Aftermarket February 2023

Transit EcoBlue. Ivor Searle also offers a professional DPF cleaning service which uses water-based Flash Cleaning technology to remove all contamination, including PM10 particles, cerium oxide deposits and oil residues, from the unit. We have also introduced an off-the-shelf DPF programme for a number of high demend Ford Transit applications.“ For more information, visit: www.ivorsearle.co.uk Preventive maintenance Additives can really help with diesel engines according to Lucas Oil Sales and Operations Director Dan Morgan: “For garages looking for an additive that can help achieve the aim of saving their customers money over the long-term, certain additives are not only solutions that can be trusted, but they are also able to add significant revenue streams at the same time. For example, although Lucas Oil’s Diesel Deep Clean is a product with a reputation for cleaning injectors, restoring power and increasing MPG, its prowess as a cleaner of DPFs is often underestimated. When added to the fuel tank, it removes and dissolves harmful exhaust products that could plug the DPF. That makes it a preventive maintenance tool that mechanics can use, while promoting the preventive maintenance benefits to the car owners themselves. Regular use of Diesel Deep Clean increases intervals in DPF regenerations, which reduces the risk of engine damage from forced regens, that can sometimes be required if carbon build-up is left unchecked.” EGR valve replacement Getting into specifics, commenting on EGR valve failure and replacement, Nissens Marketing Manager Jan Zieleskiewicz said: “The EGR valve is an integral part of the vehicle’s 48 AFTERMARKET FEBRUARY 2023 DIESEL www.aftermarketonline.net emission control system. There are a number of common reasons for EGR failure. The most frequent is the valve getting stuck in an open or closed position. This happens because of unusually high levels of carbon deposits and the reason for the contamination must be eliminated and typically it is linked to improper, unclean combustion in the engine, or frequent short-distance journeys. Using dedicated tools and recommended methods, as well as by simple visual inspection, check exhaust lines related to the EGR, the vacuum pump connection and lines, EGR electrical connections, EGR air connection and coolant connections to EGR cooler, if applicable. To determine the cause, perform a OBD diagnostic span to specify the failures related to the valve, but remember that error codes for a specific sensor or malfunction may not reveal the root cause of the problem.” On installation, Jan observed: “After disconnecting the battery and removing the faulty EGR valve, thoroughly clean all gasket surfaces and flanges and check the condition of the supply pipes and cables, then fit the new EGR valve. For some vehicle models it may be necessary to reset the ECU unit in order to clear any stored fault codes relating to the previous EGR failure.” You then need to test the EGR by inspecting engine operation: “Run the engine at idle to warm up to the normal operating temperature of around 90ºC. It should idle smoothly and evenly. Inspect for any leakages of air, exhaust gas or coolant. If any are spotted, they must be fixed immediately. Then perform another OBD inspection for any EGR-related errors, and examine the exhaust gases emission. Finally, take the car out for a drive and check that the engine operates properly.” For more information, visit: https://showroom.nissens.com/egr-valves Above: LIQUI MOLY Pro- Line Diesel System Cleaner in use