Throttle body vacuum diagram please?

JACOB62

MEMBER
2000 CHEVROLET S-10
150,000 MILES

Need to know where exactly all the vacuum lines go to where and what an the throttle body of my 2000 chevy s-10 2.2 automatic. Mostly just two that I think I might have backwards the one that comes from the drivers side fender vacuum box thing and the fuel pressure regulator. One goes to the front of the throttle body and one goes more to the back but which one the ports are the same exact size the way I originally put them back it seemed to have trouble rite when i'd take off from a start and when I switched them now it doesn't but it doesn't look rite to me cuz the line is a bit stretched now but maybe whoever had it b4 me cut off sum of the hose due to cracks

1 Reply

KASEKENNY

MECHANIC
18,907 POSTS

These lines should maintain their form so they should want to fall back where they go. If you are stretching them then that is not the correct location.

Here is a guide that talks about this system in general:

https://www.2carpros.com/articles/how-emission-control-systems-work

I assume you are dealing with a vacuum leak so even if you just run bulk hose to each of these connection points to properly connect them then use this guide to check for the vacuum leak if the engine still runs poorly:

https://www.2carpros.com/articles/how-to-use-an-engine-vacuum-gauge

Please see the attached info below and let us know what other questions you have.

Thanks

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