What Causes the Honda CR-V to Shake When the AC is On?

[VonLorenzo]

The reasons why the Honda CR-V shakes when the AC is on are as follows: 1. Severe engine carbon deposits. The most common cause of car shaking is a dirty throttle body or excessive carbon buildup in the fuel injectors. When there is too much carbon buildup inside the engine, the gasoline sprayed by the cold-start injector is largely absorbed by the carbon deposits, resulting in an overly lean air-fuel mixture during cold starts, making it difficult to start. 2. Ignition system issues. Check the condition of the spark plugs, high-voltage wires, and ignition coils. Poor performance of the ignition system or weak spark plug firing can also lead to such symptoms. The solution is to check if the spark plugs have excessive carbon buildup and replace them if necessary.

[DeEmersyn]

Air conditioning-induced car shaking is quite common in the CR-V. I've experienced it myself while driving my CR-V, and it's really frustrating. The main issue is that when the compressor starts, it puts extra load on the engine, like adding a significant burden. If the engine has carbon buildup or a dirty throttle body, idle speed becomes unstable, leading to shaking. Worn-out spark plugs or an inefficient ignition system are also common culprits, as problems become more apparent under heavy load. When the engine mounts wear out or age, their ability to absorb vibrations diminishes, making the shaking more noticeable when the AC is on. Last time I went for maintenance, the technician mentioned that this issue often appears in CR-Vs after a few years of use. He recommended regular intake cleaning and spark plug inspections to prevent most shaking issues. In short, don't ignore it—address it early to prevent minor problems from escalating.

[LillianLynn]

The shaking of the CR-V when the air conditioning is on is usually caused by the increased load on the engine management system. The compressor requires power, the engine has to compensate for the power, and the idle speed may fluctuate, causing shaking. Common factors include a dirty idle motor, a stuck throttle, or an insensitive air mass flow sensor, which become more apparent when the air conditioning is turned on due to higher demand. Spark plugs reaching the end of their lifespan can also easily cause vibrations, and issues like a loose or worn belt on the air conditioning compressor can affect the engine as well. I recommend starting with cleaning the throttle, checking the condition of the spark plugs, and also inspecting the engine mounts for any cracks. Timely maintenance can save a lot of trouble and avoid driving discomfort.

[RichardDella]

The compressor working adds load to the engine, with unstable idle speed being the main cause. Carbon deposits, ignition component failures such as spark plug misfires, etc., cause combustion imbalance leading to shaking. Worn engine mounts can also amplify vibrations. Checking and cleaning the throttle body and ignition system should suffice. CR-V owners can start with simple maintenance, and if that doesn't work, further inspect the compressor connection. Avoid frequent short trips to prevent carbon buildup from worsening the issue.