How do you diagnose an engine misfire?

How do you diagnose an engine misfire?

The PCM can detect when a cylinder decelerates (an indication of a misfire), store a Diagnostic Trouble Code (DTC) in memory, and turn on the Check Engine Light. Some car computers detect misfires by measuring electrical activity [ionization] at the spark plug electrodes.

What’s the misfire code on my Chevy Equinox?

Mileage may suffer as well when your Equinox has P0303. P0303 is a cylinder specific misfire code, which means that Cylinder 3 is misfiring and causing the code.

Where is cylinder 3 on a Chevy Equinox?

An important thing to understand when finding the location of cylinder 3 is that it’s going to be the 3’rd cylinder in the firing order of the vehicle, and not the 3’rd cylinder that you might see when looking at the engine. The P0303 trouble code will trigger the Equinox’s service engine soon light.

Can a vacuum leak cause an equinox to misfire?

Vacuum leak – If your Equinox has a vacuum leak, it can be very difficult for it to get the right air/fuel mixture. This will cause the cylinders to misfire and it’ll throw the P0302 if the leak is around that specific cylinder on the intake manifold.

What causes the p0303 code on a Chevy Equinox?

There are quite a few things that can cause the P0303 trouble code to trigger the Chevy Equinox . Here are the most common problems that will throw the code. They are presented somewhat in order from most to least likely to be causing the code: Bad Spark Plugs – Spark plugs are one of the most common causes of P0303.

What happens if your Chevy Equinox has a misfire?

The P0302 trouble code will trigger the Equinox’s service engine soon light. The vehicle itself may begin to run rough. It depends on how serious the misfire is. The vehicle may produce excess vibration, especially at lower RPM. Fuel mileage may suffer.

Where is the cylinder one on a Chevy Equinox?

An important thing to understand when finding the location of cylinder one is that it’s going to be the first cylinder in the firing order of the vehicle, and not the first cylinder that you might see when looking at the engine. The P0302 trouble code will trigger the Equinox’s service engine soon light. The vehicle itself may begin to run rough.

What causes the p0302 trouble code on a Chevy Equinox?

There are quite a few things that can cause the P0302 trouble code to trigger the Chevy Equinox . Here are the most common problems that will throw the code. They are presented somewhat in order from most to least likely to be causing the code: Bad Spark Plugs – Spark plugs are one of the most common causes of P0302.

How old is the 2013 Chevy Equinox engine?

THIS 5.5 YEAR OLD CAR ONLY HAD 54,500 MILES ON IT WHEN THIS FAILURE OCCURRED. IT ALSO LEFT THE DRIVER STRANDED IN SUBZERO WIND CHILL TEMPERATURES. TL* THE CONTACT OWNS A 2013 CHEVROLET EQUINOX. EVER SINCE THE VEHICLE WAS PURCHASED, THE CONTACT NOTICED THAT THE OIL CONSUMPTION WAS VERY HIGH (APPROXIMATELY ONE QUART PER WEEK).