GMC Acadia P0304: Cylinder 4 Misfire – Diagnosis + Fix

If your GMC Acadia has the P0304 trouble code, you should know that it’s about as common of a code as there is. It’s a generic OBD IIcode (same meaning for all vehicles) that indicates that your vehicle’s fourth cylinder is misfiring. P0304 is a drivability concern and should be dealt with right away. If … Read more

P0741 GMC Acadia

P0741 is a very common trouble code. It’s know to affect the GMC Acadia quite often. Here’s what it means: P0741: Torque Converter Clutch Circuit → Performance or Stuck Off The Acadia uses a clutch in the torque converter to lock the engine and transmission together at highway speed. P0741 can register whenever this connection … Read more

P0121 GMC Acadia

P0121 is a somewhat common trouble code with the GMC Acadia. It’s an OBDII code and has to do with the Throttle Pedal Position Sensor. It is relatively serious problem since it leaves your vehicle in failsafe mode. P0121: Throttle Pedal Position Sensor → Switch (TPS) A Circuit Range → Performance Problem OBDII code P0121 … Read more

P0303 GMC Acadia: Cylinder 3 Misfire Diagnosis

If your GMC Acadia has the P0303 trouble code, you should know that it’s about as common of a code as there is. It’s a generic code (same meaning for all vehicles) that indicates that your vehicle’s third cylinder is misfiring. P0303 is a real drivability concern and should be dealt with right away. If … Read more

P0449 GMC Acadia

A very common issue with the GMC Acadia is the P0449 code. This trouble code is a reference number that is given to you when you plug your Acadia into a OBDII scanner. P0449 deals with the evaporative emissions control system. It often appears with, or is related other codes, such as P0420, P0446, and … Read more

GMC Acadia P0300: Meaning, Causes, + How to Fix

P0300 is a generic OBDII code that can occur with the GMC Acadia. This code indicates that your vehicle’s engine is misfiring and can be a drivability threat. P0300 is often accompanied by cylinder-specific misfire codes (P030X, where the X indicates the cylinder number that is misfiring). If you have P0300 and a cylinder-specific misfire, … Read more

GMC Acadia P0455: Meaning, Causes, + How to Fix

P0455 in the GMC Acadia is a trouble code that indicates your truck has a LARGE evaporative emissions leak. With this code, you shouldn’t notice any symptoms besides perhaps a noticeable fuel smell. P0455 usually is not an immediate threat to the driveability of your Acadia. But, whenever the check engine light is on, it’s … Read more

GMC Acadia P0446: Meaning, Causes, How to Fix

A prevalent issue with the GMC Acadia is the P0446 code. This code corresponds to a specific number obtained when connecting your Acadia to an OBDII scanner. A faulty vent control valve most commonly causes P0446. Definition P0446: EVAP System – Vent Control Circuit – Malfunction Symptoms Usually none Common Causes Bad EVAP Vent Control … Read more