Air Pump
Drifting
Joined: Jan 2000
Posts: 1,660
Likes: 9
From: Charlotte, NC
You can actually disconnect it at the windshield washer resevoir if that is easier.
Assuming your car is cold, then the air system should come on when you first start your car. I did this while diagnosing my P0410 problem and the air pump worked fine.
That is why I never suspected the vacuum line being the problem...but it was. The Chevy technician, using the Tech2, showed me how when he programmed in for the air pump to come on, it wouldn't. I cannot understand nor explain why it would work for me using the above procedure but not work for him while using the Tech2. Regardless, he was right in his assessment.
Assuming your car is cold, then the air system should come on when you first start your car. I did this while diagnosing my P0410 problem and the air pump worked fine.
That is why I never suspected the vacuum line being the problem...but it was. The Chevy technician, using the Tech2, showed me how when he programmed in for the air pump to come on, it wouldn't. I cannot understand nor explain why it would work for me using the above procedure but not work for him while using the Tech2. Regardless, he was right in his assessment.
Thread Starter
Intermediate
Joined: Feb 2007
Posts: 39
Likes: 0
Thanks again for the info. I think I will test the pump, replace the rear check valve, and check the vacuum line again. I know from reading posts the rear valve is a b****. On initial glance, it looks like replacing 5' of vacuum line will be a chore also.
Drifting
Joined: Jan 2000
Posts: 1,660
Likes: 9
From: Charlotte, NC
Do you have access to an air compressor?
If so, have you tried the trick with blowing some carb cleaner through the check valves a couple of times followed by blowing WD-40 through the check valve a few times? Apparently, this was worked for a lot of people and saved them from having to replace the check valves.
If so, have you tried the trick with blowing some carb cleaner through the check valves a couple of times followed by blowing WD-40 through the check valve a few times? Apparently, this was worked for a lot of people and saved them from having to replace the check valves.
Team Owner
Joined: May 2004
Posts: 26,345
Likes: 231
From: SoCal
What is the problem you guys are having.
Is the check valve stuck open or closed?
I am concerned that a lean condition exists on my car and it was suggested that the valve may be letting air by.......????
DH
Is the check valve stuck open or closed?
I am concerned that a lean condition exists on my car and it was suggested that the valve may be letting air by.......????
DH
Burning Brakes
Joined: Oct 2003
Posts: 1,106
Likes: 1
From: Foresters Falls(near Ottawa) Ont
Do you have access to an air compressor?
If so, have you tried the trick with blowing some carb cleaner through the check valves a couple of times followed by blowing WD-40 through the check valve a few times? Apparently, this was worked for a lot of people and saved them from having to replace the check valves.
If so, have you tried the trick with blowing some carb cleaner through the check valves a couple of times followed by blowing WD-40 through the check valve a few times? Apparently, this was worked for a lot of people and saved them from having to replace the check valves.
I filled the line with carb cleaner and let it sit. Put the air hose to it, buttoned it all back together and haven't had the CHECK ENGINE light or codes since!!RonJ ...
