#1: Air , hissing noise coming from coolant tank Author: eddrj, Location: BerkshirePosted: Sun May 15, 2011 12:27 pm ---- Just noticed werid air noise coming from coolant expansion tank any ideas , ? anyone else had this ?
Is it air lock or need new cap cause know they have 15psi on them , ive had coolant changed few months back.
Thanks
#2: Re: Air , hiossing noise coming from coolant tank Author: bigtony85, Location: NottinghamPosted: Sun May 15, 2011 12:47 pm ---- is vehicle overheating?? or heater not working??
#3: Re: Air , hiossing noise coming from coolant tank Author: eddrj, Location: BerkshirePosted: Sun May 15, 2011 12:51 pm ---- goes high in traffic dont think fans working, never overheated though no , heater is working yeah.
Just gone out and its still hissing at me lol like a snake coming from coolant tank notice it when been for a drive then get back look under bonnet and hear it . Last edited by eddrj on Sun May 15, 2011 12:58 pm; edited 1 time in total
#4: Re: Air , hiossing noise coming from coolant tank Author: bigtony85, Location: NottinghamPosted: Sun May 15, 2011 12:58 pm ---- sounds like back pressuring aka head gasket probably
#5: Re: Air , hiossing noise coming from coolant tank Author: cartoonhead, Location: North ManchesterPosted: Sun May 15, 2011 1:02 pm ---- have you bled it by the 2 bleed places ?
#6: Re: Air , hiossing noise coming from coolant tank Author: eddrj, Location: BerkshirePosted: Sun May 15, 2011 1:02 pm ---- but the oil and coolant are fine arent sluggey brown colour thought that was main symton of head gasket and no coolant leak .
I have nothing else wrong just werid air noise .
#7: Re: Air , hiossing noise coming from coolant tank Author: perry081064, Location: staffordshirePosted: Sun May 15, 2011 1:02 pm ---- sounds like its got a fair bit of back pressure.
could be the start of a headgasket failure, it may be worth your while having it checked at a garage to see if gasses are present in the cooling system, also check the coolant for oil in the mixture.
#8: Re: Air , hiossing noise coming from coolant tank Author: eddrj, Location: BerkshirePosted: Sun May 15, 2011 1:03 pm ---- Not sure ,my mechanic did it so i duno about the bleed srews
#9: Re: Air , hiossing noise coming from coolant tank Author: bigtony85, Location: NottinghamPosted: Sun May 15, 2011 1:07 pm ---- get the coolant sniff checked. the coolant and oil dont need to b sludgy to mean a blown headgasket.
#10: Re: Air , hiossing noise coming from coolant tank Author: eddrj, Location: BerkshirePosted: Sun May 15, 2011 1:08 pm ---- coolant sniff ?? also thought loss of power is a sign and goes well the same
#11: Re: Air , hiossing noise coming from coolant tank Author: cartoonhead, Location: North ManchesterPosted: Sun May 15, 2011 1:11 pm ---- there's 2 bleed places.
one is at the front and there's another thats on the pipes that go to the heater matrix
( next to brake servo , round black plastic thing with a slot for a screw driver ) Last edited by cartoonhead on Sun May 15, 2011 1:12 pm; edited 1 time in total
#12: Re: Air , hiossing noise coming from coolant tank Author: bigtony85, Location: NottinghamPosted: Sun May 15, 2011 1:11 pm ---- like perry said they test for gasses in the coolant. with a blue fluid in a tube if it turns bright yellow/green there is a head gasket fault dont have to b down on power ether.
#13: Re: Air , hiossing noise coming from coolant tank Author: perry081064, Location: staffordshirePosted: Sun May 15, 2011 1:12 pm ----
eddrj wrote:
coolant sniff ??
garage will put a special mix into a tubey type thing and suck the mixture.
( if it turns dark blue , bend over and pass him the vasaline )
#14: Re: Air , hiossing noise coming from coolant tank Author: perry081064, Location: staffordshirePosted: Sun May 15, 2011 1:13 pm ---- sorry my mistake ... green
#15: Re: Air , hiossing noise coming from coolant tank Author: eddrj, Location: BerkshirePosted: Sun May 15, 2011 1:14 pm ---- ok there are the 2 bleed places,
what do i do and how much do i turn them i havent got a clue lol soz .
Ok il get my mechnic to take a look at it
#16: Re: Air , hiossing noise coming from coolant tank Author: cartoonhead, Location: North ManchesterPosted: Sun May 15, 2011 1:15 pm ---- undo them till water or air starts to come out
#17: Re: Air , hiossing noise coming from coolant tank Author: eddrj, Location: BerkshirePosted: Sun May 15, 2011 1:16 pm ---- so just undo them till water or air comes out thats it both them , which one first lol dont it matter ? when its cold u mean ? Last edited by eddrj on Sun May 15, 2011 1:17 pm; edited 1 time in total
#18: Re: Air , hiossing noise coming from coolant tank Author: bigtony85, Location: NottinghamPosted: Sun May 15, 2011 1:17 pm ---- if there is an air lock it should cause the engine to seriously over heat because one the coolant wont b circulating thro the system and two air heats up more than coolant
#19: Re: Air , hiossing noise coming from coolant tank Author: cartoonhead, Location: North ManchesterPosted: Sun May 15, 2011 1:21 pm ---- no need to drain it.
unscrew 1 till you have constant water coming out then just tighten it up then do the same with the other one
#20: Re: Air , hiossing noise coming from coolant tank Author: eddrj, Location: BerkshirePosted: Sun May 15, 2011 1:21 pm ---- its got to 95 other day in traffic but not in the red top bit or no STOP light
so is really hot though duno what temp is overheating ?
#21: Re: Air , hiossing noise coming from coolant tank Author: cartoonhead, Location: North ManchesterPosted: Sun May 15, 2011 1:24 pm ----
bigtony85 wrote:
if there is an air lock it should cause the engine to seriously over heat because one the coolant wont b circulating thro the system and two air heats up more than coolant
on the HDI there's a problem of the heater matrix getting blocked wich only drops the temp in side the car but there's NO over heating as it still circulates thru the engine
#22: Re: Air , hiossing noise coming from coolant tank Author: bigtony85, Location: NottinghamPosted: Sun May 15, 2011 1:25 pm ---- you can try and bleed it to eliminate it but i suggest you find a local garage to check your coolant for the present of exhaust gasses.
#23: Re: Air , hiossing noise coming from coolant tank Author: eddrj, Location: BerkshirePosted: Sun May 15, 2011 1:26 pm ---- so worth bleeding it or just go to mechanic to do it and see what he thinks it is
#24: Re: Air , hiossing noise coming from coolant tank Author: bigtony85, Location: NottinghamPosted: Sun May 15, 2011 1:30 pm ---- sniff test would b the first thing i did if i had a vehicle come in to my workshop with a hissing header tank cap. just a very quick way to eliminate it being a head gasket fault
#25: Re: Air , hiossing noise coming from coolant tank Author: cartoonhead, Location: North ManchesterPosted: Sun May 15, 2011 1:31 pm ---- try bleeding it to see if it cures and if it does go ask your mechanic why he had not bled it correctly then look for a new mechanic
#26: Re: Air , hiossing noise coming from coolant tank Author: eddrj, Location: BerkshirePosted: Sun May 15, 2011 1:32 pm ---- ok thats what im confused about had coolant changed not long ago thought he wuda done this.
So all i do is turn bleed screw with cap off ? Last edited by eddrj on Sun May 15, 2011 1:33 pm; edited 1 time in total
#27: Re: Air , hiossing noise coming from coolant tank Author: cartoonhead, Location: North ManchesterPosted: Sun May 15, 2011 1:33 pm ---- depends if he knew about the screw at the back for the matrix which is not in plain view
#28: Re: Air , hiossing noise coming from coolant tank Author: bigtony85, Location: NottinghamPosted: Sun May 15, 2011 1:34 pm ---- there called cowboys lol
#29: Re: Air , hiossing noise coming from coolant tank Author: eddrj, Location: BerkshirePosted: Sun May 15, 2011 1:34 pm ---- he used to work at peugeot lol explains it all ay
he must know both of them which one should i bleed?
they all called peugeot mechnics lol {cowboys}
#30: Re: Air , hiossing noise coming from coolant tank Author: bigtony85, Location: NottinghamPosted: Sun May 15, 2011 1:35 pm ---- try both mate
#31: Re: Air , hiossing noise coming from coolant tank Author: eddrj, Location: BerkshirePosted: Sun May 15, 2011 1:36 pm ---- ok with cap on off what ? i aint gotta clue
so just bleed them screws do and nothing else ?? Last edited by eddrj on Sun May 15, 2011 1:37 pm; edited 1 time in total
#32: Re: Air , hiossing noise coming from coolant tank Author: bigtony85, Location: NottinghamPosted: Sun May 15, 2011 1:37 pm ---- i ve always wondered y there's a horse tied up out side my local pug dealer lol
#33: Re: Air , hiossing noise coming from coolant tank Author: eddrj, Location: BerkshirePosted: Sun May 15, 2011 1:39 pm ---- lol they main stealers just there to cause more problems and rip people off
#34: Re: Air , hiossing noise coming from coolant tank Author: eddrj, Location: BerkshirePosted: Sun May 15, 2011 1:41 pm ---- so its that easy just bleed screws anything else gotta do while im doing that or thats it ?
radiator cap off /on ?
#35: Re: Air , hiossing noise coming from coolant tank Author: bigtony85, Location: NottinghamPosted: Sun May 15, 2011 1:41 pm ---- not 100% sure on a pug. but on all the trucks i hav had to coolant bleed leave cap off, engine running and unscrew the bleed screw/screws untill there is no air hissing out of them and just coolant then close them bk up. do it with a stone cold engine tho to avoid scalding yourself
#36: Re: Air , hiossing noise coming from coolant tank Author: cartoonhead, Location: North ManchesterPosted: Sun May 15, 2011 1:44 pm ---- this is the matrix bleed screw
Last edited by cartoonhead on Sat Jul 02, 2011 5:33 am; edited 1 time in total
#37: Re: Air , hiossing noise coming from coolant tank Author: eddrj, Location: BerkshirePosted: Sun May 15, 2011 1:44 pm ---- ok il have a go cheers, so engine running and cap off
#38: Re: Air , hiossing noise coming from coolant tank Author: eddrj, Location: BerkshirePosted: Sun May 15, 2011 1:45 pm ---- ok il, try that one then till air has gone hopefully can i do with engine off or have to be engine running ?
#39: Re: Air , hiossing noise coming from coolant tank Author: cartoonhead, Location: North ManchesterPosted: Sun May 15, 2011 2:00 pm ---- engine running / ticking over .
if nothing come's out leave it open till water appears or if waters there straight away close it and try the next one
#40: Re: Air , hiossing noise coming from coolant tank Author: bigtony85, Location: NottinghamPosted: Sun May 15, 2011 2:06 pm ----
#41: Re: Air , hiossing noise coming from coolant tank Author: eddrj, Location: BerkshirePosted: Sun May 15, 2011 2:13 pm ---- did it noise has gone but bit of coolant water came out do i screw it back up tight again went for a drive not making hissing noise like last time
#42: Re: Air , hiossing noise coming from coolant tank Author: cartoonhead, Location: North ManchesterPosted: Sun May 15, 2011 2:20 pm ---- did you drive with any of the bleed points open
open-check for air then close then check the next one , when both have been checked have a look at the water level in the water bottle , top up if need be , then test drive
#43: Re: Air , hiossing noise coming from coolant tank Author: eddrj, Location: BerkshirePosted: Sun May 15, 2011 2:23 pm ---- no well wasnt real tight bit water came out made sure it shut now properly .
Least not making stupid hissing noise thats done it only thing i find it impossible to check coolant level really do ?
cant seem to find other bleed screw but if noise has gone then should be ok getting dark now anywayz
#44: Re: Air , hiossing noise coming from coolant tank Author: cartoonhead, Location: North ManchesterPosted: Sun May 15, 2011 2:26 pm ---- as tight as you can get them by hand will be ok.
#45: Re: Air , hissing noise coming from coolant tank Author: eddrj, Location: BerkshirePosted: Sun May 15, 2011 2:32 pm ---- holy s**t na is still making flipping noise
wasnt straight after like before il check other one tmoz if i can find it and how do you see through coolant because i find it well hard almost impossible to see the level duno how much coolant i lost probably only tiny bit
#46: Re: Air , hissing noise coming from coolant tank Author: bigtony85, Location: NottinghamPosted: Sun May 15, 2011 2:49 pm ---- shine a torch in to the header tank and u will b able to see the level clearer
#47: Re: Air , hissing noise coming from coolant tank Author: eddrj, Location: BerkshirePosted: Sun May 15, 2011 2:58 pm ---- Cartoonhead the other screw i think is at bottom mid near radiator on and by thermastat its not in exact place as urs is it because mines a 2000 i actaully havent got bleed screw in same place heater matrix yeah but other is different place .Or i only have one bleed screw ? looks like one at end of thermastat mid in middle of radiator not right habd side like in your pic .
I just tries that still cant see level atall and its a bright good torch , this coolant bottles are s**t why they make it so hard meant to be easy checking coolant level . there's gotta be a easy way surely and the joke is if you fill it so you can see it thats a fair bit over max .
Would it hurt it much being bit over the max level ?
And its 50/50 water, coolant rite ?
#48: Re: Air , hissing noise coming from coolant tank Author: bigtony85, Location: NottinghamPosted: Sun May 15, 2011 3:04 pm ---- it should just spew any excess coolant out
yeh most coolants 50/50
#49: Re: Air , hissing noise coming from coolant tank Author: eddrj, Location: BerkshirePosted: Sun May 15, 2011 3:05 pm ---- ok thanks
so should be fine to put bit more in over max ? ,
so i can at least see it better than none in there suppose because its the only way i can see if there's any in there .
#50: Re: Air , hissing noise coming from coolant tank Author: bigtony85, Location: NottinghamPosted: Sun May 15, 2011 3:09 pm ---- yeh wont kill it if there's too much in it it should spew it out of an overflow and get its own level.
#51: Re: Air , hissing noise coming from coolant tank Author: eddrj, Location: BerkshirePosted: Sun May 15, 2011 3:09 pm ---- ok cheers
#52: Re: Air , hissing noise coming from coolant tank Author: eddrj, Location: BerkshirePosted: Mon May 16, 2011 12:54 am ---- Think its sorted i did the other one tiny bit tight it back up,
topped up coolant and think its done the trick seems ok now ,
not making noise after 2 quick trips in my car for a test run .
#53: Re: Air , hissing noise coming from coolant tank Author: mattievrs, Location: LeicesterPosted: Mon May 16, 2011 3:27 am ---- Id buy a new coolant tank lid mate. Sounds like the seal has gone in it. The caps are also self bleeding so you shouldnt have air in the system.
#54: Re: Air , hissing noise coming from coolant tank Author: eddrj, Location: BerkshirePosted: Mon May 16, 2011 5:39 am ---- ok , i ordered one last nite cause there only bout £6 .
Hate the way you just cant see in the damn coolant tank it must be the most stupid thing about the 206 lol .
#55: Re: Air , hissing noise coming from coolant tank Author: Edward, Location: In the garagePosted: Mon May 16, 2011 5:54 am ----
mattievrs wrote:
Id buy a new coolant tank lid mate. Sounds like the seal has gone in it. The caps are also self bleeding so you shouldnt have air in the system.
The system isn't self bleeding, that's why it has bleed screws fitted.
#56: Re: Air , hissing noise coming from coolant tank Author: eddrj, Location: BerkshirePosted: Tue May 17, 2011 1:44 pm ---- also got new coolant lid def needed new one,
because new one feels so much more tight and better can feel the 15 psi if you get what i mean before was just a bit tight .
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