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Thom's Four Wheel Drive

Monthly Archives: April 2023

I NEED All Wheel Drive (Pros and Cons of AWD)

So winter has arrived and you don't feel confident in how your 2-wheel drive vehicle does in the snow and ice.  You envy all those people with all-wheel-drive (AWD) and 4-wheel-drive (4WD) cars, trucks and SUVs.  You start thinking, "I need one of those.  I'll be able to go anywhere without any worries."  The truth is there might be another option for you that you might not have thought of.  Sure, you've seen the ads that tout the advantages of AWD and 4WD, and some of the videos make it look like they can handle everything Mother Nature can throw their way.  The truth, though, is that vehicles with drive wheels at all four corners can't stop any more quickly than those with 2-wheel-drive.  Yes, AWD and 4WD vehicle have advantages when it comes to acceleration, but when it comes to stopping and handling, they generally don't.  If you buy a new AWD or 4WD vehicle, you are going to spend thousands of dollars.  Maintenance and upkeep costs are ... read more

PCV Valve: What Is It?

Most CHICAGO drivers know something about preventive maintenance on a vehicle. We know we should routinely replace the oil and wiper blades and other fluids. But have you heard of a PCV valve ? This little car part needs to be replaced regularly or it can cause some serious problems in your vehicle engine.PCV stands for Positive Crankcase Ventilation. The crankcase holds your motor oil and is located at the bottom of your engine.When fuel is burned in your engine, it produces waste gases that are mostly vented out through your exhaust system. But some of these gases push their way past the pistons and into the crankcase. There, these gases can mix with motor oil to produce oil sludge, which can damage vehicle engine parts through corrosion and by clogging engine passages. CHICAGO vehicle owners should be advised that if the engine is running at high speeds, these gases can also cause pressure inside the crankcase to build up. This pressure, in turn, ca ... read more

Categories:

Exhaust

Helping CHICAGO Drivers Get the Right Tires

Every CHICAGO vehicle owner has to purchase tires at some time or another, so it's a good idea to understand what the choices are. The best seasonal performance is achieved by purchasing tires to match the season you are driving in. Summer tires are designed for hot temperatures. The tread is engineered for good traction on dry or rainy Illinois roads. But the rubber compound in summer tires gets stiff when temperatures drop below 45°F (7°C), and snow and mud can pack into the tread, reducing the traction of the tire.Winter tires are designed for good traction on snowy surfaces. The tread actually throws snow off of the tire as the wheel turns. The rubber compound in a winter tire is soft so that it will remain flexible at temperatures below 45°F (7°C). At higher temperatures, however, the softer rubber wears down rapidly.All-season tires sacrifice some of the extreme performance of summer or winter tires, but they maintain adequate traction in either type of CHICAGO w ... read more

Categories:

Tires and Wheels

Exhaust Service at Thom's Four Wheel Drive in CHICAGO

Whenever they hear the term "exhaust service," most CHICAGO residents think about exhaust pipes and mufflers. Well, actually, exhaust service at Thom's Four Wheel Drive is a lot more comprehensive these days. For example, catalytic converters were mandated in 1976 and on-board emission control computers in 1990. Governmental emissions requirements have forced manufacturers to come up with much more sophisticated ways to comply with environmental regulations.Exhaust service has really become exhaust and emissions service. High-tech computer controlled emissions devices are now a big part of exhaust service. Because it is so sophisticated, your recommends you have your emission system checked out by a qualified CHICAGO exhaust technician regularly to make sure everything is working right - usually every 6 months or 10,000 miles/16,000 kilometers.If your Check Engine light comes on, especially if it's flashing, get your car looked at right away. Technicians at Thom's Four Wheel Drive in C ... read more

Categories:

Exhaust

What is a TPS? (Throttle Position Sensor)

You know you have an accelerator pedal; step on it and your vehicle is supposed to go.  But did you know there is a part in your vehicle that keeps track of where the throttle is? It's called the Throttle Position Sensor, or TPS. The TPS is a sensor that helps your vehicle figure out the right mix of air and fuel is reaching your engine.  It does that by keeping track of the throttle and sending that information to your vehicle's computer.  Other factors play a role in how well your engine is performing, including air temperature, how fast the engine is turning over and air flow.  When the TPS isn't working right, you may find your vehicle won't accelerate or doesn't have the power you're expecting when you press on the accelerator.  In some cases, it may accelerate on its own.  Sometimes your vehicle won't go over a certain speed.  Your Check Engine light may go on. Any of these symptoms should be checked out soon.  If your TPS stops working rig ... read more

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