Car Repair World

Car A/C Problems And Troubleshooting Auto air conditioner repair is an inconvenience that no one wants to experience. Unfortunately, the uncomfortable feeling of driving to work during the summer with a broken AC unit is all too common. If your car’s air conditioner is causing you to feel the heat, then there are a number of possible root causes. Some of the most common types of vehicle AC repairs are listed below: Leaking Coolant Coolant is the liquid in your engine that produces cold air. As this liquid is pumped through a series of tubes and hoses via an AC compressor, it passes through an expansion valve that causes the coolant gas to expand and cool. If insufficient levels of this coolant are present in the AC system, then the result will be inadequate cooling. The most common cause of low coolant levels is a puncture or leak in the AC system. Rubber hoses and connections are prone to punctures, and will result in a loss of coolant as it flows through the system. An eas...

Coolant in Engine Oil Coolant getting mixed in engine oil Helpful Information Coolant runs throughout the engine block, cylinder heads, intake manifold, (some applications) engine oil cooler (if equipped) hoses, heater core and radiator. Visit - Cooling system . The engine cannot run with coolant in the oil system, catastrophic failure will occur. Do not run an engine once is coolant is discovered in the engine oil. These repairs can be tricky because they overlap and it can be difficult to tell which one is causing the problem before the repair has begun. Step by step guide on how to repair coolant in the motor oil. This article pertains to all vehicles except electric. Difficulty Scale: 4 of 10 Tool and Supplies Needed Flashlight Wrench set Socket set Protective eyewear and clothing Begin with the car on level ground with the engine "OFF" and the parking brake on. Step 1  - To check for coolant in the oil first remove the oil fill cap and inspect...

Blue Smoke from Exhaust Pipe Car Emits Blue Smoke From Exhaust Pipe Helpful Information Blue smoke is caused from several specific conditions inside the engine. This guide will help you determine what the problem is so it can be corrected. Blue smoke appears mostly at morning start up's because oil from the vehicle's engine is mixing with the gas inside the engine's combustion chambers, then burns together with the fuel from the injectors while the engine is running. This can result in an expensive repair, but not always. The more expensive, and usually terminal reason for blue smoke is the piston rings of the engine have worn out which is allowing engine oil to pass into the combustion chamber while the engine in running. In this case the engine is worn out and needs to be replaced. Best Practices Its important to note that if you decide to repair the engine, often you are looking at hourly repair rates plus parts and machine work. This is quite costly dependi...

Black Smoke From Exhaust Pipe Car Emits Black Smoke From Exhaust Pipe While Running Helpful Information Black smoke is caused when the mix of fuel and air inside the engine becomes un-balanced. Normal mixture is 14.5 parts air to1 part fuel. When the fuel to air mixtures change because of a malfunction the mixture can go as high as 14.5 to 2 or 3, two to three times the proper amount. The black smoke seen from the tail pipe is the excess fuel generated from the rich mixture. Malfunctions in fuel delivery or a leaking fuel pressure regulator will cause black smoke to be produced. The fuel injection system atomizes fuel by pushing it through a small nozzle of the fuel injector while under pressure. The computer system measures vacuum and air flow into the engine intake manifold to determine a proper amount of fuel that should be released. Airflow is controlled by the throttle body or throttle valve actuator (throttle) as fuel is distributed directly in each cylinder. The process ...

Low Power How To Troubleshoot Engine Low Power Issue Helpful Information Computer sensors operate within a prescribed specification, if these sensors become weak they can effect the engine power output without the computer detecting a problem, these half broken sensors need an data input scan tool to be detected and will cause havoc until replaced. Step by step guide on how to troubleshoot and repair an automotive engine that has low power output, this information pertains to combustion engines. Difficulty Scale: 5 of 10 Begin with the vehicle on level ground, engine off, in park with the emergency brake engaged. Step 1  - An engine's air filter is meant to pull impurities and can become clogged resulting in low air intake and low power.  Learn More Removing Air Filter Step 2  - If engine problems exist and the service or check engine light is on, use a code reader to retrieve the codes to make necessary repairs.  Learn More Check Engine Light...

Backfire Repair Troubleshooting Car Backfire Issues Step by step guide on how to repair an engine backfire problem. This guide pertains to most non hybrid vehicles. Difficulty Scale: 4 of 10 Tools and Supplies Needed Fuel pressure gauge Engine code scanner Protective eyewear and clothing Helpful Information There are two kinds of backfires, one is produced from the engine air intake and the other is produced from the tail pipe of the exhaust system. The cause for a backfire condition can vary depending on the malfunction of a particular system. Some backfires can be extreme enough to cause damage to related components. Anytime a backfire is observed immediately diagnose and repair as needed. If the engine is running rough it can produce a backfire. A backfire occurs when there is an imbalance in the air to fuel ratio required for your vehicle to operate properly. A common backfire situation occurs when there is a small leak in the air injection system that feeds t...