Radiator Pressure

[jeffishot]

mga bro, napansin ko lang na every time that i inspect my car every morning, i noticed that back up reservoir for the radiator is always half empty. this forces me to re fill it every morning before i drive out. i am sure wala naman leak yung radiator or problem yung cylinder head ko.

the only peculiar thing that i noticed is that the cap for the back up reservoir is popped out everytime i inpsect my engine as if meron pressure. may duda akong dito tumatapon ang tubig. can anyone help me on this?

[BlueBimmer]

replace your radiator cap

[jeffishot]

bro, i already replaced my radiator cap a couple of days ago. but my problem is not the radiator cap but the back up reservoir or the back up tank attached beside the radiator. the bank up tank's cap keeps on popping up

[boybi]

what is your ride?

does your reservoir tank have an overflow vent or hose? some cars have their overflow vent on the cap itself. maybe you replaced it with a closed cap, kaya nawala yung vent. that's why your cap is always popped out because of the pressure coming from the radiator.

[BlueBimmer]

^yep that could be the problem

[finchy18]

buy only prefered radiator cap with same cap pressure.
check your aux fan too when aircon is on or off.
whats your ride?

[jeffishot]

my ride is a 95 corrola. i will inpect my vents and hoses again. .09 yung cap ko dati. i didnt replace the reservoir cap, although it does have an overflow vent attached to it

[boybi]

maybe the overflow vent is blocked?

[jeffishot]

i will check it

[jeffishot]

aux fan is fine as well. i have two to be exact

[finchy18]

di kaya mag overflow at lumalabas yung water sa reservior after every ride? try this, dont full up the reservior just half then after you driving a trip check the reservior if it would overflow (be careful the water is very hot) if it do overflow you need to drain it and use a radiator flush. kung ganun parin bka may leak sa baba kaya di mo nakita.

[jeffishot]

k will check it out. thank u pare

[finchy18]

ok lng bro

[lakay]

mga bro, napansin ko lang na every time that i inspect my car every morning, i noticed that back up reservoir for the radiator is always half empty. this forces me to re fill it every morning before i drive out. i am sure wala naman leak yung radiator or problem yung cylinder head ko.

the only peculiar thing that i noticed is that the cap for the back up reservoir is popped out everytime i inpsect my engine as if meron pressure. may duda akong dito tumatapon ang tubig. can anyone help me on this?

Radiator Cap is set to lift at around 15 PSIG. If the pressure is greater, the cap will release some of the pressure to your reservoir, thats why never overfill your reservoir, leave it half empty for radiator coolant expansion. Anyway, this is a good site to check: http://auto.howstuffworks.com/cooling-system7.htm