P0299 and p2261 trouble codes

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04-29-2019, 07:15 AM

#21

DrLoch

Senior Member

Join Date: 09-07-2008

Location: Mebane, NC

Posts: 1,016

Quote:

Originally Posted by firemangeorge

I don't think you can delete the vacuum tank and have it work correctly. There is a reason GM put the tank there to have a reserve supply. The system calls for vacuum at times it's under boost or not "pulling" a vacuum. Without the tank, it has no vacuum to pull from.

Correct, you can't delete the vacuum tank and have everything work correctly.

04-29-2019, 08:23 AM

#22

donbrew

Technical Moderator

Join Date: 01-23-2009

Location: Fredericksburg, Virginia

Posts: 24,694

Quote:

Originally Posted by WhiskeyshotSS

Yes it is are pointed towards the ac. I will check the cables and o-ring tomorrow.

See post #3.

04-29-2019, 09:04 AM

#23

WhiskeyshotSS

Thread Starter

Join Date: 04-05-2016

Location: fontana

Posts: 9

I will take some pictures of the lower sensor soon and post them here.

04-29-2019, 09:06 AM

#24

WhiskeyshotSS

Thread Starter

Join Date: 04-05-2016

Location: fontana

Posts: 9

Quote:

Originally Posted by DrLoch

Correct, you can't delete the vacuum tank and have everything work correctly.

i see, is there a way I can test the tank to see if it still good? When I got the car, all those vacuum lines coming up from the solenoid on the intake manifold were plugged into the wrong spots.