PCV Valve

[XSnowkiller]

New member here and this may seem like a dumb question but,

I recently bought a 99 expedition (eddie bauer) and had a check engine light on. popped the hood and i noticed a hissing. Figured, easy, vacuum leak.

so before starting the search i degreased the engine with some detergent and the hose.

.... long story short, the leak was due to the PCV valve not even being plugged in because the previous owner obviously didn't know what it was not to mention the whole thing was jimmy rigged with Fuel hose.

Replaced assembly with ford stock part and started engine, ran like shit, forgot about the water that most likely entered in through the valve cover due to cleaning.

Vehicle runs fine now (Great actually) after idling for a while.

My question is, do i need to change the oil (just did before all this) and could i have damaged anything by starting the vehicle?

Thanks!

 

[Big White]

If you think a decent amount of water made it into the crank case, absolutely change the oil.

 

[XSnowkiller]

Yea that's what i was thinking. Thank you for the fast reply. Speaking of oil. Whats your take on best brand and type for a high miles expedition?

 

[Big White]

Yea that's what i was thinking. Thank you for the fast reply. Speaking of oil. Whats your take on best brand and type for a high miles expedition?

IMHO, brand does not matter as much if meets current grade specs (SN?) and gets changed on a regular bassis.

 

[Captain Morgan]

Not to be a ney-sayer . . but if you were just using a small sprayer set to "spray" I seriously doubt you had enough water to make any difference (not a decent amount) to begin with, not to mention that it has long since and quickly evaporated from the engine heat.

THIS is what I have in there now, but when it gets colder I'll go with 5W-20.


FILTER



.

 

[XSnowkiller]

That's what i was thinking and because of the pcv valves location there are two big hoses that were laying over it, so i didn't think too much could have gotten in but like i said it idled like shit for about 10 min and now feels great.

 

[Captain Morgan]

I went camping this weekend, and came back covered in mud and logging road dirt. On the way home I stopped by the car wash and gave it a good bath, including under the hood. Sure, it sputtered on the way home a bit, so I just let it idle while I unloaded the rig and then turned it off. This morning, perfectly fine.

IMHO the fan moving air past the engine causing swirling heat dries out most everything pretty quickly.

But if you're engine oil looks pretty bad and if you're convinced it's way past the time to change it anyways, then why not?

 

[splintrcel]

as long as ur not a moron and dump coolant all over your engine like i did, the water should all evap.

 

[Thermo]

Spraying down the engine is not something that I would recommend as you guys found out with the motors running like hell. What happens is water makes its way down in the plug holes, allowing the spark to bypass the plugs, leading to the troubles you were seeing. This isn't too bad if you are only using a garden hose (still seen this mess up a few trucks). I have seen things go completely terrible with someone that used a pressure washer to clean their engine. You can use the pressure washer, just don't spray the top of the engine. Yo ucan do the sides and front, but don't get between the valve covers. You are begging for issues. The heat of the engine is enough to cause the water in the plug holes to evaporate away and this will clear up the rough engine over time.