Thom's Four Wheel Drive

Many CHICAGO drivers probably don't think of their shock absorbers as an important safety system; but that's just what shocks and struts are. They're all about ride control – keeping your vehicle tires in contact with the road and managing body motion.Every time you hit a bump or pothole on a CHICAGO road, your tire wants to bounce up. The bigger the bump, the higher the bounce. Your shocks or struts push down on the tire to maintain the traction you need to start, stop and turn.If you've ever ridden in a vehicle with bad shocks, you know how it wallows on corners. The front end dives when you hit the brakes and the rear end squats when you accelerate. It's not only uncomfortable, it is difficult to handle.You may have heard vehicles described as having “flat cornering." That means that when you take a corner, the body doesn't roll very much. When shocks start to get worn, your vehicle will roll more on corners. The weight of your vehicle's bo ... read more

Starting in 1996, Thom's Four Wheel Drive service technicians have been able to use a standardized diagnostic system to help determine what is wrong with a vehicle. This diagnostic system works in tandem with the Engine Control Modules for each vehicle's engine. The Engine Control Module is a computer that monitors and controls many engine functions.Sensors throughout a vehicle send readings to the Engine Control Module. These readings help the computer make adjustments in various vehicle systems to allow for constantly changing driving conditions and even to compensate for minor problems. However, if the computer encounters a situation it can't adjust for, it turns on the Check Engine light. (The Check Engine light is called the “service engine soon” light on some vehicles.)If the Check Engine light is burning steadily, it indicates a problem that needs to be taken care of soon. If it is flashing, however, the vehicle need ... read more

A recent report stated that over 80 percent of the vehicles on our CHICAGO, Illinois, roads have one or more service or repair that's needed but hasn't been taken care of. Now that's a lot of undone service. That translates into something over 160 million vehicles in North America alone. Some of the neglected items are minor. Others are serious safety concerns.There are several reasons we hesitate to take care of recommended services, especially services that our CHICAGO automotive advisor recommends when we're in for something else, like an oil change.The first issue boils down to comfort with car care. We don't always feel we know enough to make good decisions. Some of that can be attributed to the fact that vehicles are so reliable these days. They almost become an appliance. Of course you love your vehicle, but if you don't have to worry about it breaking down all the time, you're not forced to think as much about preventive maintenanc ... read more

Your alternator makes electricity to start and run your engine and all of the vital electrical systems in your vehicle. That’s everything from the on-board computers to the turn signals. And of course there is the entertainment system, seat heaters, power windows and everything you plug into the power outlets. After your alternator makes enough electricity to do all that, it recharges your battery with what’s left over.When CHICAGO drivers constantly have a low or dead battery, the alternator is usually a prime suspect. However, the alternator is just one vital component of the starting/charging system, and a problem with any of the other components could be the actual cause.In addition to the alternator, the charging/starting system includes the battery, starter, serpentine belt system and all of the electrical cables that connect them. Your Thom's Four Wheel Drive service advisor has a systematic process of testing components and connections to get to the source of y ... read more