Hello,
I need some help finding where this hose used to be connected. I found it loose just dangling at the bottom of the engine bay. It seems to me it has something to do with the vacuum of the cruise control - which by the way stopped working a couple of weeks ago. Here are some pictures - perhaps someone could help me recognise what is this hose for and where should it be connected on the other side?


This side is connected

then it goes to the front and down and hangs loose...


Sorry if the pictures are too big... not sure how to make them smaller.

Thanks in advance
Olgi

 

Forgot to mention - it's in a 1994 Chevrolet g20 V8 5,7 van

 

Probably a carbon canister hose

 

Did you try Google? There's a plethora of info there.

 

Thank you - still trying to locate the vacuum tank - but the images are very helpful

 

the part that you've circled in your image is a one-way valve meant to hold a vacuum. It's usually located between the intake manifold and the tank.

 

Those old vacuum tanks always looked so funny to me.Almost like it belongs on a diesel motor. Back in the day, EVERYTHING ran off of the electric vacuum pump on a rig and off the air pump. Wipers, heater valves. Some trucks came with air-power steering, but if you were backing or taking too much time it was back to non air-power steering.

Nowadays besides10 to 21 speeds (and they have "auto-shifts" in some OTR rigs), the inside of a cab isn't much different then a Chevy 3500 pickup. Hydraulic power steering, electric wipers, ect

Oh yeah and air-conditioning too..Back in the day, only O/O's would have A/C, but the A/C compressor failure rate is pretty high even now for some reason.

 

These diagrams helped. Found the problem. Thank you.

 

Ive got a similar problem with a truck that I'm putting back together. It's a 1993 c1500 with the 4.3. Long story but i dont know how it was originally so I'm just having to basically go off internet pictured. I also found a 4.3 at a junk yard but it didn't have the purge solenoid.

So here's my problem: ive been reassembling based on the assumption that i had an EGR solenoid. The bracket that it mounts to can have either the EGR or EVAP cannister purge solenoid mounted, but not both.


so with the EGR solenoid i have a home for all the vac lines (not that that matters anyway because again everything's being put back together basedbon assumptions). But when I go to connect the electrical, it won't plug into EGR solenoid. That's what made me realize that the plug is for the evap purge solenoid.

So does anyone have pictures of where the vac lines connect on a 4.3 with a vacuum EGR if i have no egr solenoid valve? And I say that i have no EGR solenoid simply because i have no plug for it and my harness is the only thing i can guarantee is original.