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...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...

...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...

...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...

...Tech Bits with Steve Rothwell from September 2018 Astra - Intermittent cutting out The dirt in the fuel tank which led us to believe that the problem was fuel related was nothing more than a red herring An intermittent problem is bad enough, but when it's a family member's vehicle, it...

...Tech Bits with Steve Rothwell from October 2018 Audi A6 - Inlet Manifold Flap Failure The inlet manifold runner motor is only available with the manifold. This 2009 Audi A6 TDI SE had 97,000 miles on the clock and had illuminated the EML a couple of times. The owner was in possession...

...VW Golf TDi - Pumpe Düse Problems Pump Dose Pumpe Duse Damage was easily apparent on both the camshaft and the hydraulic lifter Driving seemingly without a problem one day, a lack of performance was suddenly felt by the driver of this 2003 VW Golf 1.9 TDi the next day. This was coupled...

...Tech Bits with Tim Stock from November 2018 Renault Trafic R9M 1.6 Bi-Turbo Non-start The scope trace from the cam and crank sensors, after the flywheel was re-installed An alignment hole on a flywheel, at arrow A customer's Renault Trafic was given to the junior tech to change the clu...

...Audi A5 - Suspected DPF problem The small pressure sensor is fitted to the top of the engine and takes no time to fit With the MIL suddenly illuminating, the owner of this 2011 Audi A5 was concerned, even though there were no problems with the drive of the Audi and it would seem no appar...

...Understanding Long Term Fuel Trim - a hidden gem that will save you time and money Long term fuel trim (LTFT) is a powerful PID in the diagnostic data that is often overlooked or ignored by many technicians. Here are 2 recent examples of the power of LTFT data that can make early diagno...



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