AUTONET TV

It's (Not) Complicated (Engine Air Filter)

While many components of your vehicle are complex and composed of lots of mechanical and electrical parts, there's one that isn't complicated but still important.  It's your engine air filter.

(And, we should point out, the engine air filter isn't to be confused with the cabin air filter.  The cabin air filter cleans air that goes into the passenger compartment while the engine air filter cleans air that goes into the engine itself.)

Why does your engine need a filter? Think of all the stuff–dirt, dust, and debris in the air¬–that gets kicked up on the road.  If that were to go unfiltered into your engine, it could damage other components.

There are many different materials used in an engine air filter, including paper, cloth (frequently cotton), and other synthetic fabrics.  The material is usually folded tightly to maximize the filtering capability over a relatively small surface.  

Before computers were employed to determine the proper mix of air and gasoline, a dirty air filter could contribute to a decline in fuel economy.  But a study of engine air filters done by the U.S. Department of Energy in 2009 found that in modern fuel-injected engines, computers can maintain the correct air/fuel mix even when an engine air filter is really dirty, minimizing effects on fuel economy.

That same clogged air filter, though, can affect your vehicle's performance, mainly how much power and acceleration it delivers.  In testing three different vehicles, a dirty air filter made the vehicles slower by about 6-12%.  That's something you'd definitely notice if you were driving.

But it happens slowly, over the course of several months, so you might not even know your engine air filter is dirty unless you bring it to us and have a technician inspect yours.  

There are many different types of engine air filters, from the ones made by the original vehicle manufacturer to aftermarket ones.  Some can increase your engine's performance; some can be washed and re-used but are generally more expensive.

Your service advisor can recommend several options for you, depending on the type of vehicle you drive and your driving habits.  Dirty, dusty roads will require more frequent engine air filter changes than cleaner drive routes, and each vehicle manufacturer recommends when your filter should be changed.  Keeping it clean will help your engine breathe a little bit easier.

L and M Motors Inc
400 W 53rd Ave
Anchorage, AK 99518
907-563-4994

Lubricate Driveshaft

See if any of these are happening to your vehicle.  You feel it vibrating excessively underneath when it’s running, or you hear strange clunking, grating, or grinding sounds coming from beneath.  Maybe it’s hard to turn your vehicle, or you can hear squeaking when you’re going slow.  Perhaps you feel a shudder when you step on the throttle.  

Any of those could be signs that your vehicle’s driveshaft might need lubricating, and it’s important to have one of our technicians check it out. Your vehicle’s engine puts out a lot of twisting power.  That force is called torque, and the driveshaft is the part that handles the job of transferring all that torque from your engine to the wheels.  If it’s a four-wheel or all-wheel drive vehicle, it will have driveshafts front and rear. 

Some driveshafts have different segments which are connected by couplings called U-Joints.   So that everything can glide along fine, that whole assembly needs to stay well lubricated.  Our technician can inspect the driveshaft and U-joints to make sure there aren’t any broken or excessively worn parts.  

Many manufacturers recommend servicing and lubricating the driveshaft at certain intervals, and it’s important to keep on that schedule.  It’s essential because poor lubrication can lead to a failure while you are driving, possibly causing other expensive parts to fail.  Not keeping your driveshaft lubricated or failing to maintain it regularly is the top cause of driveshaft problems. 

L and M Motors Inc
400 W 53rd Ave
Anchorage, AK 99518
907-563-4994

(Timing Belt)

You may have heard about an important part of your vehicle's engine called a timing belt, and many know that if that belt breaks, it can cause some very serious engine problems.  

Not all vehicles have them, and the ones that do generally have smaller engines.  The timing belt keeps the engine synchronized so that every time a spark plug fires, the crankshaft, camshaft, pistons, and valves are all working together.  Timing belts will eventually have to be replaced, and most vehicle manufacturers recommend when that should be.  Typically, it's around every 60,000-100,000 miles, or 100,000-160,000 km. It's a good idea to stick to your vehicle's schedule or be alert for signs that the timing belt may be failing prematurely.

Some of those symptoms? Maybe your engine won't even turn over when you try firing it up. You might hear a ticking or banging sound under the hood.  Perhaps you spot an oil leak or notice the engine misfiring.  If any of those are happening to your vehicle, we strongly advise you to bring it in to us so we can have a technician see what's causing the issue. 

Again, if your timing belt breaks, it can cause serious, expensive engine damage to valves and pistons. It is far better to have the timing belt replaced before it breaks.

Replacing it is fairly involved, and other associated parts, such as the water pump, thermostat, tensioner, and idler pulleys may be replaced at the same time.  That way, your timing belt is more likely to last another 60,000-100,000 miles/100,000-160,000 km without any problems. 

Timing belts are being used in fewer vehicles, with more and more using timing chains since they last longer.  If you're wondering if your vehicle has one, contact our service adviser who can check. Maybe it's time to schedule a timing belt replacement to keep your vehicle's engine parts working in harmony as they should.

L and M Motors Inc
400 W 53rd Ave
Anchorage, AK 99518
907-563-4994