Posted on Sunday 10 April 2022
Engines required a lot more maintenance in earlier times. You'd have to have your spark plugs, wires, rotors, caps, distributor points, fuel and air filters changed periodically. There were mechanical adjustments of a vehicle's timing, dwell, spark gap and idle mixture, too. Unless you like to tinker with old cars, a lot of those terms won't mean much to you. That service was called a "tune up" back then, and you can see why. But now, computers have reduced the number of maintenance items, and a tune up is a whole lot different than it used to be. In fact, in some vehicle service facilities, that term is also a thing of the past. A tune up of today would more accurately be called simply periodic maintenance. Now, most vehicles still have spark plugs and wires, fuel filters, air filters and PCV valves, and they should be inspected tested and/or replaced at regular intervals. Your vehicle's manufacturer has made recommendations on how often that ... read more
Posted on Sunday 27 March 2022
When you start up your gasoline engine car, you may not know that it's using the same ignition principles as it has for decades. You have spark plugs that require enough power so a spark can jump across a gap at its tip. Years ago, a vehicle's 12-volt system had to produce 15,000-25,000 volts to do that, so engineers came up with something called an ignition coil that bumps up the voltage. It also has to be done at just the right interval called timing. The first systems had a distributor, a mechanical device with a rotating disc that switched the power to the ignition coil on and off. That higher voltage then was sent to the spark plugs at the correct time interval. But the mechanical "points" had to be replaced and adjusted every 12,000 miles/20,000 kilometers. Engineers later replaced the switching mechanism with solid state ones, but they still needed replacement after 120,000 miles/200,000 kilometers. The next evolution came in the 80's when the distributor ... read more
Posted on Sunday 13 March 2022
This may have happened to you. You drive somewhere and get out of your vehicle only to try closing the door and it just won't stay closed! What a helpless feeling. You can't lock it; you can't leave it like it is. Or, let's say you head down to your vehicle to head out to work in the morning and you can't open the door. What are you going to do now? Vehicle doors take a lot of abuse. They are opened and closed hundreds of times and we expect them to just keep working perfectly all the time. They do require a bit of tender loving care. Let's take a look at two different scenarios of stuck doors. First: the door that won't close. It's a security issue. It's also a safety issue. You can't really safely drive a vehicle with a door that won't close. What if you or a passenger is tossed out? Sure, some people try to tie a stuck-open door closed or bungee it, but that's dangerous. It's best to get that vehicle to the serv ... read more
Posted on Sunday 06 March 2022
You may have heard at one time or another about something called a timing belt or timing chain in your engine. And you may know that if they fail… well, let's just say that there can be some major engine damage. So obviously, we want our timing belts and chains to be in tip-top shape. One part that helps keep them running the way they should is the timing cover. As you can probably guess, it's something that covers the belt or chain. The timing cover protects both belts and chains from dirt and road debris. Timing belts also need to be lubricated so their covers allow them to be lubricated as well. They have a gasket that insures a good seal for the engine. If that gasket breaks or develops a leak, then engine oil can escape, and loss of lubrication is never good for an engine component. Other symptoms of a failed timing cover are leaking coolant, a metallic sound coming from the front of your engine or your Check Engine light coming on ... read more
Posted on Sunday 27 February 2022
When it comes to your vehicle, driving it too much can cause some issues. But what about not driving a vehicle enough? That has consequences as well. Here are a few things that can happen if a vehicle isn't driven enough. When the engine doesn't operate, the oil isn't lubricating. That means some mechanisms that need periodic lubrication aren't getting it. And oil that sits around breaks down over time. In fact, some experts say you should change oil more often if your vehicle sits in the driveway than if you drive it regularly. You've heard that expression, "Take it on the highway and blow out the engine.” Well, carbon buildup used to be a problem in older vehicles. But the real culprit these days is moisture that builds up from combustion if your vehicle never gets hot enough to burn it off. That water vapor can mix with oil and cause sludge to form. There are many vehicle systems (battery, exhaust system, engine seals, etc.) that benefit fro ... read more
Posted on Sunday 20 February 2022
Most would agree they'd rather drive around in a clean, shiny vehicle than one coated with a layer of dirt. When warmer weather comes around, some of us are bound and determined to wash our own vehicles. And to protect the paint and its luster, there are a few things to keep in mind when you get out the bucket and soap. Cool body. It's not a good idea to wash a vehicle when the body is hot. If it's been sitting out in the sun or you've been riding around on a sunny day, make sure you cool your vehicle off by either moving it to the shade or wetting it down with cool water. The problem with washing a hot vehicle is that it's going to dry so fast, minerals in the water can form hard-to-remove spots on the paint. And some of those can be really difficult to get out. Best to avoid it. Slippery when wet. Make sure you wet your vehicle down thoroughly before you get the washing mitt out. Experts keep a couple of buckets of soapy water on hand ... read more
Posted on Sunday 30 January 2022
You expect your heater/air conditioner to work like it should. You have a control for temperature and one for fan speed. You even have a control for what vents the air comes out of. Don't be surprised one day if your blower fan develops a mind of its own and starts going crazy. Most of the time, you may find that it starts blowing at full speed, and nothing you do to try to control it does any good. This is what may be happening. Your blower motor has an electronic component called a resistor. It does what its name says; it offers resistance. When you want the fan to run more slowly, you turn the fan speed down. That resistor accomplishes that by turning its resistance up. When the resistor fails, the power has nothing to slow it and the fan speeds up. It's a small part and can fail due to age or corrosion. It's usually not an expensive part, either, but it's often found in a location that's not that easy for the technic ... read more
Posted on Sunday 16 January 2022
Ever wonder what one of the best things is to ever happen to your vehicle's engine? It's the little thing that usually looks like a can, the oil filter. Just like your kitchen sink strainer filters out errant particles of food from clogging your drain, the oil filter cleans out small particles that could cause your engine harm. Your engine operates in a dirty, hot environment and gathers a lot of tiny contaminants like dirt, dust, little metal shards and unlucky bugs that get sucked in. Get those things circulating in your engine and those little particles can cause friction, which starts wearing out those finely machined metal parts. You know how important it is to change your oil regularly. It's vital that you change your oil filter at the same time to keep the oil as close to brand new as possible. Most oil filters look like a metal can with some holes in the bottom. Inside there are carefully chosen materials that can screen out the contaminants while ... read more
Posted on Sunday 02 January 2022
You probably never thought about it, but your vehicle is like a rolling weather station. It can check the outside temperature, let you know when the roads are slippery and help you deal with rain. And how it does all those things is pretty cool. First, just like any weather station, a vehicle has sensors that measure the driving and weather conditions you find yourself in. Some of those sensors can control computerized systems in your vehicle to react to the weather. It depends on whether you have a 2-wheel, 4-wheel or all-wheel drive vehicle how those sensors will respond. Let's start with temperature. Most vehicles now have a thermometer that measures the temperature outside. It's usually in the front, and likely will tell you on the instrument panel what the outside temperature measures. But a temperature sensor will also tell your vehicle's computers to turn on or off certain systems like the heating or air conditioning. If your ambient tem ... read more
Posted on Sunday 26 December 2021
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