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Topic: cooling probs (Read 553 times) |
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familyguy
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cooling probs
« on: May 6th, 2009, 8:44am » |
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Hi guys
yesterday the low coolant level light came on, checked and it was low so i topped it up, let the car cool down and turned the ignition on the light was still there,
went to pick the children up from school(2.5 miles) and the light was still on,and the level was low undid the top of the expansion bottle and it appeared to have drawn a vacuum as the water returned to the expansion bottle with a loud hiss, the level was now correct.
Drove home and the same thing, the car is a cossie it has had a new water pump and cooling rad , i checked for leaks and can see non.
last week when it was cold there was water vapour from the exhaust for the first 30secs of driving which i put down to condensation in the exhaust pipe.
I can't see why the car would be drawing a vacuum unless there is a blockage somewhere
the gauge was bouncing about on sunday on a long run to liverpool it would drop to cold but never went above half.
could i have an air lock in the system?
many thanks for any help
gareth
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Ford Falcon f6 typhoon,2.2 westie,mx6 & a cossie
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gozz
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Re: cooling probs
« Reply #1 on: May 6th, 2009, 9:09am » |
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If the rad and pump were recently fitted it could be that whoever fitted them failed to purge the air from the system,this can be tricky and needs patience,steam from the exhaust for a short time after starting(longer in cold weather)is normal.Were the problem a leaking head gasket,I would have expected overpressurising and boiling,but keep your eye on it.
GOZZ.
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familyguy
Junior Member
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Re: cooling probs
« Reply #2 on: May 6th, 2009, 9:14am » |
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thanks gozz
I am used to messing with cars which is why the vacuum threw me.
this was rens car and he fitted a new water pump, cooling rad and heater matrix to the car .
the temp differance between the top of the rad and the bottom is vast the bottom is almost cold the top red hot.
i think it has not been bled, are they self bleeding?or is it a case of run then car top up ect.
thanks
gaz
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Ford Falcon f6 typhoon,2.2 westie,mx6 & a cossie
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familyguy
Junior Member
I'm a YaBB newbie!
Posts: 91
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Re: cooling probs
« Reply #3 on: May 6th, 2009, 1:07pm » |
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hi one and all
just got back from the garage and all is well
we hooked the car up to a flush machine ,flushed the whole system changed the expansion bottle and a couple of the hoses.
all is now well
we found the expansion bottle was very dirty and this lead to a faulty level switch also the system had a number of air locks in it.
the small pipes going in the expansion bottle were blocked and the inlets on the expansion bottle were totally blocked
hope the above can help others , thanks for all the help offered .
gaz
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Ford Falcon f6 typhoon,2.2 westie,mx6 & a cossie
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