Hello all,
Ive made posts recently regarding ACE/PAS noise on my 2001 TD5. Thanks to searching other threads ive managed to renew ace filter and today fitted a new ace pump. However........i still have a slight droaning noise at low revs and i get a random and regular thud from under the drivers seat while stationary ( I wish it was coming from the CD multichanger but im pretty sure its the ACE!). Im and engineer and work regularly with hydarulic systems and the thud suggests to me - a sudden change in pressure in the system. My question is, has anyone ever experienced a sticky pressure control valve or a defective pressure transducer that hasnt given an amber light? Ive read previous posts about severe fluctuations in pressure but all dead end threads.
Thank you all in advance.
Ive made posts recently regarding ACE/PAS noise on my 2001 TD5. Thanks to searching other threads ive managed to renew ace filter and today fitted a new ace pump. However........i still have a slight droaning noise at low revs and i get a random and regular thud from under the drivers seat while stationary ( I wish it was coming from the CD multichanger but im pretty sure its the ACE!). Im and engineer and work regularly with hydarulic systems and the thud suggests to me - a sudden change in pressure in the system. My question is, has anyone ever experienced a sticky pressure control valve or a defective pressure transducer that hasnt given an amber light? Ive read previous posts about severe fluctuations in pressure but all dead end threads.
Thank you all in advance.