...on some engines with an oval crankshaft pulley, tooth wear sometimes occurs, often after work on the high-pressure fuel pump. This can happen, for example, when changing the timing belt CT1140 on 2.0 liter engines from Opel, 2.0/2.2 Blue HDi engines from Citroën and Peugeot, 2.0 TDC...
...Proper fuel pump diagnosis Before replacing a fuel pump, you should check all of the wiring and the electrical contacts. Often, the fuel pump is not broken and only the connections are faulty. How are the system pressure and volumetric flow of the fuel pump measured? Where exactly is th...
...Touareg cranks and sort of starts Peter Kennedy A trade customer contacted our garage, in relation to a problem vehicle that they had come to the end of their diagnostic capabilities. The information we were given was that the 2010 Volkswagen Touareg V6, broke down while driving and...
...Tim Stock Autobiz technical helpline Variable oil pump failures A dislodged apex seal had jammed the pump Apex seals in the correct positions A recent call to the Autobiz Technical Helpline confirms that variable oil pump failures are causing problems. Although this call was abou...
...Renault Zoe refusing to charge Tim Stock Autobiz technical helpline Type 2 pin layout After completing their IMI Level 3 EV training, an Autobiz Technical Helpline member workshop, did not see any EV work coming through the workshop for quite some time. Then, a Renault Zoe with a ch...
...Audi A4 Multitronic worn DMF replacement REPXPERT Alistair Mason is looking at something a bit different in this issue, an Audi A4 2.0 TDI that has covered just over 114,000 miles. The A4 is fitted with a CVT Multitronic gearbox. The customer has reported that they can hear a rattling n...
...A Class - Drive belt vibration The owner of this 2005 Mercedes A170 diesel, spent most of Sunday replacing the belt. After the job was finished, they were upset to find the problem had not disappeared. The thudding vibration noise given off by the belt was the same as it had been with t...
...Ford Focus - Lack of response The throttle pedal was a simple plug and play unit The owner of this 2005 Focus 1.8 diesel phoned to say the car wasn’t doing as it was told. I asked her to clarify a little, and she said that when she pushed her foot down on the accelerator, the engi...
...Hyundai i10 - Worn out timing chain A badly worn timing chain There is a slight misconception amongst the general public when it comes to camshaft drive chains and belts. I have known customers to buy a certain make or model over another, due to the fact that one vehicle may have a...
...With so many forces transmitted through a vehicle’s drivetrain, worn or poor-quality components can have a dramatic effect on its occupant’s safety and comfort. A common failure with driveshafts are the rubber boots that protect the constant velocity joints deteriorating and sp...