- Engine misfire:
A misfire occurs when one or more cylinders in your engine are not firing properly. Check the spark plugs, spark plug wires, and ignition coil to ensure they are all properly connected and functioning.
- Fuel injector issues:
Faulty or dirty fuel injectors can prevent the engine from receiving the proper amount of fuel, which can cause a rough idling and loss of power.
- Vacuum leaks:
A vacuum leak can cause your engine to run lean and missfire. Check the vacuum lines and hoses for cracks or loose connections.
- Catalytic converter:
A clogged or failing catalytic converter can cause the engine to run rough and lack power.
- Faulty oxygen sensor:
The oxygen sensor monitors the amount of oxygen in the exhaust and adjusts the fuel mixture accordingly. A faulty oxygen sensor can cause the engine to run rich or lean and cause rough running.
- Worn-out engine mounts:
Bad engine mounts can cause the engine to move excessively, which can create a rough idling and vibration.
- Low compression:
Low compression in one or more cylinders can cause a rough idling and loss of power. This could be caused by worn piston rings, a bad head gasket, or other engine issues.
- Transmission problems:
A transmission that is slipping or has other issues can cause the engine to rev higher than normal and create a rough idling.
- Computer issues:
The Engine Control Unit (ECU) controls many aspects of the engine's operation, including the fuel mixture and ignition timing. A faulty ECU can cause a variety of problems, including rough idling and loss of power.