Why Does My Engine Shake
Cobb Tire and Auto Repair Greenville SC 29615
Computer diagnostic Cobb Tire and Auto Repair Greenville SC 29615
There are many reasons why your Engine may be Shaking while you are Driving. Let’s go over the 3 most common.
Your car is a big maneuvering computer system. The onboard computer runs everything. For the engine to run smooth, the ignition system, the fuel delivery system and the air delivery system must be working correctly.
The most common issue that we come across is faulty ignition at one or more cylinders. This is usually due to a bad spark plug or bad direct ignition coil. Sometimes this problem will occur because of a faulty electrical system. A bad wire in the harness or a bad electrical connector is an example of this. A faulty onboard computer can also cause this issue as well, but this is rare. Without the correct ignition spark, the engine will run rough.
Another issue that we come across is a fuel delivery problem. The electric fuel pump, located in the fuel cell, pumps the fuel to the individual fuel injectors. When the onboard computer needs gas, it turns on the fuel injector to get it. A faulty fuel injector can cause too much fuel or not enough fuel which will cause a rough running engine.
The third issue is an air delivery problem. The fuel from the injector will not ignite without a mix of air. The air supply travels into the motor through the front of the vehicle. It travels through the air filter and then through metering sensors. The sensors measure the volume of air coming in. When you push the throttle pedal down, the throttle valve lets air into the motor to run the engine. If the engine is getting too much air or too little air, the engine will run rough.
These problems can be tough to figure out. It will require Test Equipment and Computer Scanners to perform engine diagnostics to find and correct a problem. Cobb Tire and Auto Repair can help you with this.