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 Posted: Tue Jun 04, 2013 1:20 pm |
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Joined: Jun 04, 2013
Posts: 2
Trade Rating: 0
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Hello,
Firstly - just want to explain that I'm a mechanical and electrical engineer (15 years experience) with a keen interest in motor mechanics. I have worked on my car for ten years with jobs ranging from simple servicing to head gasket changes. I'm explaining this to avoid 'weak' suggestions that I have already thought of or read about in other forums.
Secondly - I am aware of the other posts in relation to my problem and they have not resolved my issue. I have read them all on this site and others.
I have a 2000 Peugeot 206 1.4 LX. A quick snapshot of my issue:
Sloshing sound of water emanating from around the glove box area. Sound appears when accelerating and decelerating. (Water sounds as if travelling from front to back and back to front accordingly.)
Sound is not apparent when at a steady speed.
Sound is not related to engine speed and definitely not present when stationary no matter the rev count.)
Sound does not necessary emanate when cornering.
Volume of sound lessens over length of a journey.
I have:
Endoscope-d my passenger side sill - nothing found.
Checked the passenger door by swinging quickly from open to close with nothing found.
Checked the footwell of passenger side - completely bone dry.
Bled the coolant system - nil air escaped.
Checked the integrity of the system - no external leaks observed whilst engine has been running or after the car has been at rest for considerable amount of time.
Have topped my coolant up twice (2 litres each time) in a week. But - the 1st time was a check after many months and I'm not convinced that the addition of four litres is directly related to the sloshing issue (poor maintenance on my part!).
Observed no indication that the head gasket has failed. (No emulsified oil in the expansion tank and the exhaust is normal.)
Observed no indication that any cylinder liner has failed - oil was drained out today as part of a routine service. This was normal.
Checked route from engine bay to wheel arch for indication of blockage of rain water drainage - nothing found.
No indication of above normal operating temperature as indicated by the dash board.
No ECU warnings present.
Currently I'm now taking the precaution of carrying spare water with me. I'm now observing my coolant level on a daily basis - and will add to this post if there is a drop within the next couple of days.
I've read about the heater matrix scenario, but I do not have a damp/wet footwell and the amount of water I can hear is fairly substantial.
Just to reiterate - no external leaks found and I am extremely confident that I am not losing coolant within the engine.
I would be grateful for suggestions on where to look!
Many Thanks in advance!
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Posted: Tue Jun 04, 2013 2:25 pm |
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Joined: Feb 10, 2010
Posts: 4266
Trade Rating: +4
Location: Palestine
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your car is 13 years old,so I'm sure that the heater matrix is full of dirt and maybe rust,which make the water cycle weak inside the heater matrix,and not smooth,which makes you hear that sound,even if the heater matrix still hold water well,and there is no water in the floor,i would suggest you clean it,give it a good flush,or replace it.
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Posted: Tue Jun 04, 2013 3:50 pm |
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Joined: Aug 01, 2011
Posts: 390
Trade Rating: 0
Location: Bath UK
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Sloshing sound of water emanating from around the glove box area. Sound appears when accelerating and decelerating. (Water sounds as if travelling from front to back and back to front accordingly.)
Can't see that you've tried the scuttle area under the wipers, that's a favorite place if the drains there are blocked with leaves. If it sounds like it's coming from behind the glovebox then that's more than likely where it is.
TIP
for obscure noises get someone with good hearing in the passenger seat, then both you and they point to where you think the noise is coming from. It's very accurate in pinpointing the source and saves much time
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Posted: Wed Jun 05, 2013 6:45 am |
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Joined: Feb 20, 2013
Posts: 28
Trade Rating: 0
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That's quite simply air in your coolant system. This sound is usually heard when the coolant has just been replaced after a Cambelt change or routine maintenance e.t.c. If it persists after that scenario it simply means the garage didn't let it circulate for long enough, then top up and let air escape before handing it back to the owner.
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Posted: Mon Jul 15, 2013 7:16 am |
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Joined: Jun 04, 2013
Posts: 2
Trade Rating: 0
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Apologies for not getting back sooner than this. I solved my problem, but I'm in the forces and have been away! Lloydpug - you are right. I added 5 litres over two days! Checked the level several times since and it hasn't dropped. I should check more often! Oops! Terrible standards considering I'm an engineer lol.
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