...Components of a typical DPF systems with Selective Catalytic Reduction (SCR) After Treatment Devices: Systems for the removal of pollutants from exhaust gases once they have left the combustion chamber, such as Diesel Particulate Filters (DPF's) and Catalytic Converters. CO2 - Carbon...
...Volkswagen Golf - Antiroll bar knock Removing the drop link, allows more movement and easier fitting of the new D bushes The source of a very loud knocking noise can often be a surprisingly small bush. The humble D bushes on the antiroll bar often fail, allowing a tiny contact point betw...
...Choosing an Oscilloscope Have you ever looked at an oscilloscope and been bewildered by the different specifications? Sampling, Bandwidth, Differential or Single Ended, Resolution, Input Voltage, and the list goes on. Ryan's Automotive's Seamus Ryan explains some of the basic terminology...
...INA Belt Academy VW Scirocco 2.0TDi This month, REPXPERT's Alistair Mason replaced the timing belt and water pump on a 2011 Volkswagen Scirocco. The car was fitted with a 2.0 TDi common rail engine (engine code CFHC), had covered slightly more than 70,000 miles and was replaced due to adv...
...Clutch component failure diagnosis part 3 Despite the complex nature of the modern clutch system, many technicians remain under the misapprehension that clutch replacement is a simple and straightforward affair. However, with clutch replacement now often taking several hours, it's impera...
...A recent call to the Helpline involved a Ford Mondeo misfire. The 2007 Mondeo 1.8 TDCi had a misfire on cylinder 1, with a code present for Injector circuit failure. On investigation, the injector circuit was shorted within the injector. A new injector was sourced from a local supplier and...
...THROTTLE VALVES AND REGULATING THROTTLESWHAT IS THE DIFFERENCE?In a petrol engine, the throttle valve impacts the quantity of air that is drawn in. More or less fresh air or air-fuel mixture flows into the cylinder according to how open the valve is. The position of the throttle valve dire...
...VOLVO S60 - Lumpy tick-over and into Limp Mode The throttle body sits below the manifold and can only be accessed once the manifold is off The owner of this 2001 Volvo S60 2.0l had been experiencing a problem with a lumpy tick-over for some time now, but things were getting worse. Then t...
...LuK Clutch Academy Volvo V50 This month, REPXPERT's Alistair Mason replaced the clutch on a 2010 Volvo V50, fitted with a 1.6TDi. The car had covered slightly less than 160,000 miles and reportedly suffered from the clutch 'slipping'. This engine is common between Volvo, Ford, Mini, Mazda...
...AC Servicing - system flushing To perform properly, the AC system must be clinically clean inside the loop. Refrigerant and lubricant working in high temperatures and pressures, as well as components with precise mechanisms (compressor, expansion devices), require cleanliness for optima...