If you have an internal combustion vehicle, you know it has a lot of hoses that carry various fluids.  And if you have a heater in your vehicle, you'll have heater hoses. A heater hose connects to and from the engine so some coolant can be circulated through a little radiator called a heater core.  In cold weather, that heater core acts as a heat exchanger to heat up your cabin. Even in the hot weather, the heater hoses can prove problematic.  That's because they may remain pressurized even though you're not running your heater.  Heater hoses are made out of tough materials since they must handle heat and pressure.  But even the durable rubber, plastic and metal they are made out of can crack or leak from years of use.  That means coolant can be sprayed out into the engine compartment or leak onto a driveway or garage floor.  You may be able to see a puddle of coolant under your vehicle or perhaps smell the odor of the coolant under the hood.  So ... read more

No one likes to be greeted in the morning by having someone screech at you.  The same goes for a loud, high-pitched noise your vehicle greets you with every time you start the engine.  If you're wondering if that's normal, no, it isn't.  And it is worth getting checked out.  The good news is that it might be nothing serious.  Then again, it may be. The first things to suspect any time you hear a high-pitched sound coming from the engine are belts.  They have tension on them and they're trying to turn lots of different pulleys, pumps and other equipment the engine needs to work properly.  The noise could come from the belts starting to wear out and dry out. If one of those belts breaks at an inopportune time, not only can it strand you somewhere, the damage to the engine could be very expensive to fix. Other things that will cause a high-pitched sound are the pulleys and tensioners.  The tensioners keep the right amount of pressure on the belts an ... read more

You may have had a friend whose vehicle was the victim of hungry rodents.  After all, mice, rats and squirrels—even rabbits—have been known to gnaw on wires in engine compartments, causing vehicle electrical systems to go haywire.  They can disable a vehicle completely and be very expensive to fix. In 2017, some drivers noticed their vehicle's wiring was being chewed and found out the automaker was using a relatively new material for covering their wires: soy.  Many of the repairs to their new vehicles weren't covered under warranty by the manufacturer when it was discovered rodents were eating the wiring.  So the owners filed a class action suit, saying the soy covering was essentially baiting the critters.  The automakers tell a different story, saying mice, rats and squirrels have been chewing through wire insulation long before it was made out of soy.  Regardless of what the insulation is made of, vehicle owners should make sure rodents are ... read more

Perhaps you've heard someone use the term "loose steering." And it's pretty much what it sounds like.  You turn the steering wheel and the vehicle's wheels don't seem to go exactly where you thought you were pointing them.  You have to constantly make steering adjustments.  Loose steering is sloppy steering, and it can be a safety hazard.  You need to be able to control your vehicle with pretty much the same precision as the way it was when it came off the assembly line.   If the steering in your vehicle is starting to feel loose and sloppy, there may be some significant suspension issues that need examining by a trained technician. How do you know if your vehicle needs to be looked at? Try turning the steering wheel and see how much play is in it.  One rule of thumb: if you can turn it the distance of a quarter and a dime placed side by side without seeing the outside wheels move, it's time to have it inspected by one of our technicians. Our John's A ... read more

Your vehicle's engine makes a lot of heat when it's powering you down the road, so it needs a way to get rid of that energy.  That's why your vehicle has a cooling system, complete with a radiator and one or two radiator fans, also called cooling fans.  Those fans make sure air keeps moving across the radiator so that the heat stored in the coolant can be dissipated outside when the vehicle is stopped or not traveling fast. Radiator fans can develop problems and can stop working properly or stop working altogether.  Some signs to look for? If you're driving slowly and idling and you see your temperature gauge moving toward the red or hot zone, that could spell trouble.  Another thing you may notice when a radiator fan is failing is that there may be a loud noise coming from the engine compartment. There are two types of radiator fans.  One is mechanically connected to the engine and uses the engine's rotational energy to turn it.  The other is an electric ... read more

If you keep up on technology trends, then you may be intrigued about synthetic motor oil.  It was introduced in the 1960s when Mobil came up with it.  Mobil's oil was different from conventional motor oil because it was first broken down to its basic molecules.  Then, Mobil removed additional impurities from crude oil and "tailored them to the demands of modern engines." Synthetic oil is becoming more popular now because of its advantages over conventional oil. It's more resistant to sludge forming in an engine.  It is more efficient and protects engines better under temperature extremes.  Because it allows drivers to go longer between oil changes, many feel it's more convenient.  The downside is that synthetic oil is more expensive, but because it doesn't need changing as often, the cost can be pretty comparable in the long run. Those who drive high performance vehicles (think Audi, BMW, Mercedes) are already using synthetic oil if they're following their ... read more

When the leaves fall, you might take a sightseeing trip to see them at peak color.  Or you may simply live in a spot where there are a lot of trees.  When those leaves get wet, you'd be surprised to learn just how slippery they can be.  We all know ice is slippery to drive on.  What causes tires to slip on ice is a thin layer of water that comes between the road and your tires.  Wet leaves can have the same effect.  The surfaces of leaves are super slick when they're dry, even worse when you add a little moisture.  There's one other thing about leaves.  They are smaller than each tire's footprint, so your tread grips the pavement with uneven traction. One study showed that your stopping distance can more than double on a surface covered with wet leaves when compared to that same road when it's dry.  Double! That can spell trouble.  So if you find yourself heading into an area with wet leaves on the road, slow down before you get into a ... read more

It's one of those things that can happen on a multi-day road adventure or a quick trip to the grocery store.  You hit a pothole, go too fast over a speed bump, nail a curb.  When it happens, you think, "I wonder if that was hard enough to do any damage?"  But things seem ok and you continue on your way.  Keep in mind that any blow to your vehicle's suspension can throw it out of alignment.  It can be a hard knock from the road or from another vehicle, such as being involved in a minor accident.  When your suspension is out of alignment, it means that the wheels aren't all pointing where they should.  And after a while, it can make your tires wear unevenly and cause problems with steering and handling. Let's go back to that pothole or curb you hit hard.  Even though you think there was no damage done, if you wait until you see tire wear, you may need to replace all four tires, not an inexpensive proposition. That's why it's a good idea to make sur ... read more

Let's say you live in a cold climate where the snowy, icy weather challenges you to clear the salt and debris tossed up on your windshield.  You push your windshield washer switch expecting a good stream of fluid so the blades can wipe the glass clean. Yet nothing comes out.  Nada, zip.  What's going on? You know you filled up the windshield washer reservoir within the last week or so.  Well, there could be a few things causing your windshield washing system to fail.  One culprit? The hoses that are supposed to carry that fluid from the washer pump to the spray nozzles may be frozen, or maybe they're cracked and leaking. It could be the nozzles themselves are stopped up, either iced up or jammed full of debris.  Your windshield wiper/washer switch could be worn out or the electrical system may not be conducting power to the washer pump.  It's important that this system work properly, especially on days when the sun may be in front of you and your wind ... read more

At John's Automotive Care, we occasionally see severe tire damage that could have been prevented with proper wheel alignment. During a John's Automotive Care alignment service, your vehicle is put on an alignment rack where the tires,steering and suspensionparts are inspected for problems. Then the alignment is charted and checked against the vehicle factory settings. Adjustments are made to bring the wheels back into alignment. This gets all four wheels moving in precisely the same direction.If you don't remember hitting a pothole, how do you know if your wheels are out? The most obvious sign is that your vehicle pulls to one side. Also, your steering wheel may not be centered when you're going straight. If you're in the habit of checking your tire wear regularly, you may notice the edges of one or more tires rapidly wearing down. You should have your San Diego auto service center look it over. Of course, if you've been in an ac ... read more