You may be faced by several car troubles that might give you signs that you need to undergo an auto tune up. Hassle it may seem, you should be aware that these should be taken care of as soon as possible. Here are some signs that you need to stop by for a tune-up:

Head Start. A head start happens if your car got zero maintenance. This issue is common and can be traced to an electronic component or a computer that has control over the ignition system.

Ignition Knock. If you hear an ignition knock when you are in the process of accelerating or climbing, car specialists may suggest to have your car undergo an auto tune-up. Knocking may also occur when there is a carbon buildup inside your engine. Although there are cars that are designed with a knock sensor that conducts corrective measures, they are not made to adjust serious disorder that may lead to bad engine performance or worst engine damage.

Power Loss. A filter that has not been changed for a long time may cause power loss. Other than this factor, there still exist a number of reasons for auto power loss which often can be detected if a diagnostic task is performed.

Exhaust Odor. Another engine problem is exhaust odor. The catalytic converter of your car may not be functioning well that is why this 'rotten egg' smell happens.

An engine may run ineffectively due to fuel malfunction, ignition error or even piston or bad valves which are internal engine conditions.

Car owners can tell if their cars are efficient by a simple computation of gas mileage which is equal to miles driven divided by gallons of gas used. If their car has a poor gas mileage, then it is time to consult a technician. There are factors that can cause this issue such as transmission malfunction, misaligned wheels, engine running too cold, dragging brakes and inflated tires.

If you observe that your engine chugs and coughs for quite a few seconds after shutting off the ignition, this can be dieseling. Reasons behind this trouble vary from inferior gas to excessive idle speed.