[Engine] Noisy Engine

[Jody]

Can anyone help? Bought an 01, 1.9 Berlingo a couple of weeks ago and I have noticed something strange happening. If I let the revs get below 2000 rpm's, every so often the engine gets really noisy for 5 to 10 seconds, there is no increase in rpm's and it will not accelarate. as soon as the engine noise returns to normal, acceleration is fine. As long as I keep the rpm's above 2000, this doesn't happen. I have been told before I bought the vehicle, the head was removed for some work to be done.
Any ideas anyone?

[brodfather11]

Is it drawing air into the fuel system? . Does it do it when pulling up a hill or in neutral?. I would check the fuel filter for dirt and fuel lines for leaks , cracks etc. Removing the head means disturbing the fuel lines and filter assy.

:thumbsup:

[Jody]

Is it drawing air into the fuel system? . Does it do it when pulling up a hill or in neutral?. I would check the fuel filter for dirt and fuel lines for leaks , cracks etc. Removing the head means disturbing the fuel lines and filter assy.

:thumbsup:

Thanks for replying. The problem occurs whatever the terrain, but only when under 2000 rpm. It doesn't do it when ticking over though.