95 lumina overheating problem

[chris_8222]

i just finished replacing the head gaskets and when i started the car it was fine for a minute then overheated.i have replaced the thermostat and the water pump but still have the problem.i have added coolant more than once it should be full but it always needs more.i dont know where the coolant is going.i see no leaks and its not going into the oil.please help a frustrated and confused guy who dosent know what else to try.

[cf1]

Originally Posted by chris_8222

i just finished replacing the head gaskets and when i started the car it was fine for a minute then overheated.i have replaced the thermostat and the water pump but still have the problem.i have added coolant more than once it should be full but it always needs more.i dont know where the coolant is going.i see no leaks and its not going into the oil.please help a frustrated and confused guy who dosent know what else to try.

did you relace the intake gasket? mine was taking coolant and didnt seem like it was in the oil, but when i took the intake off coolant every where.. also check the heater core..

[jeffcoslacker]

I guess you bled the system properly?

[chris_8222]

yes all gaskets were changed but is it possible there may be an air leak somewhere??

[richtazz]

IF it's overheating very quickly, then you still have air in the cooling system. Bleeding all the air can be a time consuming PITA on these engines.

[chris_8222]

how long can it really take to get out the air??i had a stream of coolant coming from the bleed screws.i thought all the air is out but i will try again.thanks for the idea.at this point i will try anything to get my car going again

[chris_8222]

well i tried bleeding the system until all the air bubbles stopped coming out of the bleeder screws.its still getting hot could there still be air in the system or is this something else?im not losing coolant and am getting heat until the guage gets to about 3/4.now it drops to 1/2 temp then back to3/4 and never going down to normal.what now

[cf1]

Originally Posted by chris_8222

how long can it really take to get out the air??i had a stream of coolant coming from the bleed screws.i thought all the air is out but i will try again.thanks for the idea.at this point i will try anything to get my car going again

theres 2 bleeder plugs one on the thermostate housing the other on the heater pipe,, with the car runing open one at a time untill you get all coolant out,keep repeating..your gauge shouldnt reach 1/2 way mark...

[chris_8222]

ive got coolant coming out of both of them but i will try again tomorrow.is it normal to have to bleed it more than twice?

[cf1]

Originally Posted by chris_8222

ive got coolant coming out of both of them but i will try again tomorrow.is it normal to have to bleed it more than twice?

after 2 times it should be ok.. it could be the head gasket miss algined.. have you ever replaced one before.. it seems the coolant isnt circualating.. squeeze the top radiator hose and see how much pressure you feel..

[chris_8222]

Originally Posted by cf1

after 2 times it should be ok.. it could be the head gasket miss algined.. have you ever replaced one before.. it seems the coolant isnt circualating.. squeeze the top radiator hose and see how much pressure you feel..

yes i have replaced 2 head gaskets on 3.1L engines and never had this problem.when i squeese the upper rad hose there is alot of pressure.if the head gasket was miss aligned would i not see coolant leaking or in my oil?

[chris_8222]

wow now im confused.i had the car at normal temp when sitting in the driveway,when i went out for a drive it overheated within minutes.the resivoir tank was full to the top when i shut it off.any ideas?can i tell if the head gasket is sitting properly without taking the engine apart again?

[cf1]

Originally Posted by chris_8222

wow now im confused.i had the car at normal temp when sitting in the driveway,when i went out for a drive it overheated within minutes.the resivoir tank was full to the top when i shut it off.any ideas?can i tell if the head gasket is sitting properly without taking the engine apart again?

did you put a new intake gasket on? is the car taking coolant?is the thermostate in right? if you put head gaskets on before you should know..if anything its the water pump..or radiator blocked....the head could be blocked,, just keep working with it..

[chris_8222]

Originally Posted by cf1

did you put a new intake gasket on? is the car taking coolant?is the thermostate in right? if you put head gaskets on before you should know..if anything its the water pump..or radiator blocked....the head could be blocked,, just keep working with it..

yes i replaced the intake gasketsand the car is taking coolant.the thermostat is in properly.i put head gaskets on before but i never ran into this problem.im thinking this is not a problem wit air in the system.could the head gasket not be sitting properly?would this cause my problem?anyways i thank you for all your suggestions.if you have any more greatly appreciated if not like i said thank you for your help

[cf1]

Originally Posted by chris_8222

yes i replaced the intake gasketsand the car is taking coolant.the thermostat is in properly.i put head gaskets on before but i never ran into this problem.im thinking this is not a problem wit air in the system.could the head gasket not be sitting properly?would this cause my problem?anyways i thank you for all your suggestions.if you have any more greatly appreciated if not like i said thank you for your help

chris... it is not air in the system.. your coolants going into the engine oil.. the head gasket or intake gasket is miss aligned a water jacket mat be coverd.... if your coolant was boiling out it would be a differnt story.. blocked radiator or etc..