AUTONET TV

Losing Your Cool (AC Condenser Replacement)

It’s always more comfortable in your vehicle when you can control temperature and humidity in the cabin. Air conditioning, which is standard on most newer vehicles, is a vital part of that comfort, and a key component of that system is the condenser.

The condenser converts the refrigerant gas into a liquid by cooling it down.  There are a few reasons the condenser can fail.  It can start leaking, which is usually caused by faulty seals and tubes, or debris from the road can damage it since it sits in a vulnerable spot at the front of your vehicle.  

Another way your condenser can be damaged is when bits of metal are released after your vehicle’s air conditioning compressor fails and are sent into the condenser. In both cases, you will have to have the condenser replaced as well as other components that are part of the system.

Here are signs that your condenser needs replacing.  When you turn on your air conditioning, it won’t make the air as cold as you’re used to it getting.  Or it may not get cold at all. Since other things can cause those symptoms, it’s best to bring your vehicle in to us to have one of our technicians determine where the problems are.

They’ll check the system’s pressure and thoroughly inspect for leaks.  If the problem is the condenser, they’ll replace it, refill the refrigerant, search for any more leaks in the system and give your air conditioning a final test to make sure it’s operating correctly.  

Keeping your air conditioning system working helps maintain the value of your vehicle.  It not only keeps the cabin cool when it’s hot outside, but also helps the defroster work properly and controls humidity in all seasons and climates.  Now, that’s very cool.

McPherson Automotive
1 E Park St
Du Quoin, IL 62832
(618) 542-9203
http://www.mcphersonautomotive.net

Avoiding Exhaustion (EGR Valve Replacement)

No, ERG isn’t the sound a pirate makes.  It’s a part in your vehicle that recirculates exhaust gas to reduce certain gases and pollutants in the atmosphere.  In fact, ERG stands for “Exhaust Gas Recirculation.”

One gas our vehicles may make when they burn fuel is nitric oxide, which can play a big role in creating smog and acid rain.  It’s better for our planet if our vehicles aren’t spewing that into the air.  

One inventive way of reducing it is by taking the exhaust and channeling it back to the vehicle’s air intake system. When it travels through the engine again, its composition is changed, and it comes out cleaner.  It also helps the engine be more efficient.

The EGR valve can fail after a while, and some signs you may notice are the engine is miss firing, it may suddenly lose power or your Check Engine light may come on.  You may also see your fuel economy decrease or hear your engine knock. A bad EGR valve can also make your vehicle fail an emissions test.

There are several different types, including newer ones that are electronically controlled rather than working on vacuum pressure.  They are found in newer gasoline and diesel vehicles. If you notice any of the symptoms of a failing EGR valve, bring your vehicle in so a technician can check to see if your EGR is still up to its “exhausting” job.

McPherson Automotive
1 E Park St
Du Quoin, IL 62832
(618) 542-9203
http://www.mcphersonautomotive.net

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. 

McPherson Automotive
1 E Park St
Du Quoin, IL 62832
(618) 542-9203
http://www.mcphersonautomotive.net

U and your U-Joints (Lubricate U-Joints)

If your vehicle’s power goes to the rear wheels, then you have something called U-joints in the drivetrain. U-joints are connectors that allow the rotating power from your vehicle’s engine to deliver its power through a driveshaft to make the rear wheels rotate.  You need U-joints because the surfaces you drive on aren’t perfectly flat, and the driveshaft has to allow for some flexibility when you are traveling over uneven surfaces.

As you can imagine, the U-joints have to move and flex a lot as your vehicle is going down the road.  They have bearings in them to allow that flexibility, and those bearings are lubricated when your vehicle is made.  Some U-joints have lifetime lubrication and are not designed to be serviced.  When they fail, they have to be replaced.  Others have grease fittings on them that need periodic lubricating by a technician at intervals recommended by your vehicle’s manufacturer. 

There are signs you can look for that your U-joints need attention.  You may hear a clunk when the gears shift into drive or reverse.  You may feel your vehicle vibrate as you move down the road.  Other signs are leaks at the back of your transmission or a banging sound right before you lose power.  Sometimes, though, if you wait until you notice these symptoms, the U-joints may already be damaged.  

That’s why it’s important that your vehicle’s U-joints be periodically inspected and lubricated.  At the same time, a technician should thoroughly inspect the driveshaft and other connected components.  

Keep your U-joints in good shape, and both of U will continue to enjoy years of reliable transportation.

McPherson Automotive
1 E Park St
Du Quoin, IL 62832
(618) 542-9203
http://www.mcphersonautomotive.net