91 Rs 305 TBI all stock

So i have two problems right now with my 91 Rs.

The first is this awful noise that i cant seem to get rid of.
I'm not sure what exactly it is or how to go about fixing it.and it really sucks because it makes my car sound really really old(which it is but nobody has to know that)
First i thought it was my shocks then i thought maybe the motor mounts but anyway here it is, it happens only when i turn my wheel to the right.

Noise Video
http://www.youtube.com/watch?v=Ha8H39oEMmI
The car has been crashed from the front by the previous owner but nothing extreme just a broken bumper, im not sure if that could be the cause.

My second problem that i still haven't fixed is this vacuum leak.. I tried plugging it with a screw everything( i have no clue where its supposed to plug into...and it still causes my car to choke every once in a while(on start up) unless i give it gas for a bit.. Im hoping anybody on here with a camaro could identify the line and help me out a bit.

The hose is sucking in air so i don't know if its messing with my air/fuel ratio.Its located on the drivers side next to the washer fluid reservoir, i try to show where the hose leads to in the video.Im really close to just taking it in to a shop and spend some money =\..i really don't want to because all i have to do is find where that hose is supposed to go.. any help on this would be great.

leak video
http://www.youtube.com/watch?v=M54rm8rVzV8

 

That hose being disconnected is definitely messing with your engine. It is hard to tell in the video, but going off memories of time spent under my hood, that hose either goes to the EVAP or the cruise control. I will try to find a vacuum diagram and post it here. That will tell you exactly where all vacuum hoses are supposed to plug in at.

It is hard to tell where the noise is actually coming from looking at a video. Does is make the noise while the front end is jacked up? One thing for sure is that it is apart of your steering system since it only makes noise when you move the wheel. Check ball joins, tie rod ends, bushings, struts, strut bearings, etc, idler arm, pitman arm, or anything else steering related. If you have access to a stethoscope, pinpointing the source of the noise would be a breeze with a helper.

 

The vacuum hose ...

There are several vacuum lines there, like mentioned evap canister and cruise control.

There is also a vacuum ball under the evap canister - it's about 6in in diameter - it 'holds' vacuum for the HVAC controls. Make sure there is a vacuum line running under the evap can to that orb or ball (some of us call it the "mystical orb").

 

I would almost bet that the vacuum line goes to the vacuum ball located in the fender under the evap canister. The squeaking/creaking/screeching sounds like a lower ball joint. Try lifting the front wheels off the ground and see if it still does it. Also try bouncing the suspension up and down to see if it does it also. Pretty common for ball joints to sound like that from lack of lube and wear.

 

When the car is raised up on stands i cant reproduce the squeaking, it has to be on the floor. Can i just use greese to lube it up and fix it? or am i going to have to replace the whole piece? I wouldnt even know where to start when it comes to buying a new setup.

My car has no cruise control so i know that's not it. Ive searched everywhere for the so called vaccum ball but i dont have one.. Under the evap canister there is nothing there. Could i just buy a vacuum ball and mount it underneath the canister to get rid of the leak?(i think i saw one for sale on thirdgenranch)Or is there more involved like other parts to it?

 

Update on screeching
So today i decide to lube the joints...sadly the squeaking still remains but i did discover something wrong with the bushings in this video.

http://www.youtube.com/watch?v=tOGOwmvGn3Y
Could that be the source of the squeaking?How expensive is it to replace them?

Update on Leak
I got under the car again in search of the vacuum ball and looked under the canister only to find nothing. Heres the picture of how my canister looks underneath and a view from the top.

Under



Top


As u can see im determined to fix these issues so any help is welcome.

 

you might try putting a screwdriver to different part and putting it against your ear ( or a mechanics stethoscope if you have one ) against different part while someone turns the steering wheel. BEING VERY CAREFUL TO THE SCREWDRIVER OR SCOPE AWAY FROM BELTS, FAN BLADES AND SPARK PLUG WIRES lol When you find the faulty part you will definitely hear it.

 

Hello J0hn-J0hn08!!

Your vacuum leak can be fixed by plugging up the line (with a golf tee), however if the vacuum is required by/for something, it obviously won't be getting it!!

You said the car doesn't have cruise control, and of course you did verify that by looking at the multi-function switch, right? The reason that I ask this is, it's possible that the vacuum ball is missing due to the PO's accident!!

Also, maybe the cruise control didn't work and the PO was in the process of removing it!!

Barring all the previous ideas of mine, the only thing vacuum related in that area is the EVAP cannister, or the vacuum ball, nothing else!!

You could also remove the tee junction, and replace it with a coupler, that way you won't have the hose just hanging there!!

Best of luck!!

 

Ive actually tried plugging the hose in the past with a screw but for some reason my car ended up choking either way even after i sealed it. Tomorrow i will definitely try plugging it again with a tee as a temporary solution.(just incase the screw didnt do the job)or there's always the chance of another leak somewhere.

On the bottom of the evap canister i see two slots for 2 screws, could that be where the vacuum ball is supposed to be? I also considered that the accident the PO had might have knocked it off.

What exactly does that ball do? Kinda want to know what im missing out on at the moment. I know im wasting more gas because of that leak so i want to get it fixed ASAP. The car hesitates to accelerate sometimes but i am assuming that's because of the leak.

When i got the car i had the whole steering column replaced with a new one, even had a new key made for the car because of that i am not 100% sure if there was any cruise control switch... i would say i am about 95% sure that there wasn't.

I cant seem to find the vacuum ball on autozone,,so im guessing id have to get it through thirdgenranch after all or get lucky enough to find one at a local junkyard.

 

Didn't realize how hard it is to find a vacuum diagram lol. I don't have access to my repair manual right now either. You car should have the vacuum and emission hose routing stickers underneath the hood. If not, here is the emission routing, I will try to find a vacuum diagram for you as well.

 

Yep - your missing the ball. I'd check ebay or the local JY or Thirdgenranch or classifieds here if you want one.

Or, Jegs, Summit, etc. all sell aftermarket vacuum cans.

The ball just 'holds' vacuum so that in the event of a low vacuum condition (like when you first accellerate), there is still vacuum being 'held' in the system for the A/C controls to be able to work. It's not a priority issue - without it the only downside is that the A/C vent controls won't always change vent selection until there's enough vacuum present for it to work.

If you follow that vacuum line, it should come out at the back of the intake manifold - you can just pull the line off the connector and put a vacuum cap on the connector, and leave the line out for now. Box of various sized vacuum caps avail at any auto parts store for about $4.

 

Thanks for the help guys, that diagram helps quite a bit. I myself have been looking for the other diagram with no luck though.

Today im gonna go look for the ball at a junkyard if not im probably gona have to shed the 16 bucks to Thirdgenranch to get it shipped to my house.Last time i went Junkyarding i found a "ford camaro" so im not expecting much.


Looking at the diagram i noticed that i don't have the "vac motor" and im wondering if that could be causing another leak? I know that under the tbi pan theres 2 slots for 2 hoses and i only have one connected. One slot has a hole and the other is just shut. ( ill try to post some pictures later today)

From what i read around the forums not having a vac motor just makes Ur car warm up slower? Ive actually tried searching for that part on different auto part places with no luck.. I searched thermac valve, thermac motor, vac motor and nothing. I actually personally asked autozone about it and they said they don't sell that, but that its not needed.

Il post an update later today hopefully i find me that ball.

 

Hello J0hn_J0hn08!!

If you don't have cruise control, you shouldn't need the vacuum ball, unless as camaronewbie says it holds vacuum for the A/C controls!! There is supposed to be a separate vacuum tank on the firewall for any A/C control vacuum that is required, although, this may depend on the year!!

My two Camaros with cruise control have the vacuum ball, one has A/C, and the other one doesn't!! One is auto, the other is 5 speed!! My other Camaro (a 5 speed also) doesn't have A/C nor cruise control, so no vacuum ball either!!

The hose in your video looks like its attached wrong anyways, the hose should come from behind the engine from the manifold, then snake around past the brake booster, down the side of the fender, and then tee junction in front of the windshield washer bottle, one end goes to the vacuum ball, and the other goes to the cruise control servo!!

In your video, it looks like it tees to the air cleaner, or at least towards it!!

 

Sorry for the 2 day delay guys been busy with college among other stuff.

So a friend and I decided to hit up the junkyard for the vaccum ball, we found it along with a few other goodies that i needed for my rs.



We bolted it on, and even found the vaccum motor/valve w/e for the thermac system. I got everything for about 27 bucks which wasnt so bad seeing how i was gona pay 5+11$ shipping just for the ball.





While browsing the birds and camaros we noticed that some of them had this piece that my car doesnt have and im hoping someone can identify it for me and tell me a little bit about what it does exactly. Should i have it in my 91'? or was that only for earlier models?

Here it is please any info on this would be very useful.

After installing the thermac valve and the vacuum ball the car has been running much much better, the hesitation when accelerating has decreased a ton but the car still tries to choke at times and earlier today it choked twice on me on 2 different occasions.(completely shut off on start up)

I remember when i scaned it with an obd scanner i got a code 44 and a running lean status, what other possibilities am i looking at for the cause of these symptoms? I also notice that after leaving the car off for a while and then starting it a puff of white smoke comes out of the exhaust.


Any info/and or ideas on how to troubleshoot these issues would really help me.

Thanks

@87IROC-DAN61 Yeah my car has AC so im guessing the ball does belong on there after all? No cruise control though.

 

This is going to sound like a really stupid question, but does it do the squeak _all_ the time? Or only when sitting in your garage, on a polished concrete floor, while not rolling?

"that thing" is a cruise control diaphragm. If you don't have the little switch on your turn signal arm you never had cruise in the car.

 

Nope the squeaking happens anywhere, when the steering starts maxing out to the right it gets louder and louder.

 

And you've checked the power steering pump/belts, right?

 

yeah new belt, and full on power steering. Check out the bushing video i posted i kinda think thats the reason for the squeaking although im not 100% sure.

 

Hello J0hn_J0hn08!!

Still have any problems???