Where's This Coolant Leak?

[taynewguy]

Recently noticed a small pool of coolant under the car everytime I park it - it drips down from near the gearbox but originates from somehwere above that from what I can see i.e. at the rear of the engine/firewall somewhere????

I've been under the bonnet, under the car, everywhere but I cannot pin point where the fluid is coming from.

It is a reasonably small leak but it is getting worse. Luckily it hasn't lost enough fluid to overheat just yet so I've just topped it up for the time being.

Any ideas where it might be coming from?

Cheers,

Tay

[Godzilla32]

Probably heater hoses and connections to firewall/heater core

[clakka]

mate I had a similar problem...mine was coming from a hose from the back of the engine coming from under the plenum and then back into a pipe right near the rocker cover...had to drop the starter motor to replace it

[taynewguy]

Nothing I can see though - which guarantees it's gonna be a bastard to get to right?

Hmmm under the plenum maybe......will have another look.

Better off taking to a workshop so they can get to it with a hoist?

I don't have the time to be messing with this thing. Estimate on hours x $80!!!

Man this car is starting to give me the sh!ts - asthetically and mechanically spot on but the little niggly things drive me nuts. Leaks left right and centre.

[Godzilla32]

I forgot there is a heat exchanger that is sandwiched between your oil filter and block. It also has 2 coolant hoses running to it..

[Duncan]

there is a world of pain under then plenum there, plenty of pipes to crack

[eMsta]

I have had coolant leaks, but thats due to a rusted welsh plug. I believe that it might be wise to just check to see that all the plugs are ok in the car - just to be safe (welsh plugs are there for each cylinder - am i right?).

Good thing you found out about it - I was driving the car, didnt even realise that coolant was leaking - was on empty by the time i got home one night, and the temp guage just shot up - boy did I feel stupid for not checking the leakage.

[taynewguy]

Yeah I get this sorted - taking it in on Wednesday. I'll update this thread after that. Fingers crossed it's not too expensive.

[predator]

hmm.. my bet is about 3 hours work for them to remove and refit the plenum.. its a bitch to do .. but those hoses always go on rb20's..

good old rb25, so much more room under that side

[Topaz]

ok, super coincidence here, I have the same issue notice yesterday when parked at work. Hopefully its some kind of hose leak and nothing more severe.

Good luck Tay, let us know what you/they find...

[justin911]

i had the same issue recently, took me bloody months to figure out.. turned out 2 or 3 out of the 10 or so bolts that hold the water pump on werent on tight enough. You could see little bits of coolant where the gasket goes, and if you looked close enough you could see a few of the bolts were sticking out abit.

[Topaz]

I can see an hear mine at the back of the engine behind the plenum. As the pressure dropped after the car was turned off it started spraying out. I lost a lot of coolant after that, I'll have to try and get it booked in somewhere soon too

[Topaz]

Just been told by Hyperdrive that I have a similar problem to Tay and if the plenum has to come out theres a lot of labor involved and could be a $600 job. Hopefully its just a starter motor out job....

Damn GTR raping our wallets again

[burnsie]

i reckon its the heater hose

[taynewguy]

I may well be getting raped by my GTR as we speak - damn.

If the plenum has to come off I will cry.

Had a sh!t week with bad traders and the like......some days I wish I never owned a GTR.

[Craved]

pretty sure the GTR's run the water feed for the turbos around the back of the head like GTST's.

i have had that one let go before

[RANDY]

It's definately coolant, and not A/C water that's fallen after condensing on the pipes?

[Topaz]

Hey Tay, you get your car back yet? Whats the bad news?

[taynewguy]

No haven't got the car back yet. When they pressured it up we had a steady stream of fluid flowing from under the plenum towards the back of the motor.

Pin-pointed the hoses by the sounds of it and they'll attemp to get at it today (when hoses arrive) by dropping the starter motor.

Should have it back today - I'll keep you posted.

[Duncan]

sadly there are about 5 coolant hoses under the plenum to choose from good luck