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i took my car in for service's 3 times as oil is coming out through the cap they have replaced cap and changed breather but it is still doing it , what is causing this as i am sick of taking it back and spending money on nothing that is working. their is alot of pressure in their too.

2006-10-30 20:42:20 · 8 answers · asked by Anonymous in Cars & Transportation Maintenance & Repairs

8 answers

Don`t know the year or make of your car. But in addition to the fine answers you have allready recieved, you could very well have worn valve guide seals. Have a fun day

2006-10-31 00:28:15 · answer #1 · answered by ? 4 · 1 0

I have has this problem in my 81 Ford pickup for 5 years. It would build up so much pressure inside the crankcase that it would blow the dipstick "out " of the tube, -- it would raise it up about 2 inches off the "seal" portion, - causing all the oil to blow out on the firewall! I think the people before me drove it without water at some time, and got it so hot it set the rings! (it had less than 50,000 miles when I bought it!)

The exhaust showed no "burning oil symptoms", as it did not smoke at all, -- even going downhill under compression! My "fix" for the problem was to take the pcv valve and "ruin it" by taking out the bottom portion and removing the "ball" that seals it under "pressure"! Then I disconnected the "vent" line from pcv to aircleaner, - and put on a hose long enough that I could stick it in a empty oil "bottle" in an open area on the right fender (under hood). Now the pressure blows into the bottle, and it leaves a small amount of oil in the bottle!

This didn't really cure anything, - however it doesn't blow all the oil out in 50 miles at 70mph. --- Probably the real cure would be a "light" overhaul, - one where you put in new rings, and valve guides, and valve stem seals! Up to recently it has had good bearings! I have now put a little more than 45,000 more miles on it, and I noticed that it is finally smoking a little while driving down the road! However it now gets only 150 miles or so to the quart, and I haven't checked the oil as carefully as I should have, so it has nearly run out of oil a few times in the last year, - so the bearings are now getting pretty loose! However remember that I have gotten 5 more years out of it, and 95,000 miles is not the worst you could do with a Ford. And of course I know it was a problem I inherited with the vehicle. (I bought it out of somebodys back yard for $200 - after it had been setting for 10 years!) I figure I got my moneys worth! Also I figure that I have a lot of leaks that could be fixed to slow down the oil loss, -- but I just bought another truck (that I am fixing up to drive), and plan to "retire" the Ford when the liscence runs out in Feb.), -- I don't figure it is worth doing all that work just ot park it!!

So if you want to drive the car a while, and it doesn't use too much oil, - you can do this and get a few more miles out of it! If it gets a thousand miles or so per quart of oil, just check and fill oftener! If it doesn't burn oil so that it is visible, this would work pretty good, -- note that under pressure, the crankcase will tend to "push" a little more oil into the engine to be burned also! Removing the line form pcv and routing "overboard" to oil bottle will also cut down oil being burned in engine, - as it goes in through the engine air intake system with the air-fuel mixture!

I live in the "wide open spaces of Texas", and a little oil dripped on the road doesn't hurt a whole lot, I buy the "cheap oil" at the "Dollar store", -and it isn't "bankrupting" me at $1.15 a quart. ... At least cheaper than an engine overhaul!!

Perhaps I am just "lucky", - but every time I get a vehicle fixed up "just right" --- somebody hits it and totals it, -- so then a "mechanically perfect" car goes to the "graveyard"!!!

2006-10-31 01:18:01 · answer #2 · answered by guess78624 6 · 0 0

Sounds like you have Piston Ring leakage. This pressurises the Sump and forces the oil out the breather and filler. Get them to do a Compression check.

2006-10-30 21:01:15 · answer #3 · answered by graeme1944 5 · 1 0

Sounds like the rings are worn out causing blow by,a compression test will confirm.If it is the rings,a complete overhaul or replacement of the engine is necessary.

2006-10-30 21:03:58 · answer #4 · answered by want2wild 5 · 0 0

You have pressure in your crankcase. Either your PVC is plugged up, or your engine has way too much blow by. This is due to bad rings so it would be overhaul time. The PVC is relativily cheap.

2006-10-30 21:07:35 · answer #5 · answered by Anonymous · 2 0

Go with klberry,,this would be the cheapest diagnostic to try. How many miles! Oil changes on time? :-)=

2006-10-31 01:27:22 · answer #6 · answered by Jcontrols 6 · 0 0

check ur compression test

2006-10-30 20:57:15 · answer #7 · answered by honey bear 2 · 0 0

check pcv valve, if thats not it you need new rings

2006-10-31 00:42:01 · answer #8 · answered by Anonymous · 0 0

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