http://i120.photobucket.com/albums/o187 ... 22_004.mp4
As you turn the key the hp pump pressurises the fuel. At the same time this noise sounds drowning out the pump pressurising. It sounds like someone forcing the air out of the stretched neck of a balloon.
You cant hear it inside the car, which is why I've just noticed it. Should I be worried?
Any idea what this noise is?
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Any idea what this noise is?
Chris
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Re: Any idea what this noise is?
Chris, I've heard this noise on another HDi and over a long period too.. The owner was not concerned and it didn't seem to cause any issues...
It appeared to emanate from the fuel filter and I believe it may eventually have gone away when the filter element was replaced...
I'd say nothing to be overly concerned about - more an annoyance than anything else...
It appeared to emanate from the fuel filter and I believe it may eventually have gone away when the filter element was replaced...
I'd say nothing to be overly concerned about - more an annoyance than anything else...
Jim
Runner, cyclist, time triallist, duathlete, Citroen AX fan and the CCC Citroenian 'From A to Z' Columnist...
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Re: Any idea what this noise is?
Great! Thanks Jim. I should've mentioned that there is a smell of diesel at the end of the journey, but can't find a leak anywhere. I'll try a new filter.
Chris
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Re: Any idea what this noise is?
Can't actually hear anything from your video but nevertheless I would concur with Jim. The noise that I suspect you have was quite common on early Hdi's and does emanate from the filter, why I don't know, and why its stopped I don't know either unless its due to the filter element as Jim suggests, but nothing to worry about.
Peter
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Re: Any idea what this noise is?
Chris, one thing... If you can smell diesel then check the 'U' shaped pipe that runs from the end of the HP pump to the fuel rail.. The one on the HDi I referred to cracked and leaked on a union but the crack was so tiny and insubstantial that the leak was barely a leak if you know what I mean... More of a smell...
It was only when the leak got just a little worse and some dampness could be observed that it became clear where the leak was...
The memory is a bit dim now but that may have had some bearing on the disappearance of the noise... It was your reference to the smell of diesel that got a little more of the old memory in action!
It was only when the leak got just a little worse and some dampness could be observed that it became clear where the leak was...
The memory is a bit dim now but that may have had some bearing on the disappearance of the noise... It was your reference to the smell of diesel that got a little more of the old memory in action!
Jim
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Re: Any idea what this noise is?
There's a bi-metallic strip in the bottom of the filter, which controls whether or not the fuel is routed via the heater block. This can vibrate and make a right old racket - my Xantia was really bad till I replaced the filter (complete unit) as it was leaking.
Richard W
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'98 Xantia 1.9TD SX Estate 150K Sold "T" - x 47
Re: Any idea what this noise is?
I just had a look, took the filter housing off its bracket and there was some wetness underneath and on the front of the engine, didn't see that before, I've wiped it off and will have a look when I'm back from Shetland.
The noise seems a little quieter. Thanks everyone.
The noise seems a little quieter. Thanks everyone.
Chris
Tesla Model 3 LR DM AWD Blue White
'00 Xant 110HdiSX Est 83K "W"
'99 Xant 110HdiSX Est 320K "V"
'98 Xant 1.9TDSX Est 150K "T"
'97 Xant 1.9TD 20k Est
'94 Fiat TipoTd 40K
'85 BMW K100RT 330K Garaged 26yrs '80 Honda CB250 twin Superdream
Tesla Model 3 LR DM AWD Blue White
'00 Xant 110HdiSX Est 83K "W"
'99 Xant 110HdiSX Est 320K "V"
'98 Xant 1.9TDSX Est 150K "T"
'97 Xant 1.9TD 20k Est
'94 Fiat TipoTd 40K
'85 BMW K100RT 330K Garaged 26yrs '80 Honda CB250 twin Superdream