The primary issue with these engines is coking. additional specifically each turbo and EGR coke buildup. the rise in emission standards together with the low sulfur diesel fuels created an ideal storm of poor potency in combustion. The EGR (Exhaust Gas Recirculation) valve typically becomes stuck from this coke buildup. The EGR valve failure will result in a range of alternative emissions connected malfunctions however the foremost common is maybe the EBP (Exhaust Back Pressure) sensor showing a fault. The EGR will be taken out and soaked in carburetor cleaner (as suggested by Ford's own technical service bulletin) and this may generally end in correct functioning. Upon cleaning if the valve doesn't move freely merely replace it.
Another results of engine coke buildup is failure of the turbo charger. This repair will be terribly expensive if the turbo wants replaced. the nice news is approximately eight out of 10 will be repaired. This repair isn't for the DIY mechanic because it needs disassembling a turbocharger by a trained qualified technician. The variable style that gives the perpetually on boost is additionally the elemental flaw when it involves coking problems. The turbo has vanes in it that enable boost to make even before the throttle is depressed and these vanes get gummed up with residue. Additionally the exciter ring typically builds up with rust. The native Ford diesel tech I spoke with cleans many per week. a correct cleaning will run within the neighborhood of $500 whereas replacement is 3 to four times that quantity.
There is no real preventative live to stop this coke buildup. The diesel mechanics I spoke with all steered that driving the vehicle onerous often can blow most of this buildup out. It looks the very best frequency of repairs is seen in vehicles that aren't driven often. Ford had a technical service bulletin to the present result at just once still.
The last and maybe commonest issue with these engines are the fuel injectors. There are 2 contributing factors to the present issue. One is that the fore mentioned next generation of fuels. It looks these fuels don't perpetually offer adequate lubrication to the interior elements of the injectors. in an exceedingly diesel the fuel is additionally a lubricant for these elements. the opposite issue is lack of maintenance. The fuel water separator is meant to be maintained each fifteen thousand miles. When excess water builds up within the fuel it destroys the injectors. Diesel homeowners aren't perpetually alert to the regular maintenance schedule for these vehicles.
Other problems are documented with these vehicles however these 3 are by way the foremost common. the most effective recommendation that one will follow so as to avoid expensive repairs is to perform all often scheduled maintenance.
