Went to check my oil, oil cap was broken, threaded plastic was still intact, looked like top blew off.

I went to check my oil because there was a faint puddle in my garage, opened the hood saw the oil cap had blew its top, literally. It was never loose because the threaded part was still threaded in the motor. I took off the wheel, because that is how you access the filter. It was maybe a bit loose because I could turn it a tiny bit more to the right. There was oil all around the steering dust boot and control arm. Would a loose oil filter cause a pressure issue and blow the oil cap? Or cause other gasket problems? I noticed a bit of oil around the valve cover gasket. I checked the oil, it was
Experienced mechanics share their insights in answering this question :
Hi, thanks for writing in. Excess crankcase pressure is the likely source of this problem. If one or more of your crankcase ventilation components (i.e. PCV valve, oil breather/separator, or other crankcase ventilation device) are clogged up or inoperative, then crankcase pressure will build, forcing the dipstick out, and can force oil out of the rear main crankshaft seal, which could be where the oil around the steering boot and control arm came from. I would recommend having an expert from YourMechanic come to your home or office to confirm a diagnosis on the leak and make or suggest the necessary repairs or replacements.

How to Identify and Fix Common car Problems ?

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Your car needs a certain amount of oil to run, but a loose-fitting cap could cause your vehicle to slowly lose this lubricating If you begin to lose large amounts of oil, your engine could be in serious trouble and eventually seize up.
Pressure from the engine can put stress on the oil filler cap, causing oil to leak out, if the cap is broken, loose, or even missing. The most common site of leaking oil in automobiles is the valve cover gasket. It is a seal that prevents leakage and joins the valve cover and the engine.
Vacuum Leak Precautions

Missing oil caps can cause your PCV system to pull in air from the breather cap and into your engine`s intake system, ultimately resulting in a vacuum leak. These leaks can be engine killers, as they increase engine temperatures dramatically.

Re: Engine Warning Light – Loose Oil cap

Yes, a loose oil filler can cause this, it upsets the engine breather set up and can trigger an air leak/weak mixture fault code.

Driving without oil cap allows the dust and debris to enter inside the engine. And dust entering through the cap opening is where the trouble starts. The oil filters might keep the dust and debris away from reaching the engine parts. But debris can affect engine working at some point.
If anything, you should feel a slight suction when you remove the oil filler cap. If you feel pressure instead, the first thing to check is to see whether the PCV valve is clogged (which is an easy fix). Only after that is verified do you need to start worrying about excessive blow-by.
Leaking Oil Filter

The filter is one of the most common causes of an oil leak. Ideally, the oil filter should be replaced with every oil change. If you change your oil at home, you may forget this important step or the new filter may not be installed properly.

There are a few reasons why a filter might leak. When the oil in your vehicle is moving from one component to another, it`s under a lot of pressure. If the oil filter is installed too loosely, it can vibrate loose and allow oil to leak out. If it`s installed too tightly, the gasket could be damaged, leading to a leak.
Typically, a vacuum leak will cause situations like hard starting, rough idle, excessive fuel consumption, and engine codes. You might even be able to hear a leak – sometimes a whooshing or whistling sound can be heard with the engine running.
We`ve done it at the shop! TOM: And, if you actually drive around with the cap off on those cars, you easily could lose enough oil to damage the engine. You can lose half of your oil that way in a matter of hours.
What Is the Milky Residue? The milky residue on an engine cap is the product of engine oil mixing with water or moisture. It`s that simple. But your engine oil cap should create an airtight seal, and if your vehicle is healthy, water should never mix your oil to the extent that it would produce this residue.
Left unattended, an oil leak can mean serious problems for your engine. Even a small oil leak can trigger the check engine light.
Let the car idle a few minutes, to warm up the oil (warmed oil drains faster). Next, pop the hood, find the oil cap, and open it. This is where you will pour the new oil (not yet!), and opening it now allows the old oil to drain faster.
The oil filler cap seals the oil fill opening, which is where you pour the motor oil. Some oil filler caps have “engine oil” or some variation written on them. In other words, the oil filler cap is the cap you remove when adding fresh oil to the engine.
These days you might see no gas cap on new cars, but if your car wasn`t built with a capless fuel tank, it`s not recommended that you drive without a gas cap. If your vehicle is a little older, there`s a possibility that fuel could escape from the gas tank during aggressive corners or spirited driving.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

Went to check my oil, oil cap was broken, threaded plastic was still intact, looked like top blew off.
ANSWER : Hi, thanks for writing in. Excess crankcase pressure is the likely source of this problem. If one or more of your crankcase ventilation components (i.e. PCV valve, oil breather/separator, or other crankcase ventilation device) are clogged up or inoperative, then crankcase pressure will build, forcing the dipstick out, and can force oil out of the rear main crankshaft seal, which could be where the oil around the steering boot and control arm came from. I would recommend having an expert from YourMechanic come to your home or office to confirm a diagnosis on the leak and make or suggest the necessary repairs or replacements.

Attempted to change oil filter, but the oil filter cap broke, the top half of cap is broken off, the threaded part still remains.
ANSWER : Hi, thanks for writing in. I would proceed to carefully continue with the hammer and chisel. You could also try using a punch with the hammer to try and spin it out. The sudden shock from the punch could help jar the cap loose. When you do get the cap off it doesn’t need to be very tight. It just needs to be a tinny bit tighter than hand tight. This happens when the cap gets over tightened. Hope this helps and I wish you the best of luck!

Stop car check oil warning
ANSWER : This light will usually come on when one of two things are happening. Either the motor is in fact low on oil or the oil pressure sending unit is not working properly and may be producing a faulty reading. I would recommend first, to check the actual oil level in the motor by using the dipstick. Be sure the oil level reaches the "full" mark. If this registers as "full" then you likely have a faulty oil pressure sending unit. I would recommend having an expert from YourMechanic come to your location to take a look at your vehicle to determine what may be causing your low oil pressure light to come on.

lost all oil pressure, replaced the oil pump, low oil sensor, oil pressure sensor, oil pan gasket,
ANSWER : The fuel pump will not stay on if you loose oil pressure. This is why it is shutting off. The loss of oil pressure may be from bad crankshaft bearings or camshaft bearings. The engine oil pan should be removed and the oil pump needs to be checked to ensure that you put in the pick up tube seal to the pump and connected the pump to the block. Then remove at least one main bearing cap and inspect the bearings for excessive wear and crankshaft damage. If you need some help with this, consider YourMechanic, as a certified technician can help diagnose the issue with your oil pressure firsthand and help you fix it accordingly.

Low oil pressure light comes on when idle. Check engine light is on as well. Both came on after getting an oil change 3 days ago.
ANSWER : It is possible that they put in the wrong viscosity oil. In rare instances, a defective filter will also cause low pressure. If there is too much oil, it will aerate and cause low pressure. Be sure the oil level is really not above "max". The P2187 code will appear if the oil fill cap is not tight but it will also appear due to a myriad of causes because that code only "generally" identifies a lean running condition. Consequently, numerous parts would have to be tested including the O2 sensor, gas cap seal, manifold air leaks, any vacuum leak anywhere including PCV and EVAP systems, exhaust leaks, and fuel system faults such as failing fuel pump, clogged filter and more. Since the car has relatively low mileage, you would not expect a failed oil pump, although the pressure sensor (or switch) could be bad. However, the occurrence of the oil pressure warning light is quite coincidental to the oil change, thus I would suggest bringing the car back and asking them to redo with a new filter and double check the viscosity of the new oil that they use. If the problem persists after that, you will have to test actual operating oil pressure (at idle for instance) as well as the oil pressure switch. Finally, if the oil pressure warning light comes on continuously, unless the warning circuit itself is malfunctioning, that means the oil pressure is too low to operate the engine without damaging it. Anytime the light comes on for more than literally an instant, you should shut down the car and thus an issue like this obviously has to be repaired.

If you’d like, a YourMechanic certified mechanic can come to your home or place of business to inspect the vehicle and perform an oil pressure light is on inspection to diagnose the vehicle and suggest potential repairs.

think i put wrong oil in car went few miles lose power car dies oil in spark plugs still starts low oil blinking light before die.
ANSWER : Hello. If you put too thick of an oil in the car, then you may have damaged the engine bearings but this should not have caused oil to get in to the spark plugs unless the oil got into the intake of the engine or one of the pistons rings broke. If you ran it without oil and then tried to put oil in thinking it would be okay after that, then you were not that lucky and broke or damaged all of the rings on the pistons. If you would like to have this looked over, a certified professional from YourMechanic can come to your car’s location to inspect the stalling issue and go over all of the relevant systems for a better diagnosis.

My car paint has a plastic like shield on it and the plastic on top of the paint is peeling off. The paint isn’t peeling!
ANSWER : Hi There,
What you have peeling off is the clear coat. This is a clear coat of lacquer that is applied on all cars after they are painted. This is an additional coat that is added to give the the paint job both a shine and a protective layer. Over time, depending on the quality and the age of the paint job, this may peel off as you have noticed. Unfortunately, the only way to correct this is to have the car repainted. I would suggest visiting your local body shop to obtain a quote on having the clear coat reapplied.

My car is leaking oil i got an oil change for it last month but it is still leaking oil what will cause my car to leak oil ?
ANSWER : Most older cars have oil leaks. Sealing technology has just not kept up with mechanical improvements to engines so much so that leaks often kill engines rather than mechanical problems. So, it is not unexpected at all to have an, indeed many, oil leaks on a 23 year old car. Oil leaks vary hugely in terms of severity and priority of repair. Oil leaking onto a hot engine manifold is the worst case (the oil can start a fire; at best, you are left breathing oil fumes in the cabin, as the oil burns off of the manifold) while de minimus seepage of oil at the oil drain plug or oil pan gasket, while annoying and messy, if limited enough is not an emergency. Some leaks are easy to repair, while others literally require the engine to be removed just to get physical access to all the leak points. In your circumstance, if you smell burning oil, oil is probably leaking onto a hot engine part such as the exhaust manifold. A certified Mechanic, dispatched by YourMechanic right to your location, can perform an oil leak diagnostic and then let you know of your repair options and costs.

As far as the check engine light, that is not related to the oil leak(s). If you request a check engine light diagnostic, a certified mechanic from YourMechanic would use a code scanner to retrieve the specific diagnostic trouble code(s) from your car’s PCM that have caused the check engine light to illuminate. Using those codes, the appropriate individual vehicle components or sub-systems (often a sensor, circuit, and the like) are then carefully tested, based on specifications set forth in your car’s Factory Service Manual, to pinpoint the cause of the fault or the reason why the check engine light has illuminated. Once the faulty part or component is identified, it is explained to your satisfaction and the mechanic will let you know of the cost to repair. If you have further questions or concerns, do not hesitate to re-contact YourMechanic as we are always here to help you.