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Coolant tank 

 

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 Post subject: Coolant tank
Posted: Wed Apr 08, 2015 8:49 pm 
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Hi

Have a ef fairmont and about every 3 4 weeks the coolant in header tank drops a little and sometimes goes to minimum and have to put about 1l in following might help

1. New radiator and new water pump

2. Header tank has a couple pin head size bulges in top but doesn't looked cracked

3. Where the big hose goes to bottom of tank there's 2 hose clamps and between them there's a very small bit of white powder not a lot

4 did plugs not long ago and they're all like normal there's none that are cleaner than others plus there's no stains below exhaust manifold plus there's no milky oil and still starts very easy sometimes may run alittle rough first thing in morning before switching to gas probably because petrol needs a good run or new injectors or both but might only do tht bit once in while or something

Any answer would be appreciated

Thanks
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 Post subject: Re: Coolant tank
Posted: Wed Apr 08, 2015 9:18 pm 
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Ride: 93 ED sedan

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Before starting the car in the morning, take off the oil cap, and look in the cap...if it has a slight whitish look to it, it may be leaking coolant into the oil.....very slowly.

 

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 Post subject: Re: Coolant tank
Posted: Wed Apr 08, 2015 10:06 pm 
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Any other possibilities driven probably 70kms after topping up and no coolant loss
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 Post subject: Re: Coolant tank
Posted: Wed Apr 08, 2015 10:17 pm 
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car10001 wrote:
Any other possibilities driven probably 70kms after topping up and no coolant loss



check heater tap, bottom of heater [in cabin for 'stain' marks] & all hose connections & maybe a pressure test of cooling system ... this will stress the weakest link tho
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 Post subject: Re: Coolant tank
Posted: Wed Apr 08, 2015 11:16 pm 
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Location: yorke peninsula
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Will a 120kpa cap be better and is it recovery or non recovery you need

It's probably a 135 at moment

Another question will the scuff plates from a au fit a ef same goes with steering column shroud trim
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 Post subject: Re: Coolant tank
Posted: Thu Apr 09, 2015 6:16 pm 
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Have you noticed when you loose the coolant?
Mine did much the same thing, would loose about a cup of coolant a week.
I noticed sometime after parking the car a small coolant puddle could be seen.
I guess when stopped the engine would rise in temp and pressure the system more.
Found it was the header tank.
Had to completely remove the tank to see a couple of tiny cracks where the large hose exits.
That was a few years ago now, new tank fixed the problem.
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 Post subject: Re: Coolant tank
Posted: Thu Apr 09, 2015 8:11 pm 
Getting Side Ways
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car10001 wrote:
Will a 120kpa cap be better and is it recovery or non recovery you need

It's probably a 135 at moment

Another question will the scuff plates from a au fit a ef same goes with steering column shroud trim


120 kpa is spec....IIRC, 135 kpa are Holden V6 ones....non-recovery.

 

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 Post subject: Re: Coolant tank
Posted: Fri Apr 10, 2015 11:26 pm 
Stock as a Rock
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is it recovery or non recovery cap you need for a 120kpa
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 Post subject: Re: Coolant tank
Posted: Fri Apr 10, 2015 11:30 pm 
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car10001 wrote:
is it recovery or non recovery cap you need for a 120kpa


Non recovery, because the tank is a pressure vessel and has no catch tank.

 

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 Post subject: Re: Coolant tank
Posted: Sat Apr 11, 2015 12:37 am 
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theres no white in oil cap and oils clean and when plugs were done they were normal one wasnt cleaner than others plus no white stains below head on either side so head gasket should be ok?? starts easy enough and runs well and only has moisture when its cold in mornings
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 Post subject: Re: Coolant tank
Posted: Sun Apr 12, 2015 3:08 pm 
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Ride: 93 ED sedan

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Location: Rockhampton
QLD, Australia

A couple of years ago, my ED was losing coolant at a very, very slow rate.
It took me a little while to find it....the by-pass pipe was leaking, so I replaced it....I was lucky that I had a new genuine one, I bought it about 10 or so years ago.
While I was at it, I decided to replace the heater tap too....just as well....it wasn't leaking either.

 

 

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