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Best Auto Repair, Memphis

1696 Bartlett Rd Memphis, TN 38134

901-383-4824
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Archive for May 2023

TCB your PCV (PCV Valve Replacement)

Posted May 28, 2023 11:17 AM

Your gasoline engine goes through some exhausting work.  Yes, it's truly exhausting, as in: it produces exhaust! And when your engine starts behaving like it's exhausted, such as running poorly or getting lousy fuel economy, the trouble may be something called a PCV valve.

Did you know it's a series of explosions that creates the power in your engine? The spark plugs ignite a mixture of gasoline and air and BANG! A whole bunch of those and you're engine is humming away. Leftover vapors from those explosions go into your crankcase, which is also a place where engine oil goes.  Those vapors still have a lot of unburned fuel in them, and if they had nowhere to go, they'd turn your oil into a thick mess called sludge, not good for a smooth running engine. 

Engineers came up with an idea. Re-direct those gasses building up in the crankcase into the engine's air intake and mix them with fresh air.  That way the unburned fuel could go through the engine again and produce power. It also means the unburned fuel doesn't pollute the air.  The part that makes that happen is called the Positive Crankcase Ventilation (PCV) valve.

Besides reducing pollution and preventing the oil from turning to sludge, the PCV valve also relieves pressure in the crankcase, reducing the potential for oil to leak. One of the reasons you should get your oil changed as frequently as your vehicle's manufacturer recommends is that it helps reduce chances for problems with the PCV valve.

After a while, the PCV valve can itself get gummed up and stick, and the driver may notice oil leaks, reduced power or engine hesitation.  That's why it's important to make sure the PCV valve is operating like it should, and often it can be diagnosed during a visual inspection by our technicians.  Replacing a PCV valve is usually quick and inexpensive.  After it's done, your vehicle will run with the performance and fuel economy you're used to.  Goodbye exhaustion!

D & B Automotiove
1696 Bartlett Rd.
Memphis, TN 38134
901-383-4824



I'm Cool With That (AC Exchange)

Posted May 21, 2023 8:48 AM

On a hot day, you want your vehicle's air conditioning to work.  When the air blowing out of your vents isn't cold, it's easy to think, "I'll just take it by the shop and have them top off my refrigerant." But while some people think air conditioning is that simple, it's actually not.

If your refrigerant is low, something has to have happened for it to be depleted.  Perhaps there's a leak in the system.  Or some hoses or clamps have failed.  If the system isn't evaluated by someone who knows air conditioning, it's possible that adding refrigerant will just be a band-aid solution.

It's also possible that contaminants have gotten into the refrigerant, such as carbon dioxide, nitrogen, argon, or air.  Some of those gases do not condense like refrigerant does which can increase the pressure inside the system and strain the lines and other components. At that point, the best course of action may be to have the old refrigerant (with its contaminants) bled from the system and have your AC recharged with new refrigerant.

Bring it to us, and we can inspect and test the system and all its components.  That will include a pressure test for leaks.  Most vehicle manufacturers don't have a service schedule for air conditioning systems, so one way to know when you should have it looked at is when it's not behaving the way it used to.  For example, it may not get cold as fast as it did before or even at all.

So, when hot air is exiting your vents when you want it to be cold, schedule an appointment and have a trained technician take care of it.  Are you cool with that?

D & B Automotiove
1696 Bartlett Rd.
Memphis, TN 38134
901-383-4824



More than Pads and Rotors (Brake Caliper Replacement)

Posted May 14, 2023 10:33 AM

You might be familiar with brake pads and rotors, two components of your vehicle's brakes that have to be regularly serviced.  Here's another important component of your brakes: the calipers.

Calipers are used in disc brakes, the type of brakes now found in most recently manufactured vehicles.  A caliper is the part of the brakes that squeezes the brake pads against the discs, or rotors, which turn with your wheels. 

There are different kinds of calipers, but the basic principle is the same.  You press down the pedal, brake fluid activates a piston or pistons that squeeze the brake pads against the disc and the friction slows down your vehicle.

While modern vehicles have a warning system to let you know it's time to get your brakes checked, your brake light usually goes on when your fluid level is low or your fluid pressure is low.  But you may have to look out for signals your calipers are the problem. 

If your vehicle pulls to one side when you brake, that could be a sign that one caliper isn't working right.  If you smell a burning odor coming from a wheel after a trip, there might be too much pressure from a caliper.  Grinding or squealing when you brake is another signal that it may be time to bring in your vehicle so we can check your brakes.

One way to minimize brake issues is regular inspection.  Have them periodically looked at when you bring in your vehicle for an oil change.  The good news is brake issues are more likely to be caused by pads or rotors wearing out.  Calipers last a lot longer, but even they will need replacing every so often.  

D & B Automotiove
1696 Bartlett Rd.
Memphis, TN 38134
901-383-4824



The Last Gas (Fuel Pump Replacement).

Posted May 7, 2023 10:41 AM

You're heading down the road and you notice your vehicle is sputtering, like it's running out of gas.  But the gauge show's it's still got a quarter of a tank.  So what gives?

It could be that your fuel pump is failing, meaning your engine is not getting enough gas to run properly.  While fuel pumps are built to last a long time, sometimes they fail.  Other symptoms you may have a bad fuel pump include your vehicle stalling and then refusing to start again, the engine overheating or a hum or whirr coming from around the gas tank.  Or, your Check Engine light may come on.

Most fuel pumps are in the gas tank. They have a small electric motor in them.   When you bring your vehicle to our service center, a technician will run tests to confirm the fuel pump is getting power to it but has failed.  Some vehicles have an access panel so the fuel pump can be removed and replaced. 

But in some vehicles that don't have that access panel, the technician has to drain the fuel and take the tank out of the vehicle to be able to replace the fuel pump inside.  Some parts such as brackets that attach the pump can be reused when the new fuel pump is installed.  Most technicians will recommend replacing the fuel filter at the same time the fuel pump is changed out.

If the technician has to remove the fuel tank, they'll also check for rust and corrosion and replace any affected parts.

Keep one thing in mind - your vehicle's fuel pump is in the fuel tank because it's kept cool and lubricated by the gasoline in the tank.  Try not to let your fuel level go below a half or quarter of a tank to maximize the life of your fuel pump.  Also, try to use Top Tier gasoline that has higher standards than some other fuels.  Your engine—and fuel pump—will thank you.

D & B Automotiove
1696 Bartlett Rd.
Memphis, TN 38134
901-383-4824



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