Leaking Coolant

[coolfgxr6t]

hey guys. Got my car serviced couple weeks ago for first time since I got it.

They said the coolant level was low but they pressure tested it and found nothing wrong. About a day after I got it back I was driving it pretty hard and when I got home coolant was coming out of the under side of the plastic coolant tank. enough to clearly see it dripping off and making puddle on ground. The next day the coolant Level was pretty much spot on so I thought it was just that the mechanic filled it up too much and it was releasing some and it didn't leak again till couple days ago it did it again. Now it has stopped leaking again.

Where could it be coming from and what could cause this. Does the plastic water tank have some sort of pressure release valve or something? seems to be leaking from under the tank you top up with coolant.

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[spinr33]

Hi mate,

What you may find and I've had on afew cars , different makes and models what happens is things have hairline cracks in the overflow or radiator.

What happens is when the car heats up and under pressure the cracks open up and you get small leaks from the cracks when it cools down the cracks close up and will pressure test fine.

So if you see a small coolant leak somewhere just after you have driven it and it still hot it's probably needs replacing where you see the leak.

Sometimes these cracks are hard to find.

Good luck

My 2 cents

[angrydeath911]

It sounds like it was over filled. On falcons the over flow goes through the middle of the tank

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[Bonjaz]

When I picked my fg up off a dealer it had a faulty overflow cap, I could blow through it. It's supposed to release pressure at around 100kpa it should be written on the yellow cap.

[Bonjaz]

Seemed fine while driving, once hot turn the engine off and sit there and watch it pressurize and drip from the overflow. Well that's what mine did

[angrydeath911]

120 kpa

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[ranuip]

My FG XR6 just did this. Not driving it hard at all, parked and turned the engine off and it started spewing coolant....... Looks like it came the ought the top cap!? What's up with that!!!??? Just when u get on top of things something else always comes up!!

[Bonjaz]

Read what I said above, can you blow through the cap? If so it's faaaaarked.

[ranuip]

So the caps farkd....? Or the engine??

Getting a replacement tank and cap on the weekend. Hopefully that's all it is and not something worse

[coolfgxr6t]

so looks like my caps farked. where is a good place to buy a new one. what they worth? cars only couple years old will ford give me one under warranty

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