Coolant game streaming out

[Heiko]

Remove the cover under the two caps...



The just fold up the wire clip on the pressure valve...



Put the oil cap back on and start it up.....
When its running and you look into coolant reservoir you'll see the water circulate through it... any big amounts of air should flush out....

H

[Steve Tinker]

What H said above, but whenever I have burped the system, I've found that leaving the valve in the open position for 3 or 4 complete heat cycles gets rid of all the small air pockets lodged in the cooling system.
In fact, I normally leave the valve open for a few days, topping up little by little every day until the level stabilises before flipping it back.

[Slate 01]

You guys are great thank you so much. Wow, pictures and everything, you guys go above and beyond. I'll keep you posted over the next few days.

[Heiko]

Sometimes pictures are easier than explaining
I hope you get it sorted out.
Cheers,
H

Originally Posted by Slate 01

You guys are great thank you so much. Wow, pictures and everything, you guys go above and beyond. I'll keep you posted over the next few days.

[Slate 01]

Thank you to all of you that were so willing to help. New cap, opened the valve took a drive with it open, got up to temp and shazaam no more leak. Thank you all so much.

I just installed topspeed test pipes and new aftermarket muffler literally just before this leak problem showed up. So anyone want to take a guess what I will be doing this weekend?

Thanks Porsche Brethren!

to you all!

[Heiko]

Glad you got it sorted out...

[MattC]

Excellend advice, all of this happened to me and then I did all of the things you reccommend and all problems disappeared, many thanks.

[rdass623]

sometimes it is the expansion valve which gets stuck open (so i have read). i had a similar incident, which i could not duplicate. i also actuated the purge valve quite a few times (pulled on the wire ring opening and closing the valve). i just topped off the reservoir purged the air from the system and it has been fine for the past 3k. i also closely monitor the engine temp and constantly looked in the rearview mirror for the next couple of weeks for the tell tale signs of leakage.

[MacGrad]

I'm having the same coolant leak issues, and they are occurring on a "frequently infrequent" basis -- the car won't leak for a few days, and then it will drain itself of the coolant from a spot near the right rear tire. When it's leaking, you can see the drip trail on the ground when the car has been moving.

Since I'm not having any issues with moisture in the trunk, I would assume (from what I've read) that it's not a leaky tank. Would a problem with the expansion valve cause this type of behavior and, if so, is this an easy fix?

(My mechanic couldn't isolate the issue, and wants to replace the coolant reservoir. I'd prefer not to, especially if this isn't the root cause of the problem.)

[Heiko]

I'm only commenting on your note below as I'm not sure why your mechanic wants to change out the coolant reservoir.... If the reservoir itself isn't leaking or has any cracks then there is no point in replacing it... I haven't seen many of the valves fail and they do come as part of the tank assembly when you order a new tank. If any air gets into the system (ie the cap isn't working right) then with less pressure the boiling point of your coolant will drop (meaning the coolant will boil faster)... you may even have some bubbles in the system in result of this..... I would say open the valve and purge the system, fill it to capacity, put a new cap on the reservoir and you should be fine...
H

Originally Posted by MacGrad

I'm having the same coolant leak issues, and they are occurring on a "frequently infrequent" basis -- the car won't leak for a few days, and then it will drain itself of the coolant from a spot near the right rear tire. When it's leaking, you can see the drip trail on the ground when the car has been moving.

Since I'm not having any issues with moisture in the trunk, I would assume (from what I've read) that it's not a leaky tank. Would a problem with the expansion valve cause this type of behavior and, if so, is this an easy fix?

(My mechanic couldn't isolate the issue, and wants to replace the coolant reservoir. I'd prefer not to, especially if this isn't the root cause of the problem.)

[jb92563]

When you loose coolant do you top it up after?

Be careful to only fill the tank to the correct line marked on the tank.

I mention that because if you overfill the tank it will always barf out the surplus while you are slowed and typically parking the car.

I only had this problem once when I decided that the coolant level needed to be near the top line and the car was on a bit of an incline so on level ground it promptly barfed the rest out after a drive while parking.

There was no issue, just too much liquid and not enough expansion room in the bottle due to my overfilling it.

[MacGrad]

I'm topping it up, but only to a point above the minimum level - since it's not a constant leak, and I can't figure out a pattern to it, I figured there's no sense wasting coolant by filling to the max line.

Yesterday was a great example: coolant leak in effect, and needed to refill. Added coolant mix to a 1/3 between min and max markings on the tank. Leak continued, and could see a drip trail on the road/driveway when I went to visit my dad.

Drove home and parked in the lot; checked a couple hours later, and no coolant puddle; nothing this morning, either and coolant level seems to be holding.

It's gotten to a point where I keep a spare jug of coolant in the trunk because I can't tell if/when I'll need it.

[jb92563]

It seems like there might be an airpocket still.

I would drive a few more days with the burp valve lever UP to let out more air.

I just noticed your from Hamilton, ON. and a McMaster U grad?

I went to Mohawk college in the 80s for civil engineering tech, but recareered in the 90's in Computer Science at Ryerson U. and U of T.

The followed the work to CA, USA in 2000.

Small World!