What does the OBDII code mean on a Chevy Avalanche?
What does the OBDII code mean on a Chevy Avalanche?
One of the most common trouble codes with all Chevy vehicles is the P0420. This code number references a number that is given to you when you plug your Chevy Avalanche into a OBDII scanner. It doesn’t matter which model you have, this OBDII code has the same meaning for all of them. P0420 is a OBDII trouble code. The code technically stands for:
What does service engine light on Chevy Avalanche mean?
Typically, they’ll idle ok and drive normal under a light load. Whenever the engine is put under a heavy load it’ll feel like it is running out of gas. It’s very similar to the symptoms of a bad fuel filter. Service Engine Light – Often, this is the only symptom of the Chevy Avalanche P0420 code.
What does the P0420 code on a Chevy Avalanche mean?
If your vehicle has the P0420 code, it won’t pass emissions so please be aware of that. The P0420 code in a Chevy Avalanche will often be thrown one of your oxygen sensors are not functioning properly. Typically, the code will be triggered by the upstream oxygen sensor (before the converter).
What does it mean when a car has an OBD2 scanner?
When that light is on it means there is a certain sensor in the car that has sent an error message to the powertrain control module (PCM) which it can’t decode.
Where is the OBD scanner on my car?
Plug the scanner into the port under the steering column. Modern vehicles have ports specifically designed for OBD scanners. Look underneath the steering column to find the port, then connect the cord attached to the scanner to the port. Refer to your vehicle’s manual if you cannot find the port.
What should I do if my check engine light says misfire?
If your “Check Engine” light diagnosis shows a generic cylinder misfire code, you should start with the most likely culprits first. Fortunately, these are also the cheapest and easiest. Spark plugs are as low as $2 each, and can be swapped in about an hour with varying difficulty.
What’s the diagnostic trouble code for a misfire?
The hard-to-diagnose misfires are usually the ones that set a P0300 Random Misfire Code or ones that don’t set a diagnostic trouble code at all. I don’t mean to give you the idea that it’s all a hopeless matter!
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.
