Common questions

What causes an engine to lose oil pressure as it warms up?

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What causes an engine to lose oil pressure as it warms up?

The most likely cause of a car losing oil pressure when it warms up is a problem with the pressure relief valve, which regulates the oil pressure to ensure that there is enough pressure to circulate oil throughout the engine. When oil pressure is low, not enough oil is being distributed to the engine, potentially causing engine failure.

What makes the oil pressure go down at idle?

Oil pressure then appeared normal. But after the engine warmed up, the oil pressure dropped below normal at idle and the engine noise (probably lifters) returned. Raising the engine speed to above 1000 rpm causes the oil pressure to increase to about 45 psi.

Can a high oil pressure cause an oil leak?

Another symptom of high oil pressure is oil leaks around the engine. High oil pressure can also cause high crankcase pressure which could cause your engine to start to leak oil through the gaskets. On some cars, the oil pressure light will flash on your dashboard if the pressure get’s too high!

How to fix car engine that loses oil?

How to fix a car engine that keeps losing oil. It could be a bad PCV valve or worn engine that needs to be overhauled. DIY car repair with Scotty Kilmer, an auto mechanic for the last 46 years. 1. Bluetooth Scan Tool: http://amzn.to/2nfvmaD 2. Cheap Scan Tool: https://amzn.to/2D8Tvae 3. Professional Socket Set: http://amzn.to/2Bzmccg 4.

Can a low oil pressure cause engine to seize up?

Low oil pressure will cause the engine to seize up. When the oil pressure light on, it should be assumed that the engine locking up is imminent. We advise not running the engine until the issue can be properly diagnosed. There are many things that can cause low oil pressure. Below, we’ll review the most common causes:

Can a low oil pressure cause an engine to misfire?

There is a relation between engine misfire and low oil pressure because the sudden drop of oil pressure can cause the engine not running right and the RPMs to drop low in gear causing an engine misfire.

What causes a 4.6L V8 engine to overheat?

Some symptoms that may indicate oil pressure issues on the 4.6L V8 include: Often the low oil pressure light is the only giveaway to the problem at hand. Any other symptoms might mean it’s too late to prevent further damage. If too much oil pressure is lost the engine can quickly begin overheating.

Oil pressure then appeared normal. But after the engine warmed up, the oil pressure dropped below normal at idle and the engine noise (probably lifters) returned. Raising the engine speed to above 1000 rpm causes the oil pressure to increase to about 45 psi.

Why is my oil pressure reading so erratic?

Contrary to popular thinking, using an engine oil that is too thin will not make the gauge reading erratic on an engine that is in good mechanical condition. If installing a thicker viscosity oil raises the oil pressure, then something major is wrong inside the engine.

How do you check your oil pressure while driving?

Locate the oil pressure sending unit on the engine (the parts store can sometimes tell you where it is), remove it and follow the instructions that come with your universal oil pressure gauge to hook it up. Then drive the car and see what the gauge does. Be careful to watch the road as you do this. Don’t become fixated on watching the gauge.

What does it mean when your oil pressure is low?

When the oil pressure is low, it means that the engine is not getting the needed lubrication and this can lead to serious engine damage. Once you see the low oil pressure light illuminated, do not drive your vehicle until the issue is fixed. Here are the most common causes of low engine oil pressure: 1. Low Engine Oil Level

When does the oil pressure go up or down?

Your oil pressure SHOULD go up when you hit the throttle. The more RPMs the engine turns,the more the oil pump turns. When the engine is cold, you will have more oil pressure then when its warmed up,too. At 40psi…that sounds right.

What should the oil pressure be at idle?

As it warms up, it drops at idle to just under 40 psi and goes to just under50 psi at normal road speeds and RPMs..so a drop of about 10 psi when it is warm at normal operating temps on average is what I have noticed.

What should my oil pressure be when I start up my truck?

Whenever I start it up, the gauge jumps right up to around 40, and stays there, which seems like its normal operating pressure. However, whenever I rev the engine, the pressure gauge responds to my acceleration by going UP.

Contrary to popular thinking, using an engine oil that is too thin will not make the gauge reading erratic on an engine that is in good mechanical condition. If installing a thicker viscosity oil raises the oil pressure, then something major is wrong inside the engine.

When does the oil pressure drop in a car?

The problem is when the motor temp hits 160 degrees the oil pressure begins to drop from 40 pounds all the way to 15/20 pounds. The engine temp is fine and everything else seems ok, just the oil pressure.

What should I do if my oil pressure is low?

However, within 20 minutes, the oil pressure should be regulated, and the needle on the oil pressure gauge should rest at the midpoint. If the oil pressure remains low, have the oil pressure relief valve inspected by a mechanic. It is also possible that the oil pump is malfunctioning, which is responsible for regulating the flow of oil.

What should oil pressure be at 800 rpm?

Even if the gauge is correct, that oil pressure is just fine. The general rule for a SBC is that it requires 10 PSI for every 1,000 RPM. At an 800 RPM idle, 15 is just fine. If you are really concerned, drain the oil and replace the filter.

The problem is when the motor temp hits 160 degrees the oil pressure begins to drop from 40 pounds all the way to 15/20 pounds. The engine temp is fine and everything else seems ok, just the oil pressure.

The most likely cause of a car losing oil pressure when it warms up is a problem with the pressure relief valve, which regulates the oil pressure to ensure that there is enough pressure to circulate oil throughout the engine. When oil pressure is low, not enough oil is being distributed to the engine, potentially causing engine failure.

What to do if your oil pressure is low?

Check engine light came on the low oil pressure light and DIC alarming to shut engine down. Shut engine down and restarted, oil pressure went back up to 40 and continued to drive until it happened again. I dumped a can of seafoam in the crankcase and ran it through for a while, changed the oil and filter and never had a problem since.

Even if the gauge is correct, that oil pressure is just fine. The general rule for a SBC is that it requires 10 PSI for every 1,000 RPM. At an 800 RPM idle, 15 is just fine. If you are really concerned, drain the oil and replace the filter.

What happens if you have low oil pressure in your car?

The only way you can ensure that your engine stays protected is by having the right motor oil pressure. If you have low oil pressure, it can undermine your engine’s performance and possibly cause damage to its components. In short, it can spell serious motor trouble in the long run.

What’s the oil pressure on a Camaro 350?

When I first start this vehicle, the oil pressure is great (around 40-50 psi), but as the engine temperature increases, the oil pressure drops. After the motor is completely warmed up (around 190-200 degrees) the oil pressure gets very low (at 0 / almost 0).

There is a relation between engine misfire and low oil pressure because the sudden drop of oil pressure can cause the engine not running right and the RPMs to drop low in gear causing an engine misfire.

What happens if your Chevy Silverado has low oil pressure?

May 27, 2019 by Jason One of the most serious issues that can happen to your Chevy Silverado ‘s engine is if it ends up with low oil pressure. Low oil pressure will cause the engine to seize up. When the oil pressure light on, it should be assumed that the engine locking up is imminent.

How to troubleshoot an overheating Chevrolet 350 engine?

Twist off the radiator cap after allowing the engine to cool, then look into the radiator to observe the level of antifreeze. Pour antifreeze into the radiator until full if necessary. With the radiator cap off, start the engine and look through the radiator opening while the engine warms.

The only way you can ensure that your engine stays protected is by having the right motor oil pressure. If you have low oil pressure, it can undermine your engine’s performance and possibly cause damage to its components. In short, it can spell serious motor trouble in the long run.

What should oil pressure be on a GMC Sierra?

I have a 98 GMC sierra with the 5.7L and every time I drive it, my oil pressure is all over the place. When its started cold it reads 60, when its warmed up at cruising speeds of about 55-60mph it reads 40, but as soon as the RPMs drop when I coast, idle, or drive under about 10-15mph (warmed up) the pressure reads 20. Is this normal..

Is it normal to have low oil pressure when starting a car?

To a certain extent, it is normal for a car to have low oil pressure when first starting. However, within 20 minutes, the oil pressure should be regulated, and the needle on the oil pressure gauge should rest at the midpoint. If the oil pressure remains low, have the oil pressure relief valve inspected by a mechanic.

What should the oil pressure be on a 1998 Chevy truck?

1998 Chevy Truck K 1500 Truck 4WD V8-5.7L VIN R Oil Pressure (Minimum at Normal Operating Temperature) 1000 42 kPa (6 psig) 2000 125 kPa (18 psig) 4000 166 kPa (24 psig)

1998 Chevy Truck K 1500 Truck 4WD V8-5.7L VIN R Oil Pressure (Minimum at Normal Operating Temperature) 1000 42 kPa (6 psig) 2000 125 kPa (18 psig) 4000 166 kPa (24 psig)

What should oil pressure be on a GMC Sierra 5.7L?

I have a 92 GMC SIERRA 5.7L, I run 5w-20 in it and it runs better than wen I first had it 353k on it she sit at 150 kpa for oil pressure Did you find the recommended reading relevant to this discussion?

How can I tell if my gas tank is pressurized?

You seem to have been thorough in tuning up, so I’m guessing you’ve checked if codes are being set. One thought is if it seems fuel starved you may want to check EVAP system esp. vent and purge solenoids, after it dies, pop the gas cap and see if it feels like tank was pressurized.

Why is oil pressure higher at higher RPMs?

When you first turn it on the oil is cooler, so it’s thicker. So the pressure is higher. And your pressure will obviously be higher when your rpms are higher. Mine goes down to 20ish when I’m idling and warmed up too. No worries. Eh..oil thickness could play a role too. I use 5w30. My dad’s truck runs at higher pressures and it’s got 10w30 in it.

Can a high engine speed cause low oil pressure?

High engine speeds can cause faster than normal wear on crankshaft bearings, especially if combined with low-quality engine oils and longer than specified intervals in between oil changes.

Why does the oil pressure warning light come on when the engine is running?

If the oil pressure warning light has come on but you have confirmed that the oil level is correct and the engine is running normally with no unusual noises or high temperatures, the problem may be a defective sensing unit. You may wish to have the oil pressure tested with a gauge. If the pressure is normal, simply replace the oil pressure sensor.

How is oil pressure generated in an engine?

An engine’s lubrication system is essentially formed by the pump, oil filter, lubrication lines and hardware. The pressure in the system is generated by the resistance that the oil must overcome in the lines to reach the lubricated components.

How is the oil pressure of an engine determined?

Oil pressure is determined by the resistance oil faces when flowing through the oil passages of the engine. Oil pressure is indicated by the oil pressure gauge and should show a steady value around 20 minutes after engine start-up, when the oil has reached its operating temperature. The unit of measurement is either PSI or Bar.

What should the oil pressure be in a semi truck?

For most semi-trucks, the normal operating oil pressure is between 40-50 PSI (pounds per square inch). Keep in mind that it takes around 20 minutes for an engine to reach its maximum operating temperature. The pressure will also drop a little if you’re spending a lot of time idling, too.

What should oil pressure be when engine gets warm?

Immediately the oil pressure went up to 45 psi. When it reached 160 it never dropped below 38 psi and has been steady since then. I told my son to keep an eye on it and if it drops down again, change the oil by repeating what we had just done. Its cheaper to do a 25 dollar oil change than it is to swap out a block.

What happens to an engine when the oil temperature is too low?

In all engines, the engine’s clearances are significantly tighter, creating extreme amounts of stress on the engine’s internals and the piston rings will not have properly sealed with oil temps too low. In short – it’s really bad for your engine to run it hard until it’s OIL is completely warmed up.

What does it mean when your oil pressure is 0?

0 oil pressure does not mean you don’t have any oil in your vehicle. If your oil pump goes out, you will have 0 oil pressure. Most likely, your oil pressure sending unit went out. Before you drive your Jeep I would ensure this is the case (assuming is playing Russian Roulette w/ your motor).

When your engine is idle or when you’ve just started your car, the oil pressure gauge will have a low reading. When the engine starts running and heating up or when you’re already cruising on the freeway, your gauge’s reading should increase.

What causes the oil gauge to drop to zero?

If that doesn’t work, here’s the real bad news…your cam bearing is bad. It the bearing that looks like U, there are several of them and on the center there are grooved in them to let oil pass as pressure builds up in the engine. Once the grooves are worn, no oil can pass, so no oil pressure. Basically it’s a whole engine rebuild.

When does the oil pressure gauge come on?

As I am coming to a stop while driving, the oil pressure gauge suddenly falls down to 0, then the check gauge light comes on, but only for about 2 seconds before it rises sharply back to where it is supposed to be. What is the problem and how serious is this?

0 oil pressure does not mean you don’t have any oil in your vehicle. If your oil pump goes out, you will have 0 oil pressure. Most likely, your oil pressure sending unit went out. Before you drive your Jeep I would ensure this is the case (assuming is playing Russian Roulette w/ your motor).

What’s the oil pressure on a new tractor?

When the tractor engine is first started the oil pressure is normal on the gauge and everything seems to be fine. However, as the engine warms up you notice a drop in the oil pressure into the low range.

What should oil pressure be at start up?

Oil pressure should read 40-50psi on start up but drop to 8-12 when warmed up and rise to about 32-34psi at cruise and stay there. Anything else indicates a fault in the system which could be a faulty gauge or sending unit but the OP has addressed those already. 70 mph is cruising speed on most roads in Texas.

Why does oil pressure drop when engine gets warm?

Oil pressure drops as engine gets warm. Increased clearances due to wear can cause pressure to bleed off faster with lower viscosity oil, leading to lower pressure on the gauge. More than anything, it could be some wear. It could also be some sludging or carboning of the oil pressure relief valve in the oil pump.

When the tractor engine is first started the oil pressure is normal on the gauge and everything seems to be fine. However, as the engine warms up you notice a drop in the oil pressure into the low range.

When the oil pressure is low, it means that the engine is not getting the needed lubrication and this can lead to serious engine damage. Once you see the low oil pressure light illuminated, do not drive your vehicle until the issue is fixed. Here are the most common causes of low engine oil pressure: 1. Low Engine Oil Level

When does oil pressure drop to 5 lbs?

When my engine gets warm, my oil pressure drops to 5 lbs. I properly installed the oil pump and primed it.

What causes oil pressure to drop in Dodge Ram 1500?

Never would either engine overheat. It was as if the engine was not getting what it needed as if it was about to overheat but still would not. If I never changed out the clutch fan and went ahead and changed the water pump, of course it would have eventually overheated. The clutch fan needed replacing, and that’s when the issue went away.

What to do when oil pressure drops to zero?

Depends on the car. But usually people first check continuity on the harness first, then check resistance on the pressure sensor and then resistance on the gauge. My 1988 4runner was doing the same, once engine warmed up, the pressure would read 0. In my case the pressure switch is cheap so i did trial and error.

What should the oil pressure be in a Vortec?

But after the engine warmed up, the oil pressure dropped below normal at idle and the engine noise (probably lifters) returned. Raising the engine speed to above 1000 rpm causes the oil pressure to increase to about 45 psi. If the engine speed is increased even more, oil pressure tops out at about 55 psi.

What should the oil pressure be in a SBC?

Welcome Aboard! Even if the gauge is correct, that oil pressure is just fine. The general rule for a SBC is that it requires 10 PSI for every 1,000 RPM. At an 800 RPM idle, 15 is just fine. If you are really concerned, drain the oil and replace the filter.

To a certain extent, it is normal for a car to have low oil pressure when first starting. However, within 20 minutes, the oil pressure should be regulated, and the needle on the oil pressure gauge should rest at the midpoint. If the oil pressure remains low, have the oil pressure relief valve inspected by a mechanic.

What causes low oil pressure and engine noise?

Low oil pressure and engine noise are often attributed to internal wear, especially on high mileage vehicles. The actual cause may be slightly less dramatic. Low Pressure Zone. A customer recently brought in his 2008 Chevrolet Silverado 1500, which is equipped with the 5.3L Vortec engine.

Why is the oil pressure warning light still on?

If you have refilled your engine oil with a new one but the light is still on, the culprit could be the engine pressure sensor. The sensor is connected through a circuit from the engine to the dashboard. With time the sensors get filled with dirt and this reduces their ability to detect low oil pressure effectively.

Why does my oil leak when it warms up?

This is a common occurance so we need to understand what is happening. Basically as the oil warms up it becomes less viscous (thinner and more runny) and it is therefore able to leak and flow (past anything it shouldn’t) more easily.

Why does the oil light come on at high speed?

Since the light comes on at low engine speeds and then shuts off, the oil pump is probably fine; if the pump were dying, you’d see low pressure at high engine speeds as well. The most likely culprit is the sensor that operates the light.

If you have refilled your engine oil with a new one but the light is still on, the culprit could be the engine pressure sensor. The sensor is connected through a circuit from the engine to the dashboard. With time the sensors get filled with dirt and this reduces their ability to detect low oil pressure effectively.

When does the engine temperature warning light come on?

When working properly, the cooling system keeps the engine running at peak efficiency and at its ideal operating temperature. Upon starting, the engine temperature warning light should come on and then go off in two seconds or less. But if it stays on, or comes on while you’re driving, there’s a problem.

Can a low oil level cause a car to shut off?

Can low oil cause a car to shut off? Low engine oil level does usually not cause your car to shut off. However, if it is too low so your oil pressure is getting low – the car can shut off the engine for safety reasons. This is often in newer cars, though.

What to do when your car engine stops working?

The main computer system or PCM (Powertrain control module) controls fuel, ignition, transmission and emission systems and can short out and stop working. This can be reset by shutting the engine off (key off) and allowing the system to sit for about 5 minutes for the system to reboot then try to reset the engine.

What happens if there is no oil in the engine?

Step 7 – If the engine has no oil pressure, suspect the oil pump drive, some manufactures use a belt to drive the pump which are prone to failure. Engine oil is used to cool and lubricate bearing and machined surfaces. Without oil pressure an engine will experience extreme internal engine damage due to heat caused by friction.

What happens if your oil pressure is low?

Without oil pressure an engine will experience extreme internal engine damage due to heat caused by friction. All engines run on a pre-set pressure that cannot be adjusted. This pressure will vary depending on engine speed, temperature and weight oil. As a rule of thumb, the engine oil pressure gauge shouldn’t drop below…

What’s the oil pressure on a Ford F150?

I recently purchased a used Ford F150, V6, 4.2 liter, 137K miles. While driving it today, the oil pressure dropped to zero and the oil pressure light came on. I checked the oil level and everything was fine.

How to tell if your oil pump is low?

(By the way, a p0524 is specifically low oil pressure, 0521 is Engine Oil Pressure Sensor/Switch Range/Performance -Is your oil pump producing proper volume? -Is the ENTIRE wiring circuit leading to/from your oil pressure sensor intact, and not shorted or open? And all connectors properly cleaned and seated? -Is your oil filter bypass valve stuck?

What are the symptoms of low oil pressure?

Symptoms of Low Oil Pressure 1 Oil Level or Oil Pressure Warning Light on the Instrument Panel. 2 Unusual Clunking Noise in the Engine. One of the most important functions of motor oil is to lubricate the different moving parts of the engine. 3 Smell of Burning Oil. 4 Poor Engine Performance. 5 Engine Overheating. …

Why is oil pressure low when engine gets hot?

Click here to see what we’ve got! This article comes about due to a question that came in from an owner of a Massey Ferguson 135 tractor. When the tractor engine is first started the oil pressure is normal on the gauge and everything seems to be fine. However, as the engine warms up you notice a drop in the oil pressure into the low range.

Is the oil pump OK when the engine is not hot?

And again, perfect pressure on idle at starting or short drives. I gotta think the oil pump is ok, due to the fact that idle pressure is fine when the engine/oil isn’t hot. Furthermore, the pressure is ok while driving when engine/oil is hot.

What does low oil pressure mean at idle?

Indicated Low Oil Pressure at Idle When Hot. Indicated low oil pressure at idle when hot. Oil pressure gauge drops to 5# or less at idle and chime starts when hot. Using scanner for readings. NO internal engine noise ( bearings or lifters ) at idle. Engine is quiet. Replaced oil pressure switch w/ o.E. Service switch.

What to do if your car has no oil pressure?

Once the engine has warmed up the oil pressure returns to what could be considered “normal”. After the cold start, no oil pressure problem, the engine and the oil pressure is fine for the rest of the day. Let it even set overnight though and I have a repeat no oil pressure with start up.

Can a high oil pressure cause low oil pressure?

Unfortunately, high oil pressure will also cause low oil pressure in another part of your engine. Therefore it is essential not to let your engine run before you fix the clogged oil passage. Are you sure there is actually high oil pressure in your engine or is it a chance that the sensor or gauge shows you the wrong oil pressure?

What should the oil pressure be at 3000 rpm?

The ideal oil pressure ranges between 25 to 65 psi when the engine oil is warm and 1000-3000 rpm, whereas if the oil pressure reading shows 80 psi or above then there is some serious problem.

When to worry about high oil pressure in your car?

Mostly twice as high as when the engine is warm or even higher. Check your pressure when your engine oil is hot instead. If the pressure is too high when the engine oil is hot, it is time to start worrying. Experimenting with different oil grades can sometimes be a bad decision, especially if you don’t consult an expert.

Can a HPOP run without base oil pressure?

This seems strange because the truck still runs, and as I understand it, the HPOP cant build pressure without base oil pressure. if I keep RPM above 1K it shows Base oil pressure on gauge, if I let off to idle the truck still runs (so should have High pressure) but the gauge bottoms out so <7psi. Under load the truck has no power.

Unfortunately, high oil pressure will also cause low oil pressure in another part of your engine. Therefore it is essential not to let your engine run before you fix the clogged oil passage. Are you sure there is actually high oil pressure in your engine or is it a chance that the sensor or gauge shows you the wrong oil pressure?

The ideal oil pressure ranges between 25 to 65 psi when the engine oil is warm and 1000-3000 rpm, whereas if the oil pressure reading shows 80 psi or above then there is some serious problem.

What to do if your oil pressure is low in your car?

Start with the car on level ground, in park with the emergency brake set. Step 1 – To verify the engine oil pressure is low, start the engine (cold) and observe the gauge or light. Step 2 – Using the engine oil dip stick, check the oil level of the engine and ensure a proper level.

Start with the car on level ground, in park with the emergency brake set. Step 1 – To verify the engine oil pressure is low, start the engine (cold) and observe the gauge or light. Step 2 – Using the engine oil dip stick, check the oil level of the engine and ensure a proper level.

Can a Silverado run with no oil pressure?

Drop the oil pan, remove a couple of bearing caps located the fartherest away from the oil pump, and you may find the cause. And yes, an engine can run fine with no bearing knock and the crank bearings worn.

Why does my oil pump have low pressure?

(Engine oil pan removed while turned over.) Step 5 – The oil pump is also designed with an oil pressure relief valve and spring which regulates pressure. If this valve becomes faulty caused by a broken pressure spring the pump will have low oil pressure.

What causes a diesel car to not start when hot?

The standpipes are not as common of an issue on the 03. For that model year, a high pressure oil issue (if you have one) is more likely to be a leak at an injector o-ring (at the oil rail), an HPOP discharge o-ring, or the HPOP isteslf.

Why is my oil pressure going down in my Dodge Ram?

Hello, I am suddenly, but briefly, losing oil pressure in my dodge ram pickup. As I am coming to a stop while driving, the oil pressure gauge suddenly falls down to 0, then the check gauge light comes on, but only for about 2 seconds before it rises sharply back to where it is supposed to be.

What happens if your oil pressure is 0?

The gauge on the dash if it reads 0, but the truck is running, the low pressure oil system is fine. DTR said in one of his videos that the dash gauge will shut off if the truck needs the power elsewhere. I experienced this when my RV I was towing had a dead battery and the truck was charging it.

What was oil pressure in 2003 2500HD 6.0L?

2003 2500HD 6.0L with about 105k. Got in the truck this morning to go to work and the low oil pressure warning came on and gauge was basically at zero. Figured it was just the gauge so cycled the key a few times and still zero pressure. Limped around the block and started to hear a light knock so shut it down.

What to do if your base oil pressure is low?

You need to check base oil pressure, the pump could be bad or the cover or the pressure relief valve could have junk in it, or the drain back valve in the oil filter housing is broken. Check and see if the filter housing is filling with oil during cranking, check the relief valve.

What should you do if your oil pressure is low?

Oil pressure is one of the most important parameters in an engine. When your vehicle’s oil pressure light comes on or the pressure gauge reports a lower than normal reading, it could signal a major problem. Unfortunately, you won’t know whether the issue is serious, so the best course of action is to simply turn off your engine.

What should the pressure be on a diesel engine?

In diesel engines, the pressure gauge typically reports real-time pressure in pounds per square inch or bars. Some lubricant manufacturers produce lubricants with a lower viscosity that is still within the range of the SAE grade.

Why does my Ford 5.0 show a low oil pressure warning?

Ford Mechanic: Ron, ASE Certified Technician replied 2 years ago The usual problem with the low oil pressure warning coming on with your 5.0 is in most cases caused by a failing oil pressure sending unit providing the engine is running normal and there is no engine noise.

When does low oil pressure Lite come on?

Second opinion] Have a 2012 F-150 with the 5.0 engine. bought the truck 2 months ago. two weeks ago low oil pressure lite comes on at stop light. Installed new oil pressure sending unit. worked good f…

What causes the oil pressure to drop in a car?

Another common reason for oil pressure to drop is when the oil starts to break down – remember, your car oil wears out a little bit every time you drive your car. You can check your owner’s manual for the recommended oil change intervals to ensure your car engine is not running on old oil. Oil Pump is Damaged or Worn Out

Why does my Chevy Silverado make a knocking noise?

65 people found this helpful. for a piston slap you need to pull apart the motor and possibly either re-bore the cylinder with the bad piston or replace the entire block be cause of the damage done to the piston and the cylinder as the piston “slapped” against the walls of the cylinder most likely gouging the cylinder walls

What kind of engine noise does a 94 Silverado make?

I wanted to add my recent experience to this thread…I recently purchased a 94 Silverado with the 4.3L balance shaft design. 139k miles and 180psi on all cylinders. Loud rattling noise just over 1K rpms.

What to do if your Vortec engine makes knocking noise?

Try taking your oil pan off and check your oil pick up line going from the oil pan to the turbo. A lot of times it gets a lot of sludge build up and makes the pressure little to none. If that looks clear check the slump inside the oil pan and see if that has sludge build up. Well hope this helped Make sure oil level is adequate.

Try taking your oil pan off and check your oil pick up line going from the oil pan to the turbo. A lot of times it gets a lot of sludge build up and makes the pressure little to none. If that looks clear check the slump inside the oil pan and see if that has sludge build up. Well hope this helped Make sure oil level is adequate.

65 people found this helpful. for a piston slap you need to pull apart the motor and possibly either re-bore the cylinder with the bad piston or replace the entire block be cause of the damage done to the piston and the cylinder as the piston “slapped” against the walls of the cylinder most likely gouging the cylinder walls

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Ruth Doyle