6. Turbocharger Damage. With a blockage in the exhaust system, you must also consider the health of the turbocharger. When the gas flow is hindered or slowed down, the temperatures can quickly rise. When the problem isn’t resolved promptly, the turbine housing also gets hotter. Left unchecked, the turbocharger becomes damaged.
Had the EGR out today and it was indeed caked with carbon. Blasted it with brake cleaner and gave it a proper scrub, and there has been a noticeable improvement. Much less smoke and soot on a limiter bounce. However, while the valve was out of the way I noticed a 6" split in the hose between the intercooler and EGR, which is definitely where my
\n\n\n mondeo tdci turbo failure symptoms
Symptoms. The symptoms displayed for a P0234 code will depend on the cause of the overboost condition: The service engine soon or check engine light will illuminate. You will experience a loss of power. The engine may show signs of overheating. The transmission may show signs of overheating and harsh shifting.

The diagrams I have are not great for Mondeo. The box you're calling the PCM is the Auxiliary fusebox or BCM, the PCM is under the bonnet. If you can take some pictures of the fuseboxes, both under the glovebox and the one in the engine compartment it might help me track down a diagram.

Normal boost is 18-22 psi, so although our test was below that, we are confident that 15 psi would have identified a leak. My engine is Euro 4, so has the electronic actuator. The rotary actuator was at the 9 o'clock position (offside looking nearside) with the engine off and rotated to a 12 o'clock position when started.

Over Boost can be caused for many reasons, the most common ones are listed (below) Possible Cause (s) Solution. Air Leak. Fine the leak, and replace/repair pipe/gaskets. Turbo internals may be damaged. Diagnose and Repair / Replace Turbo. Foreign Matter (Impact) may of entered the inlet pipe. Replace the Turbocharger. T3CD. 945 253 933 529 36 208 830 868

mondeo tdci turbo failure symptoms