Tech Tip: BMW’s Power Reduction and Vanos Faults Are Stored In DME  More»

Diagnostic Solutions: Ignition Coil Diagnostics Import Specialist Gary Goms says there are a variety of opinions about how to test ignition coils and ignition systems. The most basic method is measu...  More»

Diesel Engine Glow Plugs: Not Just For Starting Anymore Since diesel engines ignite by using the heat of combustion, they usually need help when the climate changes to the cold of winter.  More»

Tech Tip: Rough Running Pontiac Montana Due to Fuel Pump Problem A customer complaint consisted of an early model Pontiac Montana that was running rough with a Service Engine Soon lamp illuminated. Following an init...  More»

Pulling Codes: Hit or Miss? Part III In the first two articles, we looked at cranking compression and tailpipe analysis. We will now explore in-cylinder analysis. In order to have an unde...  More»

Tech Tip: Piston Ring Selection in Chrome-Plated Cylinders Chrome-plated cylinder liners are being used in increasing amounts both by original equipment manufacturers, and by aftermarket sources.  More»

Tech Feature: Understanding the Differences, Challenges Between Crankshaft Position Sensors There are two basic types of crankshaft position sensors: Magnetic Field (Variable Reluctance) and Hall Effect. The magnetic type uses a magnet to sen...  More»

Tech Tip: Measuring Wall Thickness of Main and Rod Bearings Although the best method to measure clearance between the crankshaft and crankshaft bearings is by using a bore gauge while the bearing is installed i...  More»

Diagnostic Dilemmas: 8 Simple Rules ... Many of the "Diagnostic Dilemmas" Gary Goms is called upon to solve aren't really all that complicated - but were caused by basic oversights and incor...  More»

Tech Tip: Cavitation - A Cooling System's Worst Nightmare One of the main concerns created by cavitation is the erosion of the metal on the outside surface of cylinder liners.  More»

Tech Tip: Dodge/Jeep Engine Misfire at Idle This bulletin applies to vehicles equipped with a 3.7L engine in which the customer may experience occasional engine misfire at idle. The malfunction ...  More»

Tech Tip: Mazda6 Engine Won't Start in Cold Weather In extremely cold weather (approximately -30 degrees C), a customer may experience an engine no start/no crank ­condition due to a frozen main relay a...  More»

Report Card — 'Defender' of the Land According to Land Rover designers, replacing the iconic Defender is one of the biggest challenges in the automotive design world  More»

VW/Audi Maintenance that Drives Profits To say that Volkswagen and Audi Group (sometimes mistakenly referred to as VAG) is a large part of the automotive scene worldwide is a gross understat...  More»

Tech Tip: Coolant Leaks, Head Gasket Issues on Toyota 2.2L Engines Loss of engine coolant has been reported on some Toyota 2.2L 5SFE engines in various amounts. In most cases, there are limited signs of this leakage o...  More»