What is the misfire code on a Silverado?

P0307 is a cylinder specific misfire code, which means that Cylinder 7 is misfiring and causing it. An important thing to understand when finding the location of Cylinder 7 is that it’s going to be the seventh cylinder in the firing order. Silverado P0307 OBDII Code Symptoms

Are there any misfires on my GMC Suburban?

It only has misfires on 2,4,6, and 8 no misfires shown on 1,3,5, and 7. … read more MY 1999 GMC SUBURBAN KEEPS THROWING A P0301 CODE NUMBER 1 CYLYNDER MISFIRE ITS A NEW MOTOR ABOUT 3500 MILES AND IVE DONE EVERYTHING TO TRY TO GET RID OF THIS CODE.

What does the code p0307 mean on Chevy Silverado?

P0307 is a fairly common trouble code with the Chevy Silverado. It’s and OBD2 code and means that a misfire has been detected in the 7th cylinder in the firing order. You should only be seeing this code if you have an engine with at least 7 cylinders. So, it’s mostly a code for V8 engines.

What kind of fuel injector does Chevy Silverado use?

Chevy Silverado Misfire , Dirty Injector ,.This 1999 Chevy Silverado was running badly and had a misfire. The Chevy Silverado hooked up to the Scanner showed a misfire on number eight cylinder .The 5.3 in the chevy Silverado is easy to switch ignition coil and plug wire with another cylinder.

What causes a Chevy Silverado spark plug to misfire?

Bad Spark Plugs – Spark plugs are one of the most common causes of P0306. Take a look at the electrodes and see if they are in good shape. Most vehicles now come with iridium plugs that need changed very infrequently.

What is the diagnostic code for cylinder 7 misfire?

Cost of diagnosing the P0307 code. P0307 is a diagnostic trouble code (DTC) for “Cylinder 7 Misfire Detected”.

How to troubleshoot a GM Truck misfire?

This isn’t the only symptom that your GM van, pickup or SUV might experience… here are some more that you might see: P0300: Random Cylinder Misfire. P0301: Cylinder #1 Misfire. P0302: Cylinder #2 Misfire. P0303: Cylinder #3 Misfire. P0304: Cylinder #4 Misfire. P0305: Cylinder #5 Misfire. P0306: Cylinder #6 Misfire. P0307: Cylinder #7 Misfire.

What does the misfire code p0307 mean?

What makes a GM 4.8L misfire engine stall?

P0306: Cylinder #6 Misfire. P0307: Cylinder #7 Misfire. P0308: Cylinder #8 Misfire. Really bad gas mileage. Lack of Power when you accelerate your van, pickup or SUV. Engine may start, run for a few minutes and stall.

Why does my Vortec 5300 have a misfire?

MISFIRE MYSTERY!!! I have a misfire that cannot be diagnosed!!!! 1999 5.3 Sierra. My engine has been rebuilt because of a dead #7 cylinder at 167800 miles. We figure a weak coil caused this.

What causes cylinder 5 on a Chevy Silverado to misfire?

The engine is also not firing all of the fuel, so raw fuel is also passing through Cylinder 5 into the exhaust. Mileage may suffer as well when your Silverado has P0305 as well. P0305 is a cylinder specific misfire code, which means that Cylinder 5 is misfiring and causing it.

How to tell if an intermittent cylinder 7 misfire?

: Vortec 5300 5.3L V8 Intermittent cylinder 7 misfire. Like the title says it only happens at low rpm and only accelerating, then when it hits around 2k rpm it runs fine. Ive only been able to hold it in the sweet spot once so it was sputtering long enough to throw the code, that’s how I know it’s p0307.