Active Grill Shutter Problems

Active Grill Shutters are an important system on modern vehicles that help to regulate airflow through the vehicle’s grille and radiator. This helps to improve the vehicle’s overall efficiency by reducing drag and maximizing engine cooling. Unfortunately, these systems can be prone to problems, and Active Grill Shutter Problems can lead to reduced fuel economy and poor engine performance. 

Symptoms of an Active Grill Shutter Problem 

The symptoms of an active grill shutter problem can be quite noticeable, and can include a decrease in engine performance and increased fuel consumption. The engine may feel sluggish, and acceleration may be slower than normal. The engine may also produce a loud rattling noise, or the vehicle may shake when accelerating. In some cases, the check engine light may be illuminated.

The active grill shutter may also become stuck in the open position, causing air to leak into the engine and reducing fuel efficiency. In serious cases, the active grill shutter may become stuck in the closed position, blocking airflow to the engine and causing the vehicle to stall or suffer from poor performance. In either case, it is important to have the active grill shutter checked by a qualified mechanic to ensure proper operation.

Causes of Active Grill Shutter Problems 

The active grill shutter (AGS) is a part of the vehicle’s emissions system that helps to reduce the amount of air that enters the engine. Over time, the AGS can start to malfunction, leading to a variety of problems. The most common cause of AGS problems is an issue with the sensors that control the AGS. The sensors detect the amount of air that is entering the engine and adjust the AGS accordingly. If the sens

ors are not working properly, then the AGS will not open and close properly, leading to a variety of issues. Other causes of AGS problems include worn or damaged components, faulty wiring, and an accumulation of dirt and debris inside the AGS.

Repair Options for Active Grill Shutter Problems 

Repairing an Active Grill Shutter (AGS) problem can be a daunting task, but with the right tools and knowledge it can be done. The AGS is a component on newer model vehicles that helps regulate air intake and temperature in order to improve fuel efficiency. When this part malfunctions, it can cause a variety of problems including decreased performance, higher fuel consumption, and engine stalling. The most common repair option for AGS problems is to replace the part with a new one.

Professionals can also inspect the AGS for signs of damage, clean it, and lubricate any moving parts. Additionally, a technician can test the AGS using a specialized computer to ensure it is working properly. If the AGS is damaged beyond repair, it must be replaced. No matter which repair option is chosen, it is important to keep up with regular maintenance to ensure the AGS is functioning correctly and efficiently.

Preventative Maintenance for Active Grill Shutters 

Active Grill Shutters are a vital component of a vehicle’s cooling system, and it is important to keep them in good condition in order to maintain the vehicle’s optimal performance. Prevention is the best way to keep Active Grill Shutters working properly, and there are several steps that can be taken to ensure that this happens.

Regular cleaning of the shutters and their internal components should be done to remove any debris or buildup that may be present. Additionally, any broken or bent parts should be replaced to prevent any further damage.

Additionally, the hoses connected to the Active Grill Shutters should be inspected for any signs of wear or damage, and replaced if necessary. Lastly, checking the shutters’ operation regularly can help identify any issues before they become more serious. By following these simple preventative measures, Active Grill Shutters will stay in good condition and help maintain the vehicle’s optimal performance.


Active Grill Shutters can pose a number of problems if not well-maintained or properly installed. From a build-up of debris and dirt compromising the system’s efficiency to a misalignment of the grille slats, all of these elements can cause airflow disruption and eventual failure. The key to avoiding these issues is regular maintenance and the proper installation of the system in the first place. Taking these steps can help you ensure that your Active Grill Shutters remain in proper working order and that your vehicle remains efficient and runs properly.

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