So you come out to start your car one morning and the Check Engine light on the dashboard comes on…and doesn’t go back off again. You can’t really notice any difference in the way the car runs and drives, but it’s on anyway.
What does it mean?
Since the late 80s, most engine functions have been controlled by a central drivetrain computer. This includes emissions controls, fuel metering and delivery, ignition timing, shift points and many other elements of drivability and performance. The drivetrain computer relies on information from a chain of sensors that monitor exhaust composition, camshaft position, throttle position and many other factors.
The voltage readings from any of these sensors are supposed to fall within a certain range. Whe ...[more]
Most will help your vehicle perform more efficiently, get better gas mileage and last longer.
Get rid of road salt on the undercarriage.
Road salt can damage your vehicle by eating away at its undercarriage. Use a garden hose with as much water pressure as your system can muster to loosen winter grime and salt. Or, if you have a movable lawn sprinkler that's low enough, set that under the vehicle to wash away what you can't reach.
Check the tires’ pressure.
Tire pressure changes about 1 pound per square inch for every 10 degrees Fahrenheit change in outside temperature, so it's important to check tire pressure after weather changes. Check your owner's manual for the recommended pressure f ...[more]
1. For performance and handling, the trend has long been toward fatter tires with a bigger footprint. That’s starting to change, though. Skinnier tires mean lower rolling resistance and better fuel economy, as well as a smaller aerodynamic profile. While fatter tires do handle better, tire engineers are making up the difference by designing skinny tires with a stickier tread formulation for traction and cornering ability.
2. Static electricity used to be a real concern for vehicles; if you’re old enough, you may remember seeing station wagons with a “ground strap” dragging along the pavement. It’s become a concern again, with newer tread compounds cutting back on the amount of carbon black in newer tires. The solution? Many tires are now designed with an “antenna strip” ...[more]