08-23-2015, 07:03 AM
Join Date: Feb 2012
Location: Barvas, United Kingdom
What I Drive: 2005, Blue, 2.0 TDCI Est Ghia
FF Reputation: 1
Buy-Sell-Trade Rating: (0
Focus 2.0 TDCI (2005) - Intermittent No Boost
Have had an issue just crop up a couple of days ago - the turbo will not boost past 2500rpm most of the time. Occasionally after stopping at a junction it will boost fine in 1st gear. Sometime it will boost for a more prolonged drive and then stop.
I have blanked off the EGR valve - this has no effect - so am discounting the EGR valve as an issue.
I have removed the Boost Pressure Solenoid and connected the vacuum pipes to remove the solenoid from the system - this has no effect either.
I have done a visual check on the vacuum pipes and they appear OK.