Adding Coolant

[ashleyG]

I'm trying to add coolant to my car but under the cap to the reservoir is another cap that I can't get off. It's almost like a plug. I can twist it with pliers but it won't come out and I keep breaking pieces off. Anyone know what this is and how I can get it off to add coolants?

[Crystalion]

Try it when th car is warm and pour some hot water over it to get the cap warm. It creates a vacuum when its cold after running. pressure when its warm will help you. then try again . I busted mine but managed to get the pieces together.

[xeroinfinity]

Welcome to AF ashleyG !!

That would be the inside of your cap that has broken.

Like Crystalion said try warming it up.

A screw driver might help pry it up after its warmed a little.

[73stingray]

Mine broke the same way, made it a real pain to open up. You can get a new one at NAPA pretty cheap.