Ford Repair Questions? Ask a Mechanic for Answers ASAP
Thank you for your question, my name is ***** ***** I am a fully qualified vehicle technician with over thirty years in the trade hopefully I can help.
When the car looses power does this suddenly happen or is it a more gradual feel.
Also is the power loss consistent until started up again, and once started back to normal.
Thank you for that, from the description you have given this sounds like an overboost sensor, this occurs when the pressure in the system builds up too high and the sensor detects this and cut the power, the engine management light would normally also come on but a code will still be left in the ECU.
The codes should be read by plugging in a scanner to the EOBD socket and this should confirm the problem.
The reason the overboost occurs is normally because the turbo bypass system is not operating correctly, this can be anything from simply being sticky, to a failed component, this allows the pressure to build too high.
Once the code is retrieved this should give more information on the matter.
I hope this answers the question but do please ask any further details by replying to this thread.
The test should cost less than half an hours labour, most independant garages will connect up the scanner and read the codes for around £20.
It will depend on the actual source of the problem. The code I would expect to see is P02CA Turbocharger (TC)/supercharger (SC) B - overboost condition.
This can be due to either the wastegate actuator or the solenoid, either of these would be in the region of £150 to fix.
I hope all goes well but do get back in touch by replying to this thread if needed.
All the best
No damaged should occur as the computer does limit the power when the overboost occurs, it may be an idea to stay below the 65 mph mark to help save the condition occuring though.
Yes it could still be the same problem, although under those conditions it may also be a vacuum control on on the throttle, but as it has gone into the reduced power mode a code should have been left in the ECU.
Hi, yes good thank you.
I am presuming they tested the system reading off the live data as well as just looking for codes. Intermittent problems can be hard to find, but when the fault occurs with you on all journeys this should be detectable.
Have you asked if they could accompany you on a drive so that you can demonstrate the problem. I have often found that a different driving style can bring up the problem. This is not because there is a right or a wrong way to drive but simply because the engine can act differently according to the driving style.
This would at least prove you are not crazy :)
Your welcome, Yes that the problem if your not present on the road test they may not meet the conditions needed to create the problem.