Kolby

I finally got my car back together and it should soon be running. While it sat, its seems that I forgot where a few hoses go. Any help would be GREATLY appreciated.


IMG_1068.jpg?t=1295300291
The hose is too small to go to the plenum above. I need to know where this hose goes, and what plug into the plenum.

IMG_1069.jpg?t=1295300380Where does this go? The other side runs out into the fender.

IMG_1070.jpg?t=1295300427The smallest hose that goes up top. What is the other end supposed to connect to?

t-topsavage

ok so in the top picture the hose that is running off your egr valve that you do not have hooked up goes into the right opening on your plenum that you have something else hooked into. the left opening on your plenum is for your cruise control vacuum hose with is your second picture. your splitter is broken tho, there should be a smaller hose that dissapears into the wiring harness that connects to your broken piece. anywho the hose should run around back of your motor over to your fender to the front of your car and connect to your cruise control module. the third picture i either am not sure what your asking or im not seeing what your asking.

Kolby

Awesome response! Would the cruise control module happen to be that thing beside the distributor? Ive been wondering what that was. Here is the hose I was referring to in the last photo. Thanks again for the help.

hose.jpg?t=1295301237

Kolby

Also, I will have to snap another photo of the hose that is already ran to the plenum to see where it really goes.

Twin_Turbo

iTrader: (25)

pic 2, the vac t w/ checkvalve is broken, one side has the niipple broken off. That side goes to the thing in pic 3. The pre check valve fitting goes to vac reservoir the other to the heater control and the cruise servo

The FPR reference hose in pic 1 goes on the port above it in the pic.

t-topsavage

ok so i took some pictures im not sure how clear they will be. this is my first time posting pictures so bare with me pls. its a learning experience. the first picture is how i have my car set up comparitively to your car. the second picture the round thing sitting to the left of the radiator on the left hand side of the car with the little hose popping up on the right next to the hose that wraps around to down under it is the cruise control module, also same little hose that wraps all the way around and connects to the plenum on the left hand opening. ok and now for your third picture. that hose goes to the same wiring harness location and dissapears into the wiring harness like the little one that your missing on your splitter. no worries I took two pictures to show where

t-topsavage

and this is where in the 3rd pic i submitted my finger is. underneath the wires where the two little black hoses are, those are the two that I have mentioned.

t-topsavage

but then again you have a gta and i have a camaro.. respectively damn close to the same thing with minor differences. I hope my pictures help tho.

Kolby

Thank you very much for the information and pictures! I will try to get these right in the morning.

camaronewbie

Pic #3 - there should be two vacuum lines that exit the firewall just to the right and bottom of the heater box - that vacuum line goes to one of them.

Pic #2 - the broken nipple - that runs to the other one.

Vacuum line comes out at intake to that check valve that's broken. Vacuum line runs to driver side fender, and to the vacuum ball (mystery orb) that is below the driver side headlight. The other side of the check valve (broken side) runs to the heater controls inside the car. The check valve makes sure that the vacuum doesn'y "escape" back into the intake. The orb 'collects' vacuum, that way the heater controls inside the car still have vacuum even when the engine isn't making any.

The line in pic #3 comes out from the heater controls. When the selector is in the WARM position, that vacuum line opens that round valve with the coolant lines running to it, and allows the warm coolant to enter the heater core so that you get warmth inside the car. When the selector is set to COOL, the vacuum is diverted away, and that coolant valve closes, and so the warm coolant is closed off from the heater core, so that you don't have warmth inside the car (like when you are running the A/C).

Hope that helps.

Kolby

Thanks for the info everyone.

Kolby

hosenow.jpg?t=1295468289Can Ttopsavage or anyone else tell me where this side goes?

camaronewbie

Should run to one of the two vacuum lines that exit the firewall just to the driver side of the heater box. One line goes in to the heater controls, one side comes back out to the heater diverter valve.

Kolby

I was confused but after looking I got it. Where does the hose coming from the fuel regulator go?

Kolby

Also, on the throttle body, the hose on top run into the valve cover and the middle hose goes to the canister? Or is this wrong. I also still need to know where the line coming off the regulator goes.

Elthesh

I want to say that the middle hose does go to the cannister, but... Without a picture or me going out to my car, I can't say. I know that one of the hoses off the throttle body came factory on my car with a larger diameter hose going into the TB and then they added an adapter then plugged in a smaller diameter hose into the adapter. Kind of like if whatever one end plugged into was, say, for example, 1/4 inch and the opposite end was 1/2 inch so they spliced two different hoses together. Could be different on yours as it is 3 years older than mine. If you have a long hose coming off the cannister, it probably does go to the TB.

Also, I see you replaced the broken check valve. If that isn't a brand spanking new piece, you REALLY should go buy one. They crack ALL the time due to age, heat, poor design, whatever. I've replaced them about 3-4 times on a few cars, 2 Trans Ams and a Camaro. They use the same lousy thing on my 99 TA too. When it goes, it takes out the AC door control until you replace it. They are about 5 bucks and most always in the Help! section of the auto store. They will be unlikely to ever find it in the computer, so don't bother asking there. Just check the Help cards till you find one.

Honestly, I'd buy a 2nd one even if that is brand new and keep it sealed in the glove box, as well as a second heater diverter valve. That big mushroom thing near the TB. That worthless piece of crap falls apart all the time. My poor TA has needed, lets see, 3, possibly 4 in the past 8 years. They leak, crack at the hose fittings, whatever. Horrid things. Keep a new spare with you, trust me.

Kolby

I actually didnt replace the check valve I rigged it but after reading how important it is, its sure to fail. The last photo I posted was actually another members. Thanks for the help I guess I will have to go buy one. Do you know where the hose coming from the fuel regulator goes?

Elthesh

The fuel pressure regulator under the plenum? I'm pretty sure it should be connected exactly as it is in the photo that isn't yours. The one showing the intact check valve I was just talking about.

If you meant something else, I'm not sure exactly what you're referring to then. Oh, and yes, replace that check valve. Buy two of them. I can't find the Dorman part number, but if you can't find it in the help section, look for this part which looks like they updated and changed the valve some.

15-50568

I wonder if they finally changed the design as that part is listed for both my 91 and 99 TA now.

Ahh, found it. 47150 Dorman part number. Either will work. The AC Delco may or may not be a better design. Get 2 regardless, the things are practically free from my quick price check on em. May want to replace the vacuum hoses connected to those parts too. The hoses usually dry and crack, especially around the fittings. I did a hose changeover a few years back. Not necessary for you unless you think you need it, but it can't hurt if you're messing around there anyway. All those old vacuum hoses never get changed and fall apart leading to hidden vacuum leaks.

Kolby

Is the fuel pressure regulator black or gold? I thought the gold thing under the middle of the plenum was the regulator, and the black thing under the very back of the plenum was the egr valve.

Elthesh

The black item at the far back with the lil screws around it an angle is the fuel pressure regulator. The gold item under the plenum around the center is the EGR valve. There should be a loose hose around there somewhere. As for where it goes... I'd need to go look at mine, but I don't recall it going all the way to the cannister. It's just a vacuum hose to open and close to diaphram in the valve so the hose for it should be near the back somewhere.

If yours is the same as mine, you should have an EGR solenoid that bolts up near the rear area of the intake, near those other hoses that is where the hose comes from for the valve.

Kolby

Thanks for clearing up which is which the info. I will go check around that area again. Also, would a broken check valve keep my car from starting?

Elthesh

It is a vacuum leak, but I don't know if it would cause a no start... I remember a long time ago, I had some kind of problem when it was disconnected, but that may only have been rough running. I don't believe it caused me to not be able to start the car.

Kolby

Diagram.jpg?t=1295638396
Is this right? Still trying to figure out where the blue hose goes.

Kolby

Now I'm even more confused. I was looking at another diagram and it looks like it had the cruise control hose going to the plenum (spot where I currently have the check valve hose on) and not the check valve. Is this right? If so where is the hose from the check valve supposed to go.

Pocket

iTrader: (24)

https://www.thirdgen.org/forums/post...48-post12.html

Kolby

Thanks Pocket. What is the EGR SOL? Also, what is the name of that black thing in my third picture? Thanks to everyone who has tried to help.

Pocket

iTrader: (24)

EGR sol applied or restricts vacuum in certain conditions determined by the ECM for a more direct EGR control

3rd pic is your heater core diverter valve. It bypasses coolant from the core whenever you're HVAC setting is not in "heat" mode so your AC is as cold as possible. Deleting it doesnt seem to affect AC temperature or core longevity

Kolby

Thanks. I still cant identify the EGR sol though. I also have another question. If you are facing the front of your engine, the left side of the radiator ,very top, has a hose coming from it. I believe it went to the air system which I took out. Is this correct and what should I do with it?

Thanks for the information everyone. I started some work on this car over a year ago because I wasn't having the best of luck with it. As I dug in I found and also created other problems and I didn't have the money or experience for everything I needed so I forgot how a lot of thing went. I now have everything put back together aside from a few hoses and I hope to start it this weekend. So thanks for baring with me everyone.

Kolby

If that is where the egr sol (which I still don't see) plugs in, where is the check valve hose supposed to go?

Kolby

sol-1.jpg?t=1295729146
Is this the EGR solenoid?

Pocket

iTrader: (24)

Sure is. Looks a little worse for wear though

Kolby

I'm sure I will end up replacing it when I replace the check valve. For now I would just like to get everything in the right order. I found where it goes but I'm not sure where the hoses go. I assume another little hose goes underneath the hose that you can see. What about the bottom of that rubber piece? It has a square opening and a circle opening. Does another hose go there? Thanks for the help pocket.

camaronewbie

Radiator - larger hose runs to the heater box in most cases. Yours probably went to a heater diverter valve maybe, and you thought that was part of the AIR system.

Smaller hose (looks more like a tube really) is the overflow to the canister.

There's nothing between radiator and the AIR system, radiator is liquid, AIR is air.

Kolby

I found this picture and it helps. I suppose it goes to the egr sol and throttle body but I don't know where the other side is supposed to go after it splits. Can someone shed some light?

Kolby

Okay. I think I have most of this figured out. The only thing is that I have a little emissions tube coming out of the wiring harness by the firewall still with nothing going to it, and a line coming of the egr sol with nothing on it. Help?

ninetyone

iTrader: (2)

the hose in this picture is the Diverter valve vacume hose. Basically when you switch your heat on this hose helps the valve switch over inside and let some of the coolant flow into your heater core , other wise the coolant flows directly through the valve and down into the engine oil cooler. I would have to check where the other side of that hose goes.

ninetyone

iTrader: (2)

Your fuel pressure regulator hose definately hooks up to the plenum. I would worry about that first.

Kolby

Thanks man. I meant to update this post on Monday saying that I got my car started for the first time in a year in a half. So thanks for the help everyone!