Clicking engine noise after low oil

Clicking in engine when you reach about 3000 rpm or higher. Mechanic wants to replace small block, but I think it is a lifter. Huge price difference for repair. Would Piston issue click constantly, and not consistently at a certain rev range?

My car has 42000 miles.
My car has a manual transmission.

Experienced mechanics share their insights in answering this question :
If you ran the engine low on oil then you may have damaged all the bearings in the engine and the noise may be in the camshaft lobes as they can get worn from lack of lube. Your engine used solid lifters that need to be adjusted periodically, so it’s unlikely that the clicking suddenly developed from a lifter. There are no specifics as to when pistons or bearings will make noise, so it’s possible that the noise you’re hearing is due to a damaged piston or bearing. I would recommend getting a second opinion from a certified mechanic, like one from YourMechanic, to diagnose the noise in the engine and verify the cause.

How to Identify and Fix Common car Problems ?

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An engine with low oil or low oil pressure can make a ticking noise due to a lack of lubrication. If you are low on oil, it may indicate either oil consumption or an oil leak, both of which should be addressed as soon as possible.
One of the most common causes of engine knocking is low oil. If your car has been using more oil than usual, it`s a good idea to top it off. You can also try using a higher-quality oil, as this can help reduce engine wear. It`s important to regularly change your oil because dirty oil can also cause knocking.
You`ll know when the axle is about to fail when you begin to hear a loud, rhythmic clicking noise coming from the front wheel as you turn. That noise is due to a lack of lubricant in one of the CV joints. A CV axle is a critical component of your Subaru, so it should be replaced properly by an authorized Subaru expert.
Low oil pressure might be the cause of those ticking sounds. When vital engine components don`t get adequate lubrication, it might cause other problems, and the engine starts to make these noises. A broken valve train component, such as lifters or cam followers, can also cause ticking, tapping, or clicking sounds.
Ticking noises can be cause by the wrong kind of oil, poor oil circulation, or low oil levels. Check the level of the oil first. If the level is full, then you want to double check the kind of oil that was used with what is recommended in your owner`s manual.
Not having enough engine oil or oil pressure to lubricate essential components, like the timing chain and engine valve train parts, can cause a loud ticking noise. Low lubrication can also lead to a loss of power as it creates friction between metal components.
The presence of oil and its distribution is absolutely crucial to an engines continued operation. Engines can work without oil, but the effect is so damaging they are only capable of running for less than 30 minutes until failing – and in most cases, it`s a lot quicker than that.
When you drive with a low oil level, you risk causing damage to the moving parts of your engine. That`s because engine oil is designed to provide lubrication for the moving parts of your engine. The lower the engine, the most likely these parts will experience friction. This can lead to excessive parts wear.
Your Subaru will have a recommended octane rating. If you fill it up with gas with an octane rating that`s below the manufacturer`s specs, you may hear a knocking or pinging noise coming from the engine. If you`ve filled up with lower-octane gas, you can try adding an octane booster to stop the knocking.
The header piping from cylinders one and three are different in length from those from two and four. This means, the exhaust gas coming off the engine has to move through different lengths, as does the sound it produces, which creates an uneven tone (much like a rumble), instead of a smooth tone.
Low oil, oil pressure, or worn tolerances in the valvetrain, can trigger a very distinguished ticking sound. People often call this “lifter tick.” The top end of your engine will suffer initially if you do not have adequate oil or adequate oil pressure.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

My 2003 ford explorer wont start up just get click click click click click click click click
ANSWER : If the battery is weak and the voltage is dropping to below 9 volts you will get the clicking without the starter turning the motor. Have the battery voltage checked and if battery cannot hold a load then replace it and clean the battery terminals and recheck system to see if it starts.

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.

Ticking noise from engine after running with low oil from leaking oil pan.
ANSWER : Depending on the ticking noise will depending on if it is a camshaft follower or a camshaft noise. If your engine was ran without oil you may have low oil pressure at idle and the engine can get noisy if the pressure drops. A mechanic, like one from YourMechanic, can come and listen to the noise and check the oil pressure to see if it is within specifications.

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.

I Had my oil changed on 5/28/16. On 5/31/16 the check engine light came on. On 6/5/16 the low oil pressure turn off engine came on
ANSWER : Hello,

From what you describe it would not appear to me that something went wrong during your oil change.

If the level is correct on the dipstick and the engine runs and sounds okay, then it is probably something else.

A likely cause for a problem such as this can be a defective oil pressure sensor, or wiring.

Virtually all vehicles have a dedicated oil sensor that will monitor oil pressure of the engine and set off a warning light if it falls to low, in order to protect the engine. If the sensor fails however, it can send a false reading to the computer or gauge, and cause the warning light to activate by mistake.

I would recommend having the vehicle’s oil pressure sensor tested for accuracy, and if necessary the engine’s oil pressure to make sure that there is no issue with the oil pump or system of the engine, as unlikely as that may be.

I’d recommend having a certified mechanic inspect the vehicle for you, they will be able to check for these failures and diagnose your Check Engine Light in order to get your car running normally again.

Regards,

Eduardo
YourMechanic

Check engine on knocking engine milky cap but not in oil change loud knocking noise while driving and cold start up
ANSWER : Coolant leaks can be external or internal. If the coolant is leaking internally into the cylinders or crankcase, that will require a fairly significant repair. If the coolant is leaking externally, unless the leak is at the head gasket or the lower intake manifold, external leaks can be repaired readily. On the engine you have it was really common to have coolant leaks at the lower intake manifold, so common that the gasket there was completely designed and a different repair procedure was specified (higher torque on the manifold studs). To get the coolant leak diagnosed, please use YourMechanic’s coolant leak diagnostic service link. The knocking noise is obviously of concern. Unfortunately, typically, such noise is from worn bearings, connecting rods, and other major components. The noise might be accompanied by low oil pressure. My best advice is have the cooling leak diagnosed in case that is readily resolvable. The mechanic can evaluate the noise and if it is internal the engine will eventually have to be disassembled and rebuilt. If you have further questions or concerns, do not hesitate to re-contact YourMechanic as we are always here to help you.

The engine is making rattling very high noise when you start the engine and constant.
ANSWER : The fact that the oil pressure drops when slowing down or stopping would suggest that the oil pressure is lower at lower engine RPM’s. This means that the oil level volume is low. The oil capacity in an engine is designed to correlate with oil pressure at any given RPM. When it is full, there should always be constant oil pressure assuming there is no oil leaks. I would suggest having an expert from YourMechanic come to your home to diagnose your vehicle and make appropriate repairs to your vehicle.

My car leaked all of the oil from the oil filter and now it’s making a loud thumping noise – did the engine pop ?
ANSWER : Hi there:

It’s really difficult to tell you for certain what’s wrong with your Saturn without completing a visual inspection. However, if you had to add half of a gallon of oil, that’s not a good indication that internal components were not unharmed. I’d recommend that you contact a local professional mechanic as soon as possible to complete an engine inspection to determine of damage that has been sustained.