- Car Engine Shakes When AC is On
- Introduction
- Causes of Engine Shaking When AC is On
- 1. Compressor Clutch Problems
- 2. Low Refrigerant Levels
- 3. Faulty AC Compressor
- 4. Loose Belts
- 5. Other Mechanical Issues
- How to Fix Engine Shaking When AC is On
- 1. Check the Compressor Clutch
- 2. Check the Refrigerant Levels
- 3. Inspect the AC Compressor
- 4. Check the Belts
- 5. Inspect Other Mechanical Components
- Conclusion
Car Engine Shakes When AC is On
Introduction
When you turn on the AC in your car, you expect it to cool you down, not make your engine shake. But for some drivers, turning on the AC can cause the engine to vibrate or shake noticeably.
There are a few different reasons why this might happen. In most cases, it’s not a serious problem, but it’s important to know what to look for and how to fix it.
Causes of Engine Shaking When AC is On
1. Compressor Clutch Problems
The compressor clutch is a part of the AC system that engages and disengages the compressor. When the AC is turned on, the compressor clutch engages, which causes the compressor to start pumping refrigerant.
If the compressor clutch is faulty, it can cause the compressor to engage and disengage rapidly, which can lead to engine shaking.
2. Low Refrigerant Levels
The AC system needs refrigerant to circulate in order to cool the air. If the refrigerant levels are low, the compressor will have to work harder to pump the refrigerant, which can cause the engine to shake.
3. Faulty AC Compressor
The AC compressor is the heart of the AC system. If the compressor is faulty, it can cause the engine to shake.
4. Loose Belts
The AC compressor is driven by a belt. If the belt is loose, it can cause the compressor to wobble, which can lead to engine shaking.
5. Other Mechanical Issues
In some cases, engine shaking when the AC is on can be caused by other mechanical issues, such as a bad motor mount or a loose pulley.
How to Fix Engine Shaking When AC is On
1. Check the Compressor Clutch
The first step is to check the compressor clutch. If the clutch is faulty, it will need to be replaced.
2. Check the Refrigerant Levels
Next, check the refrigerant levels. If the refrigerant levels are low, they will need to be recharged.
3. Inspect the AC Compressor
If the compressor clutch and refrigerant levels are both good, then the next step is to inspect the AC compressor. If the compressor is faulty, it will need to be replaced.
4. Check the Belts
Next, check the belts that drive the AC compressor. If any of the belts are loose, they will need to be tightened.
5. Inspect Other Mechanical Components
Finally, if all of the above steps fail to fix the problem, then you should inspect other mechanical components, such as the motor mounts and pulleys.
Conclusion
If your car engine shakes when the AC is on, it’s important to have it checked out by a mechanic. In most cases, the problem is not serious, but it’s important to fix it to prevent further damage.
