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 Posted: Thu Feb 10, 2011 3:50 pm |
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Joined: Apr 19, 2010
Posts: 150
Trade Rating: +2
Location: telford
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its recently had a new cambelt water pump and a heater control valve, after fitting the hcv today the heaters were blowing hot air
but half a mile down the road the temp gauge went into the red, when opening the expansion tank the temp gauge drops back down to half way this happens over and over again
if i leave the car running with the cap off the expansion tank my heaters dont blow hot air and my temp gauge dosnt move
help me please
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Posted: Thu Feb 10, 2011 3:58 pm |
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Joined: Feb 10, 2011
Posts: 84
Trade Rating: +1
Location: Bolton
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air lock? leave the the cap off and let it idle for abit give it some revs. i might be wrong but give it a try
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Posted: Thu Feb 10, 2011 4:01 pm |
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Joined: Apr 19, 2010
Posts: 150
Trade Rating: +2
Location: telford
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yea i tried that as soon as i put the cap back on and give it revs temp gauge goes up again
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Posted: Thu Feb 10, 2011 4:03 pm |
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Joined: Feb 10, 2011
Posts: 84
Trade Rating: +1
Location: Bolton
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give it revs with the cap off mate . could be blocked
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Posted: Thu Feb 10, 2011 4:49 pm |
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Joined: Feb 08, 2010
Posts: 2194
Trade Rating: +2
Location: Bristol & Leicester
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If the system has been completely drained and new coolant added, it needs bleeding properly. Running with the cap off only really works when your topping up the coolant.
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Posted: Thu Feb 10, 2011 5:18 pm |
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Joined: Nov 16, 2010
Posts: 264
Trade Rating: +3
Location: redditch
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yeah it will be air locked if you dont know how to fix it a garage should be cheap enough as its a small job. fingers crossed it didnt get to hot an damage the headgasket!
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Posted: Fri Feb 11, 2011 12:47 am |
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Joined: Feb 10, 2011
Posts: 84
Trade Rating: +1
Location: Bolton
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| Quarmbo wrote: |
| If the system has been completely drained and new coolant added, it needs bleeding properly. Running with the cap off only really works when your topping up the coolant. |
i might be wrong but that's what i did with the 2.5 v6 ford i had, i was told to do it as it could be blocked. just be prepared for coolant to poor out the expansion bottle.all i did was wrap some towels around it so it would soak all the coolant up that spilled out.
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Posted: Fri Feb 11, 2011 4:55 am |
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Joined: Dec 23, 2010
Posts: 430
Trade Rating: +8
Location: staffordshire
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... just taken a 206 back to the dealer i had it from for doing this.
wasnt interested in what the cause was, i got them to exchange for another car
... been told its running again , but not for resale as theyre running it around with no thermostat in anymore 
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Posted: Fri Feb 11, 2011 5:25 am |
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Joined: Oct 03, 2010
Posts: 417
Trade Rating: +1
Location: Neath, South Wales.
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I wouldn't suggest running it that hot!
There is a fault with the cooling system, most likely just needs bleeding 
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