When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
As title says, I removed my manifold in order to do a PCV swap. Current system is shot, needs to be redone, yada yada yada. That's not the topic of this post. I had two questions. Number one: while I have it all out, is there ANYTHING (reasonable) I can replace/upgrade/modify to make the car run better? It was a huge PITA to get that thing out, and I don't want to have to go through the experience again any time soon. I already have a new OPSU, so that's taken care of. Anything else I should do while I have the opportunity?
Second question: I broke something while I was pulling it out. Well, it may have already been broken. Not sure. Point is, it's broken. I've sent pictures to my dad, who's worked on cars for 30+ years, and he showed it to an LS1 aficionado he knows. Neither of them have any idea what it is. I'm really hoping someone here can help me out.
This is the part that broke off. It has two little hoses coming off it. One ran to another unidentified part, picture to follow. The other ran to an electrical connector that plugged into the back of the manifold. The connector had two hoses running from it, the other stretched around by the passenger side and I couldn't follow it. One side of the piece says "DELCO REMY", the other side says "DR272". I googled that, and got "Condensor, Ignition". Which is no help to me.
More views of the same part.
This is the part it broke off of. That's really the best view I could get of it. It's deep under the cowl on the driver side. That little hose on the top is where the first part broke off.
Nothing you need do with your OE intake unless you swap a better one on.
The second issue you asked about is just the AIR injection system for your car emissions. Most of the time, this system is yanked out anyway.
Shoot, I apologize for not including the car. I kinda spaced out. Yeah, it's an '02 Camaro Z28.
I'll be putting a new exhaust on the car in a couple weeks, and will be getting it tuned then. Would it be safe to drive it for a week or two with no AIR system, untuned? How difficult is it to rip out?
That small plastic line that runs to the back of the intake is a vacuum line, if you remove the solenoid (that part you're holding) you'll need to plug that line otherwise you'll have a vacuum leak.
That small plastic line that runs to the back of the intake is a vacuum line, if you remove the solenoid (that part you're holding) you'll need to plug that line otherwise you'll have a vacuum leak.
Alright, thank you. What are the implications of removing that line?
Removing the AIR will cause a check engine but the car will be fine just get it tuned out when you get the chance. Nothing to stress over. Plug the vacuum line with a cap from an auto parts store and you'll be fine.
The PCM does an occasional test of the A.I.R. system. During the test, it looks for a change in the upstream O2 sensors. No change, the test fails and lights the SES light.
When you have it tuned for the new exhaust, have the test tuned out.
Until then, it's OK to drive it with the system disabled but be aware the light will be on because of it. It will not cause any running issues.
Everything that came out of the car. I'm pleased with how much cleaner it looks now. Waiting on block off plates, then I can start re-assembling it. In the meantime, I'm a little concerned about my heads and ports:
Should I be concerned? I tried getting some of the caked oil out of one of them, but it's really on there. Would need a wire brush, then I risk knocking it into the engine. There was definitely oil getting in there and under the valley cover, my knock sensors and the wiring harness are shot. I accidentally shattered one of the connectors pulling it out.
So... should I be concerned and do something about this, or just leave it for now?
Unless you are pulling your heads I would leave it be. If you clean that gunk up while the heads are installed that gunk has only one way out...into your cylinders.
The PCV valve is the reason that gunk is in there. Run a catch can with your PCV system and that will stop most of that build up from happening.
not exactly sure if it's worth getting your car tuned for just an exhaust, unless you're getting it really cheap or for free. i would at least wait to pay for a tune until you have full exhaust done how you want it done & all of your intake upgrades done
Is that the logical next step after exhaust? Intake manifold/TB/MAF? Gonna be awhile before I can get the cash for that after shelling everything out for my exhaust.
Is that the logical next step after exhaust? Intake manifold/TB/MAF? Gonna be awhile before I can get the cash for that after shelling everything out for my exhaust.
I did an intake and ported TB, but left MAF stock - descreened. Runs fine like that. The way your heads looked under the intake is the way mine looked. MadFirehawk86 is right - if you try to clean it in place, it goes into your engine. I ended up pulling the heads - made a good excuse to port them "to make sure they are clean".
Since you already did the PCV swap, you have addressed most of the root cause. THe catch can will do the rest.
pull heads if you want to get some work done to them - not worth effort imo unless that is the case ... otherwise, as stated above, seafoam works wonders - cleans better than most believe or realize i would say - DEFINITELY does work/clean (its not some gimmicky product).
pull heads if you want to get some work done to them - not worth effort imo unless that is the case ... otherwise, as stated above, seafoam works wonders - cleans better than most believe or realize i would say - DEFINITELY does work/clean (its not some gimmicky product).
I was convinced to seafoam my 98 Avalon (160k on the clock) after I took the intake off to change valve cover gaskets. The intake was pretty badly caked with old oil residue to the point you could not see any internal metal surface area. During the seafoaming process and the drive you are supposed to do there after caused the car to smoke substantially (which is normal). I have not had the intake back off since but have piece of mind that those surfaces areas are a heck of a lot cleaner now.
03-01-2015, 02:13 PM
So I took my intake manifold out 
