Conventional Or Synthetic Engine Oil? How To Choose The Right Motor Oil
In recent years, the variety of different motor oils that are now available to consumers has multiplied exponentially. To keep up with the lubrication requirements of all the different vehicle manufacturers, oil companies have had to expand their product lines to include new ultra-low, multi-viscosity, fuel-saving oils, as well as products with special additive packages for specific engine applications.
Turbo Trouble: How Turbochargers Work
Turbochargers are great for adding power to any gas or diesel-powered engine, but are especially useful in small displacement engines. The boost to airflow that a turbocharger provides increases the breathing efficiency of the engine for more horsepower and torque.
8 Problems That Can Be Resolved By Reflashing
Developing the in-house capability for reflashing and reprogramming is critical for shop productivity and customer retention. This article covers seven tools you need for reflashing as well as eight problems that can be resolved by reflashing.
How Oil Change Habits Are Killing Turbos
Turbochargers are used to enhance an engine’s performance and optimize combustion. To achieve good and complete combustion in the engine, a mixture ratio of 2.2 lbs. fuel and approximately 33 lbs. air is necessary (stoichiometric fuel ratio). During turbocharging, the density of the intake air is elevated and the air volume increased.
Audi Fuel System Diagnostics
When a 2009 Audi A4 was towed in the other day, and Code P0087/16471 “Fuel System Rail Pressure Too Low” was found stored in the ECM, it was way too easy for my tech to say, “I bet it needs a new high-pressure pump.” If I were a betting man, he would have lost. It seems that nine times out of 10, it does need a high-pressure pump, but there are other problems that will set that code.
Tips For Spark Plug Removal
Before attempting to remove the spark plugs on a vehicle, first determine any special instructions by the vehicle’s manufacturer for accessing the spark plugs because engines can vary widely by make and model.
Under the Hood: Spark Plug and Ignition Wire Replacement
Minimizing Engine Misfires — Misfires are a huge no-no in vehicles that have to meet today’s low emissions requirements
Special Report: A Case of Bad Gas
Bad gas comes in many different varieties. There’s the kind you get when you gulp down a double bean burrito. But not so funny is the kind that comes out of a pump nozzle in filling stations across the country. According to some sources, there’s more bad gas out there than the industry is willing
Better Get Your Head Examined – Addressing OHC Service and Repairs
Engine Series Better Get Your Head ExaminedAddressing OHC Service and Repairs Adapted from Larry Carley’s article in Underhood Service Hot Head The heads are the hottest part of an engine, so if the engine overheats the heads will swell and distort far more than the block. Aluminum is not as rigid as cast iron, nor
Northstar V8: Servicing GM’s Top-of-the-Line Engine, Larry Carley
Adapted from Larry Carley’s feature in Underhood Service