Dripping sound when heater is on

[DrJuanKerr]

With the heater on I hear a constant dripping noise coming from “somewhere” at the front of the vehicle.

At first I thought it may have been some sort of expansion “creaking” or “cracking”. Surely that would stop when “the thing” stops expanding!

I turn the heater off. The dripping stops. Restart the heating and it restarts.

I’ve had a rummage around the engine bay, the front wheel arches and even underneath but can’t find anything.

Any ideas? The constant dripping gets on my nerves!

 

[Hotel California]

It's the diesel pump on the aux. heater , perfect normal .
Lots of existing threads on this and Q's how to lower the noise ....take a scroll thru some older posts...

There's a "dripping" sound coming from the fridge (SE/Ocean/Coast) when turned on , also driving some people nuts....

 

[Nick Stubbs]

Constant ticking is possibly the fuel metering pump.

 

[DrJuanKerr]

..... at least it’s not a “fault” per se. I made a search before posting but only 2 results showed up. I’ll do a better search on the pc later.
Thanks

 

[Bellcrew]

..... at least it’s not a “fault” per se. I made a search before posting but only 2 results showed up. I’ll do a better search on the pc later.
Thanks

It is actually reasonably quite in the Cali, the Eberspacher fuel pump on our boat is a lot louder despite my best efforts to silence it.