Coolant leak...

302GTS · May 6, 2009

In class right now, so I havn't checked it out other than when I saw it this morning. When I parked at school this morning, after about a minute or 2's drive there from my house, I noticed a small puddle of coolant on the ground pretty much right under the overflow tank. Could there be a leak/crack anywhere around there, or could it be something else?

Chythar · May 7, 2009

That's the typical place Mustang radiators leak. It has to do with how the unibody flexes under torque, and that corner of the body gets a lot of twisting force. The only way that I know of to test if there's a leak in your coolant system is to pressure test it. You can buy the tool or you may be able to rent one from your local auto store.

Good luck, I just had my Fluidyne aluminum radiator sprout a good leak in the same area as well.

94GTCoupe · May 7, 2009

i think my Mishimoto replacement is leaking

302GTS · May 7, 2009

Thanks for both of the replies. I'll work on doing the pressure test this weekend possibly, or just consider leaving it be for now. It doesn't lose much at all, and my car's cooling system is doing its job well enough for now, so we'll see. Thanks though.
-Jeff

Zero Signal · May 7, 2009

Just hope it isn't the water pump or timing cover I need to fix the gasket on the pump on my Bronco (same as the stang) for the 4th time in 3 years. Our gasketing system is THE worst.

302GTS · May 8, 2009

Zero Signal said:
Just hope it isn't the water pump or timing cover I need to fix the gasket on the pump on my Bronco (same as the stang) for the 4th time in 3 years. Our gasketing system is THE worst.

Yeah, I checked the weep hole in the water pump and it was perfectly fine. It literally comes out RIGHT under the reservoir. As an update, it hasn't done it the past day and a half, so I could that mean its thermostat related, or maybe it just drips out before I park?

BurninRubb3r · May 18, 2009

davis3 said:
i think my Mishimoto replacement is leaking

They have an awesome warranty... hit them up they will replace it

Dino Dino Bambino · May 18, 2009

302GTS said:
Yeah, I checked the weep hole in the water pump and it was perfectly fine. It literally comes out RIGHT under the reservoir. As an update, it hasn't done it the past day and a half, so I could that mean its thermostat related, or maybe it just drips out before I park?

Check the reservoir itself and see if it's full after you've been for a drive and got the engine nice and hot. You may just have simply overfilled the reservoir (you'll only know that when the engine's completely cooled down) or the radiator cap may be bad and not holding pressure. Another possibility is that the plastic reservoir itself is cracked.
If you've ruled out all of those things and you still find coolant dripping onto the ground from that area, suspect the radiator.

BurninRubb3r · May 20, 2009

davis3 said:
i think my Mishimoto replacement is leaking

They warranty that stuff, call them up their customer service is awesome from what I hear

Coolant leak...

302GTS

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