post #9 of 11 (8696 views)
Re: 2001 Chevy Blazer P0410 code popping less than 40 miles driving Sign In

Conditions for Clearing the MIL/DTC

  • The control module turns OFF the malfunction indicator lamp (MIL) after 3 consecutive ignition cycles that the diagnostic runs and does not fail.
  • A current DTC, Last Test Failed, clears when the diagnostic runs and passes.
  • A history DTC clears after 40 consecutive warm-up cycles, if no failures are reported by this or any other emission related diagnostic.
  • Clear the MIL and the DTC with a scan tool.




~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



seabeenear20years
User

Aug 26, 2013, 10:28 PM

Post #10 of 11 (8676 views)
Re: 2001 Chevy Blazer P0410 code popping less than 40 miles driving Sign In

I was able to get it the Chevy Blazer in for the smog today, this being Monday. I qualified for the 30 day free retest offer. Chevy passed both functional and gasses portion, and this time with flying colors. So across the board gasses were at levels of what the average car in this class had for both the 25 and the 50 mile per hour treadmill cycles. I'll share this actuals, if there's interest at a different time, but for right now I'm pretty happy about the outcome. Mainly dad, and daughter both have their cars back. I really spent way to much time with that Chevy. a heart felt thanks for all that contributed and searched for the useful information. Cheers.


Discretesignals
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Aug 27, 2013, 3:49 AM

Post #11 of 11 (8668 views)
Re: 2001 Chevy Blazer P0410 code popping less than 40 miles driving Sign In

Glad to read that you got it resolved and that you passed. Wink





Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.






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