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.
I removed my air snorkels to install a serpentine belt last month and I noticed the two tubes that attach on top of the air snorkels had oil in them, as well as the throttle body. I wiped everything out, but I imagine some oil is escaping in the PCV valve system and being dumped into the intake manifold. Luckily it's not a true direct injection vehicle or there would be no port injectors to spray on the intake valves (cleaning them). But I am starting to wonder if anyone has installed a catch can on one of these cars. The PCV valve is under the manifold and hard to get to (2.5 hours labor). I looked online and I found one that supposedly fits our car on EBay, but it doesn't look all that promising...looks more like a universal setup.
Also has anyone ever Seafoamed their car? I haven't tried it on the LS460, but that might be an alternative to installing a catch can. But I imagine I'm losing maybe a half a quart into that throttle body in 5,000 miles. I don't like the thought of that sitting in my intake manifold and heading into my cylinders. I've talked to some people and they swear by the catch can....I've talked to others and they say they wouldn't bother, that a little oil isn't doing any harm.
I have a catch can installed on my Dodge Charger SRT (HEMI motor) and it works well...... No oil in my manifold and the can catches all vapors keeping the intake system clean. I have worked on other HEMI's that did not have a CC installed and the manifold was filthy.
I have not seen any LS owners installing them but it does make sense to install one...... Cost should be less than $200 and it should be easy to install. The problem with a catch can is finding a good location for installing it due to the accessibility of having to empty the can every 4000-5000 miles.
Luckily it's not a true direct injection vehicle...
Ahhhhhhh, but it is a true direct injection engine (D4S). It has 2 injectors per cylinder. It has a direct injector & and port injector. The direct injectors access the cylinder from the top inside of the cylinder, between the V's, up under the intake manifold.
As I understand, the direct injectors inject continuously (for every intake stroke). But the port injectors only activate at some heavy throttle / rpm threshold.
Ahhhhhhh, but it is a true direct injection engine (D4S). It has 2 injectors per cylinder. It has a direct injector & and port injector. The direct injectors access the cylinder from the top inside of the cylinder, between the V's, up under the intake manifold.
As I understand, the direct injectors inject continuously (for every intake stroke). But the port injectors only activate at some heavy throttle / rpm threshold.
Jason Oliver
Interesting, I didn't realize the direct injection portion of the fuel system was always activated.
WOW! When I saw this topic, I thought it would be an interesting thing to talk about with plenty of replies (positive&negative) so I assume nobody has installed a Catch Can on their LS.
Over on most of the "Muscle Car forums" almost everybody installs a catch can as a first modification.
So, from Jason's post (above), I see that we have the DI/PI combination, which is definitely better than DI only. I guess the solution in this case is to floor the car every so often to activate those port injectors
I found this topic while searching to see if anyone had installed a catch can on their 460. It was a very common thing on the Cadillac forums, but the CTS engines are DI-only, so a catch can makes sense there.
Those poor suckers with an IS250 (er... like me) have had some real problems with their DI-only engines. Lexus rebuilt my engine once already but it's a repair, not a fix - it will happen again!
I'm just reviving this topic because I just watched this video, which explains the various injection systems very clearly.
So, from Jason's post (above), I see that we have the DI/PI combination, which is definitely better than DI only. I guess the solution in this case is to floor the car every so often to activate those port injectors
I found this topic while searching to see if anyone had installed a catch can on their 460. It was a very common thing on the Cadillac forums, but the CTS engines are DI-only, so a catch can makes sense there.
Ahhhhhhh, but it is a true direct injection engine (D4S). It has 2 injectors per cylinder. It has a direct injector & and port injector. The direct injectors access the cylinder from the top inside of the cylinder, between the V's, up under the intake manifold.
As I understand, the direct injectors inject continuously (for every intake stroke). But the port injectors only activate at some heavy throttle / rpm threshold.
Well unfortunately I've been usuinquite a bit of oil lately and took a look inside my intake - quite a bit of oil has been escaping past my pcv system into the manifold, filling it up.
I'm seriously considering installing a catch can to keep the engine from having to ignite all that oil (seen too many problems because of this...EGR, valves, misfires, bad cats, failed 02 sensors). So if there's anyone that has done this feel free to chime in.
I think the pcv valve is buried under the intake but there appears to be a hose that comes from it that goes right into the front of the intake to the upper right of the throttle body. I imagine I can disconnect that hose and splice a catch can in right there??
<div style="text-align:left;">Well unfortunately I've been using quite a bit of oil lately and took a look inside my intake - quite a bit of oil has been escaping past my pcv system into the manifold, filling it up.<br /><br />I'm seriously considering installing a catch can to keep the engine from having to ignite all that oil (seen too many problems because of this...EGR, valves, misfires, bad cats, failed 02 sensors). So if there's anyone that has done this feel free to chime in.<br /><br />I think the pcv valve is buried under the intake but there appears to be a hose that comes from it that goes right into the front of the intake to the upper right of the throttle body. I imagine I can disconnect that hose and splice a catch can in right there??</div>
what one is good? I imagine this would be installed in the same line going into PCV filter?
I think you'd need only one. You'd have to splice it in off of the PCV valve hose, and the PCV is very hard to get to. But the hose coming from the PCV valve is to the right of the throttle body, heading to the intake. I think you can tie into it there.
I think you'd need only one. You'd have to splice it in off of the PCV valve hose, and the PCV is very hard to get to. But the hose coming from the PCV valve is to the right of the throttle body, heading to the intake. I think you can tie into it there.
I was just talking to a racing shop- Erick's racing at Baldwin Park. He said you don't need it unless you are driving a high boost engine in a racing car. Regular vehicles don't need it. Even for racing cars, not all racing cars need it. I asked him if you put it in line with PCV filter. He said no. You install it with valve cover, or something like that. He said the oil catch can doesn't keep the engine clean.
I think he's wrong. On my 4 cylinder camry, I can see the PVC gets gunked up after a while. I spent $125 for MotorVac carbon clean on my 190K miles Camry. The brought the car back to life. If I had a catch can, I don't think I would ever need the carbon cleaning done. I would still put fuel system clean like BG44K or seafoam in gas tank however.
I’m looking at installing one but haven’t found a placement for it.
Look at Radium Engineering or ADD W1 catch cans. You can also look at Air oil separator which is a better system but I doubt put engine bay will have space for it.
12-07-16, 01:47 PM
Anyone using an oil catch can?
