2001 Mazda Demio Repair Question
Coolant system over pressurizing
i am hoping that you may be able to help me out as its really becoming a nuisance now.
oh its a 1.3 16 valve b3 engine i believe
did you have the head checked for warpage and possible cracks??
24,825 answers provided
If the repair was recent, there could still be air trapped in system and this can result in high pressure than normal. When engine is cold, remove radiator cap and check the coolant level in it. Top up if necessary.
Next to check would be the radiator cap. A bad cap would not be able to hold the pressure and allow coolant to be pushed to the reservoir.
If above 2 are found to be good, I am afraid you could still be having a problem with the head gaskets. Pressure is escaping from cylinders into the coolig system and it could also be due to a bad cylinder head or the block surface is not level.
If the upper radiator hose is too soft, you would need to replace it. This can be due to the quality or age/condition of the hose.
Do you still have coolant losses and overheating issues, which yuou have not mentioned?
39,840 answers provided
thanks guys for the replies, ok to AESMASTER, i had the head pressure tested and also tested for level both where good, to KHLow
all hoses are good but if i put my hand on the top hose i can feel the bubbling inside the hose go past my hand, as for the radiator the hose from the coolant bottle attaches to where the radiator cap is placed so the radiator cap needs to allow coolant to bypass it into the system, if i can do it would i be able to take a video of it and put it on youtube and attach the url to a rep
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sorry, put it on youtube and attach the url to a reply so you can see whats happening as its hard to explain without seeing it,
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