Radiator leak

chevrolet
tahoe

#1

i can’t find way to stop leak from radiator. I bought after market radiator and when my 1997 tahoe warms up it starts leaking from the cap. I tried replacing cap wih new one but it still keeps leaking from there like if its not sealing right. Any sugggestions?


#2

How many miles on that 1997?

You are not going to like this, but I am suspecting an internal engine problem. Have someone use a sniffer to see if exhaust gases are getting into the cooling system.


#3

It sounds like you just replaced the radiator? Check the filler neck on the radiator, maybe there is a lump of something that should not be there.


#4

How much pressure is on the cap?


#5

sounds like cooling system being overpressurized. Take Josephs advice and have it tested for blown head gasket.


#6

i have 167000 miles on the tahoe and it does not overheat. if i drive it down to the store when i get back it starts leaking from cap, but like i said it is not even close to the half way mark on the temperature gauge