Question for those who overheated.

[Four eyed stangs]

Did overheating loosen your radiator cap?
I overheated today and when I opened the cap to replace fluid, it was VERY loose.

Could I be so lucky as to just have had a loose cap?

Fan comes on just fine and have never seen any evidence of a leak.

 

[jjcool00]

The system is pressurized, so a loose cap could definitely be the root cause. Has there been any issue since you've tightened it?

 

[Four eyed stangs]

Yeah.
It's gone full meltdown the last two days.

It holds temp perfectly for 20 miles and then goes up in steam.

It's been around 110° outside each time.

I'm picking up a degas bottle next.

 

[Four eyed stangs]

Last night we heard a sound from the coolant cap.
This morning we bought a new cap.
The check engine light went out, so it must not have gone critical yesterday.

I'll find out tomorrow if the cap fixed it.

 

[manoli]

Did overheating loosen your radiator cap?
I overheated today and when I opened the cap to replace fluid, it was VERY loose.

Could I be so lucky as to just have had a loose cap?

Fan comes on just fine and have never seen any evidence of a leak.

This happend to me before really freaked me out and shortly after that the overheating started....long story short change the degas bottle and make sure you bleed the system correctly

 

[Four eyed stangs]

Day 5 with a new $5 cap and still no issues.
I have been driving like a jerk and using AC to stress test.
The temp climbs to just under halfway on the gauge and doesn't budge no matter how I drive.

It looks like I got off cheap!!..... for now...

 

[Hawk03]

Where did you get the cap?

 

[Four eyed stangs]

O'reilly's