Car Jerks When AC is On? Don’t Worry, Here’s The Solutions To Try!
Why does the car jerks when AC is on? Mainly your car jerks or shakes when you turn on your AC because there is a problem with the engine mounts.
When a vehicle engine takes too much load, the load is distributed among the mounts. So if any mounting parts are loose, the car starts to jerk when you turn on the ac.
Due to various other reasons, your car can shake too. We are going to discuss everything in this article. Also, we will be giving you the solutions to these problems. So sit tight and stay with us.
Possible Reasons for Car Jerking When AC Is On
Problems | Solutions You Can Try |
Faulty engine mounts | Stabilize the mount holding the engine. |
Disoriented rotary belts | Synchronize the rotary belts with the rotary wheel. |
Here we have a table of problems along with their solutions. Now we are going to discuss the issues more descriptively.
Mounting Problem
We told you that, in general, all sorts of engine shaking are related to the mounts. If the mounts are loose, then due to heavy loads, the engine shakes.
But sometimes, if the load is much bigger, the mounts might not be responsible. So, in this section, we will give you a step-by-step process on how you can troubleshoot the problem and fix it.
Step 1: First, get your car to a silent place if you want to DIY fix it. A quiet garage might be a good place.
Step 2: Start your car and check if the check engine light is on. If the check engine light is on, the engine is taking pressure from the ac, and the mounts are not the problem.
Step 3: If there is no check engine sign, go to the front of the car and lift the bonnet. And check if there’s any problem with the other systems of the engines. Most of the time, due to other peripherals, the engine takes the pressure and puts it on the whole car.
Step 4: If there is no problem with the systems, check the mounts under the engine. Most of the time, the mounts get loose, and the engine may not be sturdy due to it. If you don’t know how to diagnose the mounting issues, then take it to the mechanic
Step 5: If any of the mounts need to be changed, then change them or take them to the mechanic, and they will fix it.
Step 6: If the engine is taking pressure from other external systems, take your vehicle to a mechanic. Because if you try to DIY the problems, you might worsen the situation.
Pressure On The Rotary Belts Due To Turning On The AC
Sometimes when you turn on the AC, the compressor takes power from the engine. When you turn on the AC, it gives pressure on the rotary belts of the engine. Specifically, the compressor gives the pressure.
And it is one of the main causes of your car shaking. Sometimes the rotary belts get disoriented and shake the whole engine. It also sometimes shakes the whole chassis due to rough idling.
So to fix it you will need a bit of help from the mechanics and try your best not to DIY the problem.
Step 1: Same again, take your car to a quiet garage. So you can identify from where the sound is originating and you can fix it. It is better to take it to a mechanic for further experienced troubleshooting.
Step 2: Lift the bonnet of the vehicle to check if there are problems related to the engine externals. For instance, check if the mounts are in their right position and if there is no fault with any other systems.
Step 3: Now see if the check engine light is showing. If the check engine light is on, there is some problem with the engine, and the engine is taking pressure.
Step 4: Take it to a mechanic and ask him if the problem is one of the rotary belts on the engines. If the problem is one of the rotary belts of the engine, then anything that operates on the rotary belts will shake the engine.
Step 5: If the rotary belts are disoriented, then tell them to orient them properly and check if the shaking continues.
Step 6: If everything is fixed then check if the car still goes to rough idling when you turn on the AC or at a stopping point. If the rotary belts are fixed, and the car still goes into rough idling, then there’s a problem with the engine mounts.
Follow the first problem to fix the engine mounts. After that, we hope that you won’t face the problem again.
This Video Will Help You Too!
Frequently Asked Questions (FAQ)
If the engine takes pressure from the external outputs more than it’s supposed to handle, it starts to shake.
First, find the source of your problem and take it to the mechanic. Follow the above steps if you want to fix it DIY.
Conclusion
So we hope you found out why your car jerks when AC is on. Mainly it happens if there is some extra pressure on the engine or the engine mounts. In Acs, some compressors take power from the rotary belts of the engine.
So if the engine takes too much pressure from these systems, its rotary belts will get disoriented. And due to these disoriented rotary belts, the whole car will start shaking.
We gave the fix to these problems in the above article. Just follow the steps accordingly, and we hope that you can fix your problem.
We may miss something in the process of explaining. You can let us know about it and help the community. Until then, stay classy with your safe ride.
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