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Aug 21, 2018 · P0302 in the GMC Sierra is a common OBD II trouble code. It indicates that your truck’s second cylinder has a misfire. P0302 is a real drivability concern and should be dealt with right away. If it’s bad enough to cause your Sierra’s check engine light to come on, you shouldn’t drive your truck at all. Repairing P0302 should be ...
The code is triggered once your ride’s PCM detects frequent misfires on cylinder 2. A P0302 code can be caused by a bad fuel injector or a malfunctioning injector circuit. A failed coil pack or worn spark plug can also trigger the code. It can also be triggered by engine mechanical issues like a sticking valve or weak piston rings.
The P0302 diagnostic trouble code (DTC) for a 2016 GMC Sierra indicates that a misfire has been detected in cylinder 2 of the engine. A misfire occurs when there is a lack of combustion in the cylinder, leading to a loss of power, rough idle, and potential damage to the engine if left unresolved.
Jul 21, 2022 · How to repair P0302 2017 GMC Sierra code Cylinder 2 Misfire Detected. ... What does this mean? Tech Notes. The P0302 code means that cylinder 2 is misfiring or is ...
Code P0302 2018 GMC Sierra Tech Notes. The P0302 code means that cylinder 2 is misfiring or is randomly misfiring. Start by checking for intake leaks and if no leaks are found the next step is to replace the spark plugs on cylinder 2. If the problem persists more tests need to be done to diagnose the problem, see "Possible Causes".
Let’s go into more depth and learn exactly what does the code P0302 mean? The first thing to understand is that the code indicates that the number two cylinder is the one that is failing to fire specifically. Secondly, the engine cylinders are controlled by the powertrain control module, or PCM. It is the PCM that controls and monitors the ...
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Jan 7, 2023 · P0302 DTC means that there’s an engine misfire in cylinder 2. The Powertrain Control Module (PCM) detects that a misfire is occurring in the 2nd cylinder in the car motor, thereby alerting the engine to set this trouble code. It’s a generic code, applying to all OBD-II equipped models. While the P0302 trouble code might be considered ...
