Common questions

Is it safe to drive with door ajar warning light on?

Is it safe to drive with door ajar warning light on? In most cases, it’s safe to drive your vehicle with the door ajar warning light illuminated, as long as you have checked that all of the doors and the trunk are securely closed. But if your interior lights remain on, that’s a different story. When is a car door said to be ajar? When a door is not entirely closed slightly opened, it is said to be ajar. In the context of our discussion, a car door is ajar when any of the doors is not firmly closed. With...
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What is covered under manufacturers warranty?

What is covered under manufacturers warranty? A manufacturer's warranty is also called a factory warranty. It usually covers parts and systems that break down due to flaws or defects in factory-installed parts. Typically, a warranty is offered on any new or certified pre-owned vehicle and covers any defect or breakdown that occurs from the manufacturer's design. Who pays for repairs under warranty? If your repair or replacement is covered by the warranty, you won't have to pay for the service. The cost of the non-covered repairs can be extreme. Because of this, you should get to know all of the...
Common questions

What happens when the distributor rotor and cap fail?

What happens when the distributor rotor and cap fail? Excessive or unusual engine noises Your vehicle may make some very strange noises if the distributor rotor and cap are malfunctioning – specifically because the cylinders will try to fire but fail. You might hear a tapping, clicking, or sputtering sound when the distributor rotor and cap are failing. Can a bad distributor rotor cause an engine misfire? Engine misfires can occur for a number of reasons. Checking your distributor rotor and cap to see if they need to be replaced is one way to ensure that everything is in solid...
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How does a light driver work?

How does a light driver work? An LED driver rectifies higher voltage, alternating current to low voltage, direct current. 2. A change in voltage could cause a change in the current being supplied to the LEDs. LED light output is proportional to its current supply, and LEDs are rated to operate within a certain current range (measured in amps). How do LED light drivers work? An LED driver is an electrical device that regulates power to an LED or a string of LEDs. Forward Voltage is the amount of volts the light emitting diode requires to conduct electricity and light...
Easy tips

What happens when there is no fuel in the fuel pump?

What happens when there is no fuel in the fuel pump? This also verifies that the engine has no fuel pressure. Electric fuel pumps on electronically controlled fuel injection systems need to produce enough “high” pressure to allow the injectors to produce a sufficient spray of atomized fuel into the intake path (or into the combustion chamber in a direct-injection system). Why does my car have no fuel pressure? Many people recognize this sound every time they start the car but don’t realize it is the fuel pump running. If you “DO NOT” hear the buzz of the fuel pump;...
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What to do if your fuse blows on your car?

What to do if your fuse blows on your car? Look for a wiring harness that fell down onto hot exhaust parts. If everything looks okay, unplug the O2 sensors, then if the short appears to be gone, reinstall the ASD relay and fuse then try to start the engine. Why does my TCM fuse blow when I start the engine? Unplug those sensors. The ignition coil and injectors are in this circuit. They are turned off by the Engine Computer removing their ground circuits, so even if one of those parts were shorted, the fuse wouldn't blow until you...
Easy lifehacks

What is a dirty sock syndrome?

What is a dirty sock syndrome? “Dirty Sock Syndrome” refers to when a foul-smelling, mold- or mildew-like odor comes from your air conditioner when you first turn it on. That bacteria and mold then gets blown into your home when your AC system turns on. Why does my air conditioner smell bad when I turn it off? However, a burning scent can be indicative of a mechanical problem with the AC fan or compressor. The solution: Turn off your air conditioner and check that the burning odor isn’t coming from the actual air conditioning equipment. If it is, call your...
Easy lifehacks

Where is the MAP sensor on my car?

Where is the MAP sensor on my car? The replacement job itself is very fast. The MAP sensor is located on or near the intake manifold. It is only fastened down by a clip or screw so it will be easy to take this off and replace the sensor. The mechanic will check the sensor and make sure it is operating properly. What does the MAP sensor on a fuel injection engine do? The MAP sensor can be found on most fuel injection engines made today. These are engines that use high pressure to pump gasoline which then vaporizes it....
Common questions

Why does my starter keep running after I start the engine?

Why does my starter keep running after I start the engine? Starter Stays Running, After The Engine Started. When you start the engine and release the key the circuit will, discontinue the power to the starting motor. If this stays on after the engine has started, the main contacts in the solenoid, have most likely failed. Do you know the signs of a failing starter motor? Knowing the signs of a failing starter motor, can help you diagnose the problem. When Diagnosing starter motor problems, always start with the battery. So, for your starter motor to work properly, your car...
Common questions

Why is my heating unit blowing cold air?

Why is my heating unit blowing cold air? Your furnace may be blowing cold air because the filter is too dirty. A dirty air filter blocks airflow over the furnace's heat exchanger, causing it to overheat. When overheating, your furnace can trip a high limit switch, causing the furnace burners to shut off so that the heat exchanger does not crack. Why does the air blower blow when the AC is on? If your thermostat switch is set to ON, that means the blower will run constantly—even when your system isn’t cooling your home, which will result in warm air...