GM P0303 – Meaning, Causes, Symptoms, & Fixes
https://www.youtube.com/watch?v=pedGttpvPtg&ab_channel=FIXD What Does GM Code P0303 Mean? P0303 definition: Cylinder 3 misfire detected. Issue Severity: SEVERE – Stop driving immediately. Repair Urgency: Fix this code immediately (same-day if possible) to avoid ignition failure, catalytic converter damage, and dangerous conditions. Diagnosis: A cylinder 3 misfire can be caused by anything from faulty spark plugs to low engine compression. Because there […]
GM P0128 – Meaning, Causes, Symptoms, & Fixes
https://www.youtube.com/watch?v=VIkF3Dr3dpE&ab_channel=FIXD What Does Code P0128 Mean? GM P0128 definition: Coolant Thermostat Temperature Below Regulating Temperature Issue Severity: LOW– Continued driving for a short period of time is okay. Repair Urgency: Get this code fixed withing the next month to prevent the potential for overheating. Diagnosis: It is important to complete the entire diagnostic process when […]
GM P0456 – Meaning, Causes, Symptoms, & Fixes
https://www.youtube.com/watch?v=ZyGFNRMcw7U&ab_channel=FIXD What Does GM Code P0456 Mean? GM P0456 definition: Evaporative emission control system leak (small). Issue Severity: LOW – Continued driving for a short period of time is okay Repair Urgency: Get this fixed within the next month to prevent drivability problems and excessive fuel consumption. Diagnosis: It is unlikely the driver will notice […]
GM P0171 – Meaning, Causes, Symptoms, & Fixes
https://www.youtube.com/watch?v=1yAD0xUIekc&list=PLbKkKJSiLhJuDkLxxP8ormFbdrL6sR4lp&index=13&ab_channel=FIXD What Does Code P0171 Mean for Your GM Vehicle? P0171 definition: Bank 1 has too much air or not enough fuel Issue Severity: MODERATE– Extended driving with this code can cause internal engine damage. Repair Urgency: Get this code fixed as soon as possible to avoid damage to spark plugs, pistons, and catalytic converters. […]
GM P0420 – Meaning, Causes, Symptoms, & Fixes
What Does GM Code P0420 Mean? GM P0420 definition: Catalyst system efficiency below threshold (Bank 1) Issue Severity: MODERATE – Extended driving with this code can cause internal engine damage. Repair Urgency: Get this code fixed as soon as possible to avoid further damage to your emission system and possible engine damage. Diagnosis: The most common cause of a GM […]
GM P0300 – Meaning, Causes, Symptoms, & Fixes
https://www.youtube.com/watch?v=Pbz9wDtMuoU&ab_channel=FIXDhttps://www.youtube.com/watch?v=Pbz9wDtMuoU&ab_channel=FIXDhttps://www.youtube.com/watch?v=Pbz9wDtMuoU&ab_channel=FIXD What Does GM Code P0300 Mean? P0300 definition: Random, Multiple Misfire Detected Issue Severity: SEVERE – Stop driving immediately Repair Urgency: Fix this code immediately (same-day if possible) to avoid ignition failure, catalytic converter damage, and dangerous conditions Diagnosis: A multiple misfire can be caused by anything from faulty spark plugs to low engine compression. You can […]
