7 Causes of Chevy Impala “Oil Pressure Low, Stop Engine” Warning Light

7 Causes of Chevy Impala Oil Pressure Low, Stop Engine Warning Light

The Chevy Impala, a reliable and popular sedan, can experience mechanical issues like any other vehicle. If you drive an Impala, you may be familiar with the “Oil Pressure Low, Stop Engine” warning light.

This warning indicates low engine oil pressure in your car that needs adjustment or replacement.

In this guide, you’ll learn about the various causes of this warning light and what steps to take if it appears on your dashboard.

Here’s what’ll cover:

What Does “Oil Pressure Low, Stop Engine” Warning Means in Chevy Impala?

Is your dashboard indicating “oil pressure low, stop engine light?” 

An “Oil Pressure Low, Stop Engine” warning in your Chevy Impala is an indication of low engine oil pressure, below the normal level.

This can be due to various reasons, from a low oil level or dirty oil filter to a faulty oil pump or worn engine bearings. You need to understand the meaning of this warning to take steps to address the underlying issue for the reliability and safety of your vehicle.

What Are the Symptoms of Low Oil Pressure in Chevy Impala?

The warning lights on the dashboard are one way to tell if you’re having trouble with your Chevy Impala’s oil pressure. If it gives a low oil pressure warning or reads ‘stop engine,’ you need to take immediate action.

Additionally, if you start hearing strange noises from under your hood when accelerating or decelerating — such as ticking, knocking, or tapping — this is another sign that could indicate a problem with your engine’s oil system.

What Are the Major Causes of Low Oil Pressure in Chevy Impala?

Are you experiencing low oil pressure in your Chevy Impala? 

We are here to provide expert advice and solutions. Learn the most common causes and how to prevent them!

1. Clogged Oil Filter

One of the major causes of low oil pressure in a Chevy Impala is a clogged oil filter. Like all other car parts, replace the oil filters periodically for optimum performance and longevity.

A clogged oil filter restricts the flow of motor oil, resulting in reduced lubrication for moving engine components and, consequently, lower engine pressure.

Clogged oil filter.
Image source: Mechanic Base


Here’s the good news: you can easily change an old, clogged oil filter. You need patience and time if you’re mechanically inclined and have access to basic tools. Start by finding your Impala’s correct type of oil filter; consult your owner’s manual or online auto parts store if needed.

2. Blocked Pickup Tube

The pickup tube is an essential component of your Impala’s oil system. It allows oil to be drawn from the oil pan and fed into the engine.

A clogged Chevy Impala pickup tube can cause a decrease in oil pressure levels, leading to insufficient lubrication throughout the engine parts and causing premature wear down.

It is common to face overheating due to inadequate cooling from the motor oil.


Fortunately, replacing the pickup tube with one that fits correctly is usually all it takes to solve this issue. It will help keep your Impala running like new again!

3. Dirty Engine

Dirty engines are caused by a buildup of dirt and debris over time in the engine’s internal components, such as cylinders, pistons, and valves. This dirt prevents the smooth flow of oil between parts and can eventually lead to low oil pressure.

Dirty engine.
Image source: AxleAddict.com

Some common symptoms are an illuminated “check engine” oil light, loud knocking noises coming from under your hood while driving, or reduced acceleration power due to decreased lubrication within your engine.


Start with changing the oil filter every few thousand miles and having a professional flush out any accumulated dirt or sludge inside your engine with an appropriate cleaner.

4. Air in Oil

Air bubbles can form due to a leaky gasket or faulty valve, causing an interruption in the oil supply and leading to low-pressure readings.

The most effective way to check this common issue is by using a pressure gauge. If your Impala’s oil pressure is below normal, it’s important to diagnose and repair any leaks as soon as possible.


A mechanic will be able to identify any leaks and fix them accordingly. Upon diagnosis, they may also recommend adding additional additives or replacing certain parts, such as seals or filters.

5. Faulty Oil Pressure Sensor

The oil pressure sensor monitors the amount of oil flowing through the engine’s lubrication system to protect it from overloading or running out of lubrication.

The oil pressure sensor sends this information directly to the vehicle’s computer, warning you if there is an issue with low oil pressure. If your Impala has been having trouble starting or running rough, these could be signs of a faulty oil pressure sensor that needs replacing.


You need to replace the part by removing some bolts and disconnecting any attached electrical connectors. Remember, replacing an old, or malfunctioning oil pressure sensor can help protect your engine from further damage due to lack of lubrication.

6. Weak Oil Pump

Weak pumps are one of the major causes of low oil pressure in this model. You need to have a better understanding of this issue. Hence, it’s important to know how an oil pump works.

The pump pushes lubricant from the bottom to the top of your engine and ensures that all parts receive adequate lubrication. If the pump isn’t working properly or receiving enough power due to faulty wiring, it hampers the oil flow and affects the oil pressure-sending unit.


The solution for this issue is simple. 

You should replace the faulty oil pump and fix any accompanying problems, such as worn gaskets or seals.

7. No Oil

No engine oil in your car results in the metal parts grinding against each other, causing significant damage.

Without enough lubrication, the smoothness in these parts’ movement is affected, causing excessive friction, decreased performance, and low oil pressure readings.


All you have to do is to add more oil. It is a straightforward process and requires minimal effort and preparation. You should also ensure regular oil changes to ensure your vehicle runs fine.

How To Troubleshoot the Cause of Low Oil Pressure in Chevy Impala?

Check the oil level and condition to troubleshoot the cause of low oil pressure in your Impala. If the oil is low, top it off and see if that resolves the issue. If not, check for signs of a clogged filter or another blockage that could prevent normal flow levels throughout your engine.

Low oil pressure Chevy Impala.
Image source: Mechanic Base

Next, inspect all hoses connected to external components like power steering pumps and air conditioning compressors.

Any obstruction here can significantly reduce oil pressure levels in your engine. Ensure all belts are tight as well; loose or slipping belts can reduce overall engine performance, which may result in decreased oil pressure readings.

How To Reset Oil Pressure Light in Chevy Impala?

Turn on the electronics of the vehicle. Don’t start the engine!

Using the controls provided on the right side of the vehicle’s steering wheel, press the Up or Down navigation buttons to move up through the Info menu, then press the Up or Down navigation buttons to move down to the Remaining Oil Life menu.

Press and hold the button until 100 is shown oil life.

Final Thoughts: 7 Causes of Chevy Impala “Oil Pressure Low, Stop Engine” Warning Light

Chevy Impala’s “Oil Pressure Low, Stop Engine” warning light can be triggered by a wide range of potential causes, including clogged oil filters, a failing oil pump, low oil level, faulty sensors, insufficient lubrication, and more.

Ensure smooth running of your Chevy Impala runs smoothly for years by maintaining your vehicle properly and addressing any issues as soon as possible.

Explore our blog today for more engine-oil-related queries.

Frequently Asked Questions

Leave a Comment

Your email address will not be published. Required fields are marked *