Good afternoon peeps,,

long time away but if possible could I ask a question regarding pressure in coolant system???

mine seems awfully firm to press hahaha

the coolant level is always near the top of the tank but I can’t squeeze the pipes they really firm,, if I leave over night and try they still firm and when I remove the cap all the coolant spits out,,

I’ve replaced cap with a new one,, she doesn’t over heat can go up to 100 but she’ll drop down when driving I get the occasional temp light on but when I check it’s full,, any ideas why it’s like this could thermostat be fooked,,, it also warms up pretty quick and get to 60 degrees in about a mile or so 

thanks peeps. 

2 hours ago, Hardy1812 said:

coolant level is always near the top of the tank

Do you mean the middle? Max mark is generally near the seam on the spherical tanks.

Photo of cold level?

 

7 hours ago, Hardy1812 said:

when I remove the cap all the coolant spits out

 

Assuming the coolant level is normal when cold (see post immediately above) then excess coolant coming out when you release the cap (again when cold) can indicate that the coolant system is being pressurised by gasses from a failing head gasket. Another sign of this is if the cold coolant level shows coolant has been lost.

Gasses in the coolant can also give rise to variations in dash temperature readings.

 

Do not overfill the coolant bottle above the central seam or the expansion bottle can not do its job.

this is the coolant level now it’s actually lower than usual ??? It normally sit around the neck since noticing this issue but does sometimes go back to normal level ,, I never top up the coolant it loses nothing only if I open and it spits out do put a tad bit in 🤣,, this is or seems like it’s very intermittent?? As the past 3 days it’s been super high and today it’s back to been normal still had some pressure in system but not what I’d call excessive?? 
going try and book it in on Saturday for a sniff test for head gasket and get the thermostat and coolant changed plus a flush out of engine and radiator to see if there is a blockage?? 
obviously if sniff test comes back positive then I don’t know what to do,, 😢 either buy a new car or spend god knows how much doing head gasket belt and water pump ££££££££ 🤣

only noticed it 2 week ago as we went for a day out and I thought just check oil and coolant level this opening cap it spat some out 🤣🤣 and I thought ehh that’s not right 

12 hours ago, Breezy_Pete said:

Do you mean the middle? Max mark is generally near the seam on the spherical tanks.

Photo of cold level?

 

Photo shown in me new message 

7 hours ago, pikpilot said:

 

Assuming the coolant level is normal when cold (see post immediately above) then excess coolant coming out when you release the cap (again when cold) can indicate that the coolant system is being pressurised by gasses from a failing head gasket. Another sign of this is if the cold coolant level shows coolant has been lost.

Gasses in the coolant can also give rise to variations in dash temperature readings.

 

Do not overfill the coolant bottle above the central seam or the expansion bottle can not do its job.

Photo and new message captain