radiator resevoir

burton51m · 01-05-2007, 02:57 AM

It's and early sign of a BHG.

Along with these symptoms:

-Milky oil cap.
-Milky dipstick.
-Coolant loss.
-Steam out of exhaust.
-Watery Oil.

Try checking for these^ symptoms.

IHateHacks · 01-05-2007, 03:21 AM

First I would try pressure testing the cooling system. You can have a shop do it or you can buy a pressure tester (not cheap). Any external leak will be evident with the system under pressure. System should hold 15 psi without dropping more than 1 psi.

If that checks out ok (like it did in my car with a BHG) then you could try doing a block test. Cheaper than a pressure tester about $50. Will tell you if there is exhaust gas in the cooling system meaning you have a blown head gasket, cracked cylinder head, cracked cylinder or cracked block. If the fluid even hints at turning from blue to yellow (like green) thats bad.

You will find out if your head gasket is bad with these tests. My opinion is you just have an external coolant leak, usually these cars like to top off and blow coolant out of the overflow bottle along with random overheating when the head gasket is bad.

Good luck!

mattfurlani · 01-08-2007, 08:41 PM

Quote:

Originally Posted by burton51m

It's and early sign of a BHG.

Along with these symptoms:

-Milky oil cap.
-Milky dipstick.
-Coolant loss.
-Steam out of exhaust.
-Watery Oil.

Try checking for these^ symptoms.

oh come on you can't just jump to those kinda conclusions. i know its a supra but jeeze...

sd88supra · 01-09-2007, 01:16 AM

about having too much pressure in the gas tank... whats up with that? i have experienced coolant loss (for a while now), but its gradual. ill have to put a little more in every 2 or 3 weeks. not a couple days like most people do when they blow their headgaskets. im thinking theres a leak i havent yet been able to find. i dont have any of the other bhg symptoms.

so... what about too much pressure in the gas tank? ever since i replaced my o2 sensor i dont get it as much, but i still do sometimes. ill get another block test just to be on the safe side.

burton51m · 01-09-2007, 04:57 AM

Quote:

Originally Posted by mattfurlani

oh come on you can't just jump to those kinda conclusions. i know its a supra but jeeze...

i said coolant loss is an early sign of a BHG...which it is, isnt it?

and i also told him to check for more symptoms to find out if it was a BHG...

i never told him he had a BHG.

and maybe u shouldnt jump to a conclusion about what i said ether...

and no...pressure in the gas tank is common in a lot of cars.

01-05-2007, 02:57 AM	#1
burton51m Lexus & 550's Join Date: Feb 2006 Location: Canton, OH Posts: 536	It's and early sign of a BHG. Along with these symptoms: -Milky oil cap. -Milky dipstick. -Coolant loss. -Steam out of exhaust. -Watery Oil. Try checking for these^ symptoms. __________________ Last edited by burton51m; 01-05-2007 at 03:01 AM.

01-05-2007, 03:21 AM	#2
IHateHacks 20psi boost Join Date: May 2006 Location: New Haven/Hamden Posts: 793	First I would try pressure testing the cooling system. You can have a shop do it or you can buy a pressure tester (not cheap). Any external leak will be evident with the system under pressure. System should hold 15 psi without dropping more than 1 psi. If that checks out ok (like it did in my car with a BHG) then you could try doing a block test. Cheaper than a pressure tester about $50. Will tell you if there is exhaust gas in the cooling system meaning you have a blown head gasket, cracked cylinder head, cracked cylinder or cracked block. If the fluid even hints at turning from blue to yellow (like green) thats bad. You will find out if your head gasket is bad with these tests. My opinion is you just have an external coolant leak, usually these cars like to top off and blow coolant out of the overflow bottle along with random overheating when the head gasket is bad. Good luck!

01-09-2007, 01:16 AM	#4
sd88supra 3" Exhaust Join Date: Oct 2005 Location: San Diego, Ca Posts: 190	about having too much pressure in the gas tank... whats up with that? i have experienced coolant loss (for a while now), but its gradual. ill have to put a little more in every 2 or 3 weeks. not a couple days like most people do when they blow their headgaskets. im thinking theres a leak i havent yet been able to find. i dont have any of the other bhg symptoms. so... what about too much pressure in the gas tank? ever since i replaced my o2 sensor i dont get it as much, but i still do sometimes. ill get another block test just to be on the safe side.