Question about 1992 Geo Prizm

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Does engine oil circulate into the top of the engine in the valve section?

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It sure does.

Posted on Mar 23, 2011

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Yes. Oil travels under pressure through the cylinder head to lubricate the camshaft, lifters and valve train. It pools inside the valve cover and drains back down into the pan.

Posted on Mar 23, 2011


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Ford f150 4.2L 2006. Leaking oil from top of drivers side valve cover near and around either the oil fill tube or whatever the hose coming out of valve cover to air intake is???

hey William are you sure that oil was not spilled while adding?anyway it could be the grommet for the tube that is leaking the truck is now 11 years old depending on the build date on your door sticker and from years of operation and engine heat this could now be the problem was the truck overheating in the past or now the higher engine temperature would have an effect on the grommet and possibly the tube check for cracks is your truck burning oil do you see it as blue smoke in the exhaust if so the smoke going through that tube would eventually cause a liquid oil build up if it were leaking post back and we'll take it from there it's possible also that the screen in the oil pick-up tube in the oil pan is clogged causing backwards oil circulation from the spinning crank shaft rotating in to much oil that should not be there because the oil pump can't get the normal amount of oil out of the pan so a backwards circulation would exist and now the oil is filling up the cylinder head because it's traveling up through the normal holes that the oil drains through to go back to the pan and now it has no place to go it can not go through the lifters and the push rods because the holes in the push rods are to high for the oil to reach which is where it normally comes out of the rods to bathe the rockers and springs connected to the valve train and if this is an overhead cam engine the cam is not getting oiled properly is there any noise like tapping or banging coming from the motor is there a check engine light on also?

Nov 16, 2016 | Ford Cars & Trucks

1 Answer

My 2003 ford explorer sport making a sound like it needs more oil

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Use professional quality oil filters. While purchasing economy oil filters may save a few dollars, you will be greeted on cold starts by a rattling noise that continues until the engine reaches operating temperature. All oil filters are not made the same. If you were to dissect quality oil filters, such as a MotorCraft, Wix or the Napa Gold Line model, you would see an anti-flowback valve installed within the filter. The purpose of this valve is to keep the oil in the engine's top end after the engine is shut down. By doing so, the valve train is lubricated instantly at start up, instead of seconds later after the oil pump has circulated the oil from the oil pan to the top of the engine. Dissect a cheap oil filter and essentially what you will find is a filter medium akin to a coffee filter, wadded inside a tin can. If you notice the ticking sound on start up, make sure to change your oil as soon as possible and use a good-quality oil filter.
Protect the engine with the factory-recommended-weight oil to keep valve ticking noises at bay. Your 5.4-liter left the factory with 5W-20 or 5W-30 semi-synthetic oil in the engine. Use of thicker oils, such as 10W-30 or 20W-50, no matter the climate, can overwork the engine's top end as it attempts to work with the thicker oil coursing through it. Once you have installed the thicker oil, you will most likely experience a ticking noise that does not dissipate when the engine reaches operating temperature. The longer the engine is operated with the wrong oil, the louder the noise will get. The synchronizer, which controls the timing for the top end, will ultimately become damaged and need to be replaced. As soon as you discover this ticking noise and know you have used the thicker oils, have the oil replaced immediately with the recommended weight.

Aug 06, 2014 | 2003 Ford Explorer Sport

1 Answer

Today My Landrover discovery 1996 tdi 300i just had its dashboard oil light suddenly failing to go off after starting. There is a funny sound at the top of the engine which has developed and the engine oil...

The oil light is pressure not level. The noise at top of engine is most likely a valve tap. The oil isn't circulation through engine correctly. The problem could be a bad oil pump. Be careful driving the car you could cause major engine damage.

Oct 04, 2017 | 1997 Land Rover Discovery

2 Answers

My oil has instantly stopped circulating, is there an oil pump relay or fuse and if so which one is it? I do not have an owners manual. If it is the oil pump does the motor have to come out to replace?

Are you sure no oil is circulating? If your oil gauge shows no pressure it could be the gauge or sending unit that isn't working. If no oil is circulating your engine will probably not start, since the valve lifters operate on oil pressure. If it does start it will make a lot of noise as the valves and lifters slam against the cam shaft. The oil pump works directly off of gears built into the engine. It is possible to shear the brass gear off the pump. This doesn't happen very often. Another possiblity is that the screen in the oil sump tank is completly stopped up and thus prevented the oil pump from sucking up the oil.

Sep 17, 2010 | 2000 Ford Expedition

3 Answers

My engine ticks till its warm is that normal or is the rings and pistons bad or is that normal for an older high mile engine to do that?

First make sure that you have enough oil in the car by checking the oil dipstick. High mileage vehicles tend to burn more oil and needs to be checked more often. If you have the correct amount of oil, your valves may need to be looked at, adjusted and/or replaced. In colder weather oil is thicker in consistency and takes longer to circulate and lubricate the engine and components which require lubrication, hence when the vehicle warms up, the oil is circulating and performing it's function properly. I hope this helps and good luck!

Feb 02, 2010 | 1998 Oldsmobile Silhouette

2 Answers

Mazda mx3 clicking when cold

This is because the oil hasn't circulated in the HLA (hydrolic lash adjusters) that is ontop of the valves/springs under the cam. Once they are full with oil, the clicking stops and they opperate properly! Try running a thicker oil, other than that it's not a big problem unless the ticking is very loud or doesn't stop after it's warm.

Jun 10, 2009 | 1995 Mazda MX-3

1 Answer

99 Ford Ka3. 1.3 Engine smoking badly first thing

When your engine is running oil is circulating through it to lubricate the moving parts. When you shut off the engine the oil will pool in the top and drain back to the bottom via oil passages. The oil is hot and flows freely back into the oil pan. The engine and all of the parts are hot (remember metal expands when heated).
A small bit of leakage could be running into the cylinders while the car is cooling off. Could be caused by worn valve seats or valve guides. There will be some oil usage during the break in process of a rebuilt engine, but I think you are experiencing oil burn off. Don't be afraid to get a second opinion.

Apr 22, 2009 | 2000 Ford Focus

3 Answers

Knocking under valve cover on cold starts

Is there any smoke when you first start it? what is happening is the valve seals are probably worn and letting the oil seep past them. when your engine is first started it has no oil or very little oil at the top of the engine, thus causing the knocking noise. could be more but this is a most likely answer. oh and is you haven't changed your oil every 3,000 miles you had beeter start doing it.... answer knocking sounds usually come from bottom of engine try a better quality and correct viscosity oil

Nov 17, 2008 | Hyundai Motor 2002 Elantra

2 Answers

Oil ligth

It can be either electrical short or mechanical trouble.  Have the oil pressure test done on the car at two different sites - one in the engine block near the valve cover and another in the top of oil filter housing.  If the pressure is in the normal range, then it's electrical short.  If it isn't in the normal range, it is either something is blocking the oil from circulating or needs bearing replacement.

A quick (but not accurate) test would be to have the car running and check the oil level.  If the oil level remains constant, then the oil might not be circulating (which is why manuals often say check the oil when the engine is not running).  Be careful not to drive it if it looks like that the oil isn't circulating because it could lead to serious damage (in other words, engine rebuilding with bearing replacement).

Sep 07, 2008 | 1996 Volkswagen Jetta

1 Answer

Exit of oil from breather

hello at those speeds your oil pressure is pumping alot of oil to the top end i would pull the valve cover check oil returns for clogged ports pieces of sludge or broken pieces of gasket or permatex

Aug 11, 2008 | 1992 Jeep Cherokee Limited

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