pcv/crankcase ventilation issue and/or bad head gasket. UPDATE!!!

[uneverkno]

pcv/crankcase ventilation issue and/or bad head gasket.

Dont mean to keep bugging you guys but ive got another problem..... I took the stang to the store this morning, i get down the road with not a car in sight. So i run it up about 5k rpms in 2nd and and shift to 3rd. I look in my mirror and theres nothing but white smoke everywhere. The temp shoots up to the red line and drops down to about the 240-250 range and drops a little more by the time i get to the house. I let it cool off and check the antifreeze and there nothing in the radiator(checked it last night and it was full)

I hop on here and do a quick search thinking i might have a blown head gasket or bad intake gasket which i still think i have done. I run across vristang's post saying it could be a possible pcv/crankcase ventilation issue if there is oil in the throttle body. I go out to check that and sure enough theres oil running out of the hose that attaches to the throttle body. I know this would cause smoke but wouldnt cause the loss of coolant.( i think) So my question is, does this sound like i have a blown head gasket? Car runs fine, no power loss or driveability issues. Also, how do i fix the pcv/crankcase ventilation issue? Thanks in advance.

 

[RYC CUKR]

If you haven't already go ahead and change the PCV valve, grommet and little metal screen filter at the back of the intake. If your PCV valve or the metal screen is clogged up it can cause the everything to be drawn into the TB instead of the intake via the PCV.

Your other problem sounds like an HG or intake gasket. Do a compression test to see if that can narrow it to the HG. If the compression test is OK I would do a leak down test. That can be a more definitive test than the compression test is. But if your blowing white smoke it sounds like a HG prob.

 

[vristang]

uneverkno -
It sounds like you have 2 different problems starting to show up.

A cooling system pressure test will help to tell you if there is a leak in the cooling system
The pressure test and leakdown test suggested by RYC CUKR are good suggestions too.

I would focus on the head gasket issue first, as this is more dangerous than a pcv issue.

Which hose did you find was wet with oil?
If replacing the pcv components doesn't help, then some more elaborate fixes will need to be done.
Has the valve cover baffle been removed?


jason

 

[uneverkno]

The oil was in the tube that runs from the valve cover to the throttle body. I dont remember if the baffle was in place or not. The pvc, grommet and screen are new. We replaced them when the new engine went in about a month ago.
The heads are coming off for a set of p heads, so i guess ill find out then if there blown or not. I dont drive the car much ( 50 miles since putting the new to me engine in), so it will prolly set till i get the heads.

 

[vristang]

If you pull the oil fill cap and look down the filler tube you will see the baffle plate. It will look like a flat piece of metal.
If you see the rockers then the baffle has been removed.

Installing a baffle will help.

come back and let us know how the HG swap works.

jason

 

[uneverkno]

I think i might have found my problem, but i wanted to check with you all to see if im correct before i waste money (lol). i pulled the upper intake just a few minutes ago, and when i took off the egr spacer from the upper, a bunch of water came out. So then i pulled the pcv valve and it its full of milky oil. Then i checked the lower intake bolts and they were not tight at all(you could put a socket and ratchet on em and turn them with little force)

So with the lower being loose, it would let water into the lifter valley correct? Thats why the pvc has the milky oil in it, or am i way off? Also the cause of my water loss. There isn't any under the valve cover(pulled it to) So if this is the problem what would i need to do? re-torque the lower, drain the oil and run fresh oil through it and re-drain again? Or do i need to buy new lower gaskets too>? Thanks in advance.

 

[Modular2v]

it is normal for it to be a little milky

 

[uneverkno]

The grommet was full of it, and when i got the upper off, i flipped it over and it was wet inside. Also the vacuum line that runs to the vacuum tree had some in it as well.

 

[Modular2v]

have you done a leak down test?

 

[mob]

Retorque your lower intake, change your oil right away, and do a compression check.

 

[Aryan15]

Is it possible the coolant going through the EGR spacer leaked into the intake?

 

[uneverkno]

No the coolant lines for the spacer are blocked off.

 

[Aryan15]

I would pull the lower intake and replace the gaskets. You don't want to have to go back if it still leaks. Then you can shop vac the lifter galley of any residual coolant.

 

[86bluecobra]

i agree with doing the oil change right away. your theory of the coolant getting into the lifter valley is quite plausible. if the re torque doesn't seem to work then you will have to replace gaskets.

 

[uneverkno]

I drained the oil a little bit ago and its not milky. So is it safe to say its not a head gasket?

 

[Daggar]

Please remember to keep your related issues in a single thread!

It is counter productive to create a new thread for each and every twist in a story and makes thread searches useless.

Start a thread and continue to use that thread until the issue is resolved. It's also good manners to post your final solution so that others can see the problem AND fix.

-- Threads Merged --

 

[uneverkno]

My bad Dagger...

I got everything back together, and we started it last night. It idled fine, but the water pump started making noises, and i noticed that there was a ton of water running down the passenger side of the pump. I shut the car off and checked the oil and it was a little milky. Water was still coming out of/around the pump.

It looks like its coming out of the timing chain cover, also i noticed a bolt missing from the same area as the water was coming out. I tried to put a bolt in it but its full of silicon. Would this let water into the engine as well? This thing has me lost. .

I checked the oil just a few minutes ago and its not milky but you can see some milky oil on the rockers

What do you all think it is?

 

[vristang]

Sounds like you need to pull the water pump and timing cover to replace the gaskets.

If you are really missing a bolt, then you should find a replacement.
A missing bolt will cause leaks.

 

[uneverkno]

UPDATE

i got it back together. i put a new water pump and gaskets and started it up, It runs fine but the oil is a little milky, not bad so im going to changed it again and see if its still leaking water or if its just what was left in the pan.

 

[vristang]

^^That is to be expected.

It isn't a bad idea to do a 'rinse' oil change with a cheap filter and oil.
Then do another oil change with the good oil and filter you plan to run.

Water in the oil will hose up your engine pretty quick, so it's worth the time and cost.