need help diagnosing
- Thread starter octanefien
- Start date
RAU03MACH
Legend
cap is not holding PSI
ditch it get a new one
ditch it get a new one
RAU03MACH
Legend
make sure its not oil i d also look at the thermostat
check oil for coolant and check spark plugs for coolant
may need to run a compression test on the heads
rust coming out of cap you may need to flush the cooling system
check oil for coolant and check spark plugs for coolant
may need to run a compression test on the heads
rust coming out of cap you may need to flush the cooling system
07GtS197
Well-Known Member
Pretty much what John said, it looks like rust. If you’re concerned, grab one of those testers to check for combustion gasses in the coolant.
I_LIKE_TURTLEZ
New Member
If the headgasket were that far gone causing it to get hot enough to puke out, you would know it on the temp gauge, thing would be basically pegged and you'd most likely have a dead misfire.
Either the cap is faulty, your oil cooler gasket failed or someone has been mixing coolant types while not ever changing the coolant out.. you should be doing it every 3-5 years regardless of mileage driven.
Really blows my gasket that people will drop $900 every year on a cellphone but you ask them to spend $300/year on oils and fluids and they lose their minds.
Replace the cap with an OEM & flush the system out with a cleaner + distilled water.
Refill with proper coolant.
Spend half a day trying to burp the air out.
Profit.
Either the cap is faulty, your oil cooler gasket failed or someone has been mixing coolant types while not ever changing the coolant out.. you should be doing it every 3-5 years regardless of mileage driven.
Really blows my gasket that people will drop $900 every year on a cellphone but you ask them to spend $300/year on oils and fluids and they lose their minds.
Replace the cap with an OEM & flush the system out with a cleaner + distilled water.
Refill with proper coolant.
Spend half a day trying to burp the air out.
Profit.
LMAO! That is so true!
