98 ls400 smoking real bad after pcv replacement
03-21-14, 02:46 PM
#1
98 ls400 smoking real bad after pcv replacement
I assume the problem is with the valve itself as that is all I changed other than the starter which was done at the same time however if I plug the rubber hose with a plug and leave the valve to vent to the atmosphere the no more smoke which is what confuses me as there is not an obstruction in the intake side of the opposite valve cover on to the air box all is good but when connected it sucks massive oil from the crank case and the valve appears to be working as it should so I am baffled a bit on this one
It is a parts store valve but one would think this is a fairly universal part although Monday I will stop by Toyota and see if I cand get an oem one but I;m not holding my breath at this point.
Any ideas?
It is a parts store valve but one would think this is a fairly universal part although Monday I will stop by Toyota and see if I cand get an oem one but I;m not holding my breath at this point.
Any ideas?
03-21-14, 02:50 PM
#2
I assume the problem is with the valve itself as that is all I changed other than the starter which was done at the same time however if I plug the rubber hose with a plug and leave the valve to vent to the atmosphere the no more smoke which is what confuses me as there is not an obstruction in the intake side of the opposite valve cover on to the air box all is good but when connected it sucks massive oil from the crank case and the valve appears to be working as it should so I am baffled a bit on this one
It is a parts store valve but one would think this is a fairly universal part although Monday I will stop by Toyota and see if I cand get an oem one but I;m not holding my breath at this point.
Any ideas?
It is a parts store valve but one would think this is a fairly universal part although Monday I will stop by Toyota and see if I cand get an oem one but I;m not holding my breath at this point.
Any ideas?
Colin
Last edited by Amskeptic; 03-21-14 at 02:52 PM. Reason: added drainage check
03-21-14, 04:36 PM
#3
03-21-14, 05:13 PM
#4
That's a good suggestion however when I did the vc gaskets the inside of the engine was spotless so I could see that being an issue if the engine was blocked up from late oil changes and the valve can only go one way as it's a 90 degree fitment not a straight like the 1st gen 1uzfe
Our differential diagnosis here is that it smokes with the valve in the circuit, and does not when the valve is not in the circuit. I am thinking that yours does not choke down at idle like it is supposed to.
Colin
03-21-14, 05:21 PM
#5
The correct PCV valve is apparently metered specifically to the engine. If yours is a bona-fida oem replacement, try another one. If it is not, try to get one.
Our differential diagnosis here is that it smokes with the valve in the circuit, and does not when the valve is not in the circuit. I am thinking that yours does not choke down at idle like it is supposed to.
Colin
Our differential diagnosis here is that it smokes with the valve in the circuit, and does not when the valve is not in the circuit. I am thinking that yours does not choke down at idle like it is supposed to.
Colin
03-25-14, 11:48 PM
#7
Lexus Champion
this sounds BOOO-GUS! - you might could get this to happen if your car had been in a flood and a cylinder was full of water and hydrolocked, but even then the starter would likely fail first
I have been building and repairing engines for 40 years and I have never seen an stuck open injector bend a connecting rod.....EVER.
I think you have a mechanic who needed to make a boat payment!
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03-26-14, 07:10 AM
#8
Actually I am a mechanic by trade which is what threw me for a loop as I knew it was running very rich over the last couple of weeks just never got around to popping the hood (been super busy) and the injector was stuck open when I parked it the previous night then on the way to work I was sitting with the key on texting some people who sent messages the previous night which let the cylinder fill with fuel then I went to start it and it sounded bad but started.
So at work I changed the injector and plugs also checked the compression which was at 70 in that cyl as well
I will just order a jdm engine and swap it out after a refresh of the seals and t-belt.
Car only had 160k on it so must have been some freak deal the only think I can think of is I changed the fuel filter a few days prior and maybe that got dirt in the fuel system somehow but even one would think the screen on the injector would catch anything left?
So at work I changed the injector and plugs also checked the compression which was at 70 in that cyl as well
I will just order a jdm engine and swap it out after a refresh of the seals and t-belt.
Car only had 160k on it so must have been some freak deal the only think I can think of is I changed the fuel filter a few days prior and maybe that got dirt in the fuel system somehow but even one would think the screen on the injector would catch anything left?
03-26-14, 03:17 PM
#14
Colin