BEAR AUTO REPAIR

Your vehicle’s exhaust system works quietly in the background every time you drive. While you might associate it primarily with the muffler and tailpipe, the entire system performs several important functions that affect your vehicle’s performance, environmental impact and safety. Understanding how your exhaust system works can help you recognize problems before they become serious. Controlling Harmful Emissions Your engine produces exhaust gases as it burns fuel. Some of these gases contain pollutants that must be treated before leaving the vehicle. The catalytic converter plays an important role by converting harmful pollutants into less harmful substances. Oxygen sensors help the engine management system maintain the proper air-fuel mixture, supporting efficient combustion and emissions control. When these components malfunction, y ... read more

A chirping or squealing noise from under the hood can be easy to dismiss, especially if your vehicle otherwise seems to be running normally. However, these sounds often indicate wear or problems with the components that drive your engine’s accessories. Identifying the source early can help prevent a minor issue from becoming a breakdown. Worn or Damaged Belts The serpentine belt transfers engine power to accessories such as the alternator, power steering pump and air conditioning compressor on many vehicles. As the belt ages, it can become glazed, cracked or stretched. A worn belt may produce a high-pitched squeal, particularly during startup or acceleration. Contamination from leaking oil or coolant can also cause a belt to slip and make noise. Pulley Problems Your serpentine belt travels around several pulleys as the ... read more

Most of the time, you probably don’t pay much attention to what comes out of your vehicle’s exhaust. But if you suddenly notice thick or unusually colored smoke, your car may be giving you an important clue about what’s happening under the hood. The color of the exhaust can help narrow down the potential problem, although a professional diagnosis is the best way to determine the actual cause. White Exhaust Smoke A small amount of thin white vapor when you first start your car can be completely normal, particularly on a cool morning. This is typically condensation in the exhaust system and should disappear as the vehicle warms up. Persistent, thick white smoke is different. It may indicate that coolant is entering the combustion chamber. Possible causes include a damaged head gasket or another internal ... read more

Your car’s air conditioning should make the cabin more comfortable, not fill it with an unpleasant odor. If you notice a musty or stale smell when you turn on the A/C, it could indicate a problem within the HVAC system that deserves attention. Moisture Inside the A/C System Your air conditioning system naturally creates condensation as it removes moisture from the air. Normally, that water drains underneath the vehicle. However, moisture can sometimes remain inside the HVAC system, creating an environment where mold, mildew and bacteria can develop. The result may be a musty odor coming through the vents. A Dirty Cabin Air Filter Your cabin air filter captures dust, pollen and other contaminants before they enter the passenger compartment. Over time, the filter can become dirty or damp. Instead of helping keep the ... read more

You might assume that a vehicle sitting unused for several weeks is avoiding wear and tear. In reality, cars are designed to be driven regularly, and extended inactivity can create its own set of problems. Whether you've been traveling, working from home or simply haven't needed a second vehicle lately, here are some issues to watch for when it's time to drive again. A Weak or Dead Battery Your vehicle continues using small amounts of electricity even when it's parked. Security systems, computers and other electronics create a gradual drain on the battery. If the battery is older or already weak, several weeks without driving may leave you with a vehicle that won't start. Tire Pressure and Flat SpotsTires naturally lose air over time. When a vehicle remains in the same position for weeks, the weigh ... read more