Thom's Four Wheel Drive

Fuel filters clean the dirt, dust and debris out of your fuel. Both gasoline and diesel-powered engines have them. The fuel filter is located in the fuel line between the fuel tank and the vehicle engine.CHICAGO auto owners don't need to filter their fuel because it has lots of grit in it; they need to filter it because it has some grit it in. Any dirt is bad for your engine. The cleaner the fuel, the better your vehicle engine will run.Over time, the small amounts of rust, dirt and contaminants in your fuel settle out inside the fuel tank. After about five years, this can amount to a quite a bit of sediment. This means that as your vehicle ages, your fuel filter has to work harder to screen your fuel: more sediment in your tank means more potential for grit in your fuel.The harder your fuel filter works, the more often it needs to be replaced. Check with your owner's manual to find out how often it should be serviced and how long you can expect it to last. CHICA ... read more

Knowing how their engine works can help CHICAGO drivers make informed decisions about auto care and prevent repairs to their vehicles. This is especially true when it comes to timing belts.An engine's power is generated in the cylinders. Inside the cylinder is a piston that moves up and down while the engine is running. Power is generated in a cycle that includes four strokes of the piston. First, the piston drops and a valve at the top of the cylinder opens to let in fuel and air. The piston then rises, which compresses the fuel and air. At this point, the spark plug fires, igniting the fuel and pushing the piston down. This downstroke transfers energy to the engine, which provides the power it needs to run. The piston rises again, and a valve opens to release the exhaust.All of this movement is orchestrated by a timing belt. The timing belt is so named because it keeps the pistons and valves operating in synch with each other, just as a conductor keeps all of t ... read more

Whether we're trying to save money, save gas or save the environment, most of us CHICAGO drivers have an interest in decreasing fuel consumption. We've all heard about ways to save money on gas in Illinois, but does it really add up to much? How much can we boost our fuel economy through preventive maintenance and more courteous driving?The US government has a website that actually answers that question. Let's look at some of the data and find out if any of these fuel-saving ideas are really worth the effort. We've all heard that a tune-up can improve gas mileage. It turns out that it can save us 4% at the pump. At $3.50 a gallon, that's 14¢ per gallon in savings, and at $4.00 a gallon, that's a 16¢ per gallon savings.Other common repair items can also save you at the pump. For example, if your oxygen sensor is faulty, it's not delivering the information to your engine's computer that allows it to calculate the right fuel-to-air ratio. The result? T ... read more

Most people don't love going to get their vehicle serviced, but it's one of those things you just have to do. So you might as well get the most of out of it. There are some steps you can take that will likely help you get the best results possible. For one thing, it's important to describe your problem (or problems) to the service advisor accurately and clearly. If your vehicle is making a noise, for example, take time to really listen to it and think of the best way to describe it. Does it increase in speed when you go faster? If you feel a vibration somewhere, where in the vehicle does it seem to originate? Some service advisors recommend writing things down. That way the driver won't forget any important clues that could lead to a successful resolution of the problem. Another thing is to make sure your vehicle is cleaned out and free of junk. That way the technician can access those nooks and crannies where some vital components may be. If your vehicle is full of strollers, boxes or ... read more

Pop quiz: What is a cabin air filter? A. A filter for your CHICAGO house?B. A fresh, piney scent?C. A filter for the passenger compartment of your car? Clever you, it's C.A cabin air filter cleans the outside air before it comes into the passenger compartment of your vehicle. It filters out common Illinois air particles like dust, pollen, spores, bacteria, pollutants, exhaust gas, odors and even sparrows.These high tech filters can block particles larger than 3 microns. By contrast, a grain of sand is about 200 microns.Not all CHICAGO vehicles have cabin air filters. They are fairly new on the scene in Illinois. Last check, about 40 percent of new vehicles sold in CHICAGO come with cabin air filters, but the number is growing every year. Cabin air filters make driving a lot more pleasant for people in CHICAGO. Your vehicle can be a haven during our Illinois allergy season with very little dust and pollen getting into the cabin. Of course, like all filters, the cabin air filt ... read more

Okay. You went to your local CHICAGO car wash, and while your vehicle was under the dryer, the Check Engine light started flashing. Panic! What did you just do? Something is seriously wrong with the vehicle! You head for the nearest CHICAGO service center, but on the way, the Check Engine light stops flashing and just glows red. Hmm. Maybe things aren't as bad as they seem. You decide to wait until payday to take your vehicle in to get serviced. In the meantime, the Check Engine light goes off. What? You decide the light must be faulty; maybe when it comes on it doesn't mean anything, or maybe it's just in your vehicle as some sort of scam to get you to pay for unnecessary repairs. You're glad you didn't take your car to the CHICAGO repair shop and resolve to ignore that Check Engine light in the future.Whoa! Let's look at what really happened. Your vehicle was under an air dryer. Your air intake sensor measured too much air running through the engine. It sent its repor ... read more

Today in the Thom's Four Wheel Drive auto care blog, we're going to talk to CHICAGO drivers about oil change intervals. It seems that as engine technology advances, oil change intervals become longer for Thom's Four Wheel Drive customers. For example, recently four of the world's largest vehicle manufacturer's shortened the published intervals for several of their engine models. They originally published intervals that extended out to a much as 8,000 miles (13,000 kilometers).In real world CHICAGO driving, the oil started to sludge up before the recommended change interval. Oil sludge is a thick jelly-like substance: quite literally petroleum jelly – like Vaseline. This goop was clogging vehicle small engine passages so the oil wouldn't flow to some parts of the engine. This resulted in engine damage. We see it too often at Thom's Four Wheel Drive in CHICAGO.The vehicle manufacturers began to offer an extended warranty to cover sludge damage. But there was a cat ... read more

When asked, most people think they are good at multi-tasking. Scientific studies, however, reveal that only around 2% of the population can truly demonstrate the capacity to effectively multi-task. For the rest of us who are not so biologically wired, no amount of practice can increase our effectiveness at multi-tasking. Turns out, multi-tasking is almost a superpower. Think of fighter pilots: capable of maintaining their orientation in three dimensional space and performing specific and highly complicated functions while accessing life threatening situations and coming up with an appropriate response. Admit it – you can’t do that. Yet when it comes to driving, we seem to think we are very capable of safely operating a motor vehicle with myriad distractions. 77% of young adults feel somewhat confident that they can safely text and drive while 55% claim it’s easy to text and drive. Can they possibly be right? Let’s look at some statistics. Nearly 23% of all accid ... read more

Those who know vehicles believe the steering system may be the most vital component of them all. Perhaps you've found over the years your steering has gotten loose. Or maybe suddenly, your steering wheel has gotten very hard to turn. Let's steer you in the direction of understanding why this may be happening. First, loose steering. This can likely be the result of wear and tear on the components that connect the steering mechanism with the wheels. Those parts can be ball joints, Pitman arms or tie rods. These parts take a lot of abuse on the road, thanks to railroad tracks, potholes, uneven surfaces: you name it. It's important that they be checked regularly and maintained at Thom's Four Wheel Drive. Second, the hard-to-turn wheel. Virtually all vehicles on the road have power steering. There are a couple of different types, though, so let's deal with each. By the way, when they fail, your vehicle's steering can suddenly go from easy peasy to really hard to control. Some vehicles have ... read more

Oil changes are probably the most recognized service on a vehicle. Almost all CHICAGO residents know about them. But do we know enough?Several decades ago, oil changes were fairly standard: every three months or 3,000 miles or 5,000 kilometers. But recent advances in both engine technology and oil quality have led to longer oil change intervals.Delayed or skipped oil changes are a problem for CHICAGO residents because they lead to the build-up of oil sludge in your engine. Oil sludge forms when engine oil breaks down, which happens with both time and miles. Obviously, driving will take its toll on engine oil, but the oil also breaks down even as the vehicle just sits in the garage. This is why oil change intervals are listed in both time and distance traveled, and the phrase “whichever comes first” is applicable.Oil sludge is essentially petroleum jelly. Imagine this stuff squishing around in your vehicle engine, pushing into small engine passageways and blocking pass ... read more