That pesky Check Engine Light that occasionally illuminates on your dashboard is the first indicator that something may not be right. It is incredibly annoying and tends to appear at the worst possible time, but ignoring it can cause bigger issues down the road (literally). There are numerous reasons that can trigger the check engine light ranging from a loose fuel cap to a problem with the ignition. To help ease the stress, we have compiled a list of common reasons as to why your check-engine light may come on. A LOOSE OR FAULTY FUEL CAP A loose fuel cap is one of the most common reasons as to why your check-engine light will turn on. The fuel cap is essential to sealing the fuel system and maintaining pressure within the fuel tank. It also prevents gas fumes from leaving the fuel tank and keeps the whole system under the correct pressure. If you get gas and your check engine light turns on right away, pull over and make sure it is fastened all the way – or not on top of yo ... read more