whiring noise from engine compartment?

[blingoblongo]

hi all,

i have a 2003/4 berlingo 2.0 hdi and a while ago i noticed a whirring noise that occurs after engine is switched off, sounds like a small electric motor or pump and it lasts a few mins before fading.

it continues even if battery disconnected.

i noticed it again today after it wouldn't start after i changed fuel filter.

my berlingo does not have fuel pump in tank as it has the pressure bulb near filter.

any ideas what it is?

thanks.

steve g.

[minisandfords]

Not sure if you will find answer here- think yours is an M59 not M49, and 2.0hdi wasn't fitted to M49 (correct me if wrong...)

Alternatively it's not the cooling fan is it?

[geoff]

it continues even if battery disconnected.

   Most strange           radiator venting at cap perhaps

[stumpie]

Mine does that, I was told it's cool, it's just the cooling system cooling down.


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[CourierJim]

If it's the electric radiator fan "running on", I'd investigate whether the radiator matrix is blocked with dead insects and other debris, thus making your van run hot. Could be a faulty water temperature switch for the fan as well.

[Trevor]

I had a new 2.0Hdi in 2003 and it had exactly the some sound, I wondered if it was the headlight motors, never did find out what it was but I never had any problems either.

[blingoblongo]

hi all, thanks for repliess, don't think it's rad fan but will check. i see what you mean about cooling but it's a whirring noise!

p.s. oops! sorry, wrong berlingo section!

[Jed Clampit]

Could be the ABS pump ??

[blingoblongo]

is that electric? i didn't even know it had abs!

steve.

[tanto]

My 1.9 M59 does that as well, with engine off I pumped the brake pedal a couple of times and the noise stopped so probably the servo unit.