Experiencing a vibration when driving up a hill is a sign that something is wrong with your car’s driveline. It could be with the CV axles, CV joints or driveshaft U-joints, or it could be from something else.

Basically, the weight of the powertrain isn’t being properly supported and the result is vibrations in the body. You can visually inspect the mounts and replace if needed. On very rare occasions, mechanical issues can cause movement extra movement in the engine that you can feel while operating your Honda.

When the inner CV joint is damaged or begins to fail, you will notice your car vibrating under hard acceleration. As it gets worse, the minor vibrations turn to violent shaking when under load. Damaged CV joints usually occur because of a tear in the joint boot. The only fix is to completely replace the CV joint.

An acceleration problem is usually the result of insufficient fuel, air, or spark during the combustion process. Worn-out spark plugs or the electrical cables attached to them are one of the most common causes of cars stuttering.

A stuck or binding throttle plate, either as a result of grime, or a faulty throttle body motor can produce the symptoms you are experiencing. Worn motor mounts can also produce similar symptoms. Worn mounts can cause the vehicle to jerk as a result of the engine moving back and forth in the engine bay.

You could have a damaged or broken motor mount. Motor mounts are the things that attach the engine to your vehicle’s frame. That sounds serious because it is, and damage to one or more of the motor mounts can allow the engine to vibrate and move around when you press the gas pedal.

An engine that is doing a rough idle when cold can also be the result of faulty spark plugs or damaged spark plug wires. If the damage in the engine and the spark plugs is severe enough, you might also notice that your engine has begun running rough while driving or has a rough idle when cold.

Dealing with a Rough Idle on a Cold Engine When one or more cylinders fail to completely burn the air fuel mixture, raw fuel enters the exhaust system and can seriously damage the catalytic converter.

Based on the diagnosis, common repairs for this code include:

1. Repair or replace vacuum leaks.
2. Repair or replace bad spark plugs, ignition coils, or plug boots.
3. Repair or replace shorted or open circuits or connectors.
4. Make sure there’s good amount of fuel in the tank.
5. Replace ECT sensor.

Low or high fuel pressure from a dirty fuel filter, defective fuel pump, clogged fuel tank strainer, bad fuel regulator or dirty/clogged fuel injectors can cause rough idling. Try replacing the fuel filter and add fuel injector cleaning treatment to your fuel tank to clean and hopefully unclog your injectors.