If tiny bubbles continuously rise to the surface of the coolant at the radiator filler neck, is that an early sign of head gasket failure?
2007-12-22 06:32:03 · 5 answers · asked by tolstoi1 3 in Cars & Transportation ➔ Maintenance & Repairs
Yes you are correct. Very small bubbles (key words very small) that come to the top of the radiator when the coolant is circulating is a indication that there is air from compression seeping into the engine coolant passages due to a poor head gasket seal.
This problem is more prevalent on engines that use an aluminum cylinder head especially after an overheating problem due to the increased amount of expansion of the aluminum head vs. the cast iron block.
Does the engine give off white smoke or have an any fouled spark plugs? Another indication of a leaking head gasket
(Due to pulling in coolant into a cylinder on the intake stroke from a seeping gasket)
2007-12-22 07:32:31 · answer #1 · answered by Anonymous · 2⤊ 0⤋
"Tiny Bubbles in the_____!" What does it Smell like? if any Smell. Exhaust Smell (Head Gasket) No Smell, Air Trapped somewhere in the System.
2007-12-22 22:33:26 · answer #2 · answered by sidecar0 6 · 0⤊ 0⤋
you should check the pressure on radiator with a pressure gage to be sure , it could be a number of things are you losing coolant? is the water pump leaking from the weep hole? if so air could be coming from here
2007-12-22 14:42:41 · answer #3 · answered by cowrench 2 · 1⤊ 1⤋
No not necessarily. It could be just that you have too much water in the antifreeze and it's boiling. Maybe you have air pockets in the block. If there is a bleeder valve near the gooseneck, get the motor hot and bleeed out the air.
2007-12-22 14:46:35 · answer #4 · answered by Bob H 7 · 1⤊ 3⤋
its only two things ..first maybe a stucked open thermostat or a bad head gasket
2007-12-22 14:51:32 · answer #5 · answered by noelsans 2 · 0⤊ 1⤋