i have a 2002 chevy S10 blazer w/ 4.3l engine. my truck does not have the sticker of the vacuum diagram under the hood. i have been looking for 2 days straight and can't find it. can someone please help me out w/ this. and i really don't want to go to the dealer.

rich

 

Bump and anyone please help.

 

Vacuum diagrams vary. The standard emissions label is VERY simplistic.

A little more information about your truck is required to completely detail the system. Is it 4wd? If so, do you have the 3-button or 4-button switch on the dash?

What problem are you experiencing?

Have you tried searching?

 

sorry, my blazer is 2wd and my truck is throwing codes 171 and 174 for the O2 senser. and on the drive side valve cover there is a vacuum hose coming out form the PCV and going to the drive side fender, just to see were it goes and my cruise control is electric. i have tired searching and all i find is the ones for 94 and older.

 

The PCV hose should go into the intake manifold.

Here is a view showing some of the SCFI engine pieces:


And here is a very crude vacuum diagram which does not show the brake booster for whatever reason...:

 

thank u for the diagrams

 

i went and looked at my truck and the diagrams and it doesn't show the hose that i pluged w/ a screw. there are 2 hoses that come from the PCV, i took some pics of it and the hose is the one w/ the red arrows. here are the pics.