Tire World - Tech Tip Archives

There are numerous sensors that gather information and send it to the Electronic Control Unit (ECU), the brain of the system. The ECU uses this information to send directions to control how the engine is running.

So, when you push on the gas and your vehicle doesn't respond as expected, there are many, many possible reasons for the problem. Without sophisticated diagnostic equipment, the usually unsuccessful solution is to try changing parts until you maybe get it running better, which usually wastes a great deal of time and money. If you have an emission or engine control problem, an expert can be quite valuable.

Often, many of us notice and promptly ignore the check engine light. Any car with an emission control system has some sort of warning light for that system. If your check engine light comes on and is blinking, find the closest side of the road and stop. A leaking fuel injector can drip gas onto your exhaust system, which is usually very hot. This combination can start a fire under the hood but the cause can be hard to see.

Habit to develop: Pay attention to the warning lights and gauges in the dash plus how your car feels and is performing. If it doesn't feel right to you, it probably isn't. As the driver, you should be the first to notice.

Habit to develop: Try to avoid filling your car when the gas truck is at the station or has just left. Sediment from the bottom of the underground tanks can be stirred up and is more likely to get into your tank. Clean fuel is important as dirt can easily clog the tiny holes of fuel injectors. Ask us if a fuel injector cleaning is needed, especially if you don't add a fuel system cleaner to your tank every 3 months.

Clogged fuel filters are common. Watch for sputtering at high speeds or an engine that won't start.

The electric fuel pump on most cars can be heard when you begin to turn the key. It's good to listen for this sound so you will more easily recognize its absence.

So, when you see a check engine light, don't just put a piece of black electrical tape over it. Take it to Tire World for a complete fuel system inspection, diagnosis and, if needed, to have it properly repaired. A simple item like a malfunctioning oxygen sensor can reduce your gas mileage by 40%. Any reduction in performance or increased use of fuel may cost you more to ignore than to have fixed.