I have an oil leak on my 95 Landcruiser. It's coming from a small round plastic fitting on the very top of the engine with small hoses coming from it. Do you know what this could be so I can replace it?

It is called a PCV valve. Go to autozone, O'rieilly or other parts store and buy a new one. It is about $5.00 and easy to change. The grommet on yours has dried out and may be cracked causing leak.. I would also check the oil level to ensure that it is not overfilled, which will cause the leak and engine damage.

Your biggest mistake is to replace metal fittings with plastic quick connect fittings. Heat and oil destroys plastic and you have set yourself up for a line failure that will drain the sump in seconds and ruin the engine . Plastic quick fits are for cold low pressure water only

1 the canister is a deposit of carbon that recovers and releases gasoline vapor depending on the engine demands, 2 the hose comming from trans.is a relieve , the other hose the one is leaking, may be a vacuum hose, inspect and some noise must make like a leak. a Thanks

If the hose itself is leaking replace the hose. If its the plastic fitting, remove the hose, remove the plastic fitting from the intake (should clip in), replace the o-ring on the fitting, reinstall the fitting into the intake, and install the hose onto the fitting.

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The 2007 Tundra 5.7l engine doesn't have a spin on filter - it uses a replaceable paper cartridge within a permanent housing. Located under the skid plate on the front-left portion of the engine, the oil filter unit has two coolant hoses, a black plastic screw-in housing, and a large, metal, round screw with a 1/2" square fitting in the middle of it. The cartridge-type oil filter is in the housing.

If equipped with a skid plate, access is accomplished by removing the 5 skid plate bolts, allowing the plate to swing down on integrated hangars (with the front plastic bumper skirt still attached). To completely remove the skid plate, three small screws holding it to the front plastic bumper skirt must also be removed.

Toyotafilter kits contain a new filter cartridge, a plastic drain plug, and two O-rings. The drain plug is used to drain residual oil from the filter unit prior to removing the plastic screw-in housing. After removing the large, metal, round screw with a 1/2" square fitting in the middle of it, the plug simply snaps into the bottom of the plastic housing. The smaller of the two new O-rings replaces the existing O-ring on the screw.

Once drained, the plastic screw-in filter housing is removed using a filter wrench (Toyota special service tool). The larger of the two new O-rings replaces the existing O-ring on the screw-in housing. VERY CLOSE ATTENTION must be paid in placing the new O-ring - failure to properly seat the new O-ring could result in a massive oil leak! The filter itself is currently only available from Toyota.

Code PO442 means you have a small leak in your evap system. Codes PO452 & PO453 refer specifically to the fuel thank.

Although it will be a good idea to change your gas cap, I don't think it is where your problem is coming from.

I would check the vacumm hoses for loose fitting or small cracks.

Specially if you had your car worked on recently.

Good luck

may just be a vacuum leak. best way to find out is start the car and pop the hood, you may hear a hissing sound, this would be a leaking vacuum hose or fitting. If you do not hear hissing, start with the top of the valve cover. There should be a rubber hose that goes to the brake booster, that is a major vacuum hose, start there and trace every vacuum line you see to the end....vacuum lines are mostly small hard plastic hoses, with cheap little rubber fittings, a lot of times these fittings dry rot and leak, causing the heat not to blow, cruise control not to work, bad oil pressure....you get the point, vacuum leaks are a PITA! but very important....my jeep did the same thing. All the sudden it stopped working all together. A vacuum hose had completely come apart. I spliced it together and it works like a dream....

good luck, hope this helps....

its more than likely either your head gasket or intake gasket. You either have the 3.4 or 3.8 engine and they are well known for these to leak.

the main vacuum hose is at the main intake frame at the top of the engin


but the vacuum lines for the vacuum systeme are more than one which one you main.
any way use this methode to check for leaking hoses.
A small piece of vacuum hose (1/4-inch inside diameter) can be used as a stethoscope to detect vacuum leaks. Hold one end of the hose to your ear and probe around vacuum hoses and fittings, listening for the
"hissin'g" sound characteristic of a vacuum leak.

(It's quite common for vacuum hoses,especially those in the emissions system, tobe color coded or identified by colored stripes molded into them. Various systems require hoses with different wall thickness, collapse resistance and temperature resistance.

When replacing hoses, be sure the new ones are made of
the same material.

Often the only effective way to check a hose is to remove it completely from the vehicle.

If more than one hose is removed, be sure to label the hoses
and fittings to ensure correct installation.

When checking vacuum hoses, be sure to include any plastic
T-fittings in the check. Inspect the fittings for cracks and
thehose where it fits over each fitting for distortion, which
could cause leakage.
. Warning: When probing with the vacuu hose stethoscope, be careful not to
come into contact with moving engine components such as drivebelts, the cooling fan, etc.

Most likely it is your ATF container is leaking were the two hoses on the bottom connect to it. Also there is an o-ring on the cap that can be replaced. Replace the hose clamps at the bottom with quality claps with rounded over edges. Try this part number at Bavarian Autosport, CL 16-25. Here is the BMW part number for the o-ring: 32411128333. The o-ring on the oil filter cover comes with and is replaced with the filter.