Coolant Leak

[blkrx7]

Gday gents!

Just fighting with a really problematic coolant leak on my 95 Aurora, and figured a single searcheable thread with common leak locations might help others (such as myself) in the future. I've done searches, but haven't found anything yet.

If you've had a leak, post up where you found it

Mine's shown up after a rad replacement, doesn't want to leak at idle, but after an hour of driving the bottom of the rad support is quite wet (which also masks it's location) and I'm down 2 liters. After stopping to fill up the other day, it developed a leak around the passenger side momentarily, then quit before I could get my head far enough under the car to try and locate it. I took the car home, had the car up on stands for an hour at idle, and it refused to leak a drop. Filled it up, drove 35km's, and get a low coolant light again. <sigh> The coolant system seems to hold pressure for several hours, but some mornings I'll come out and the snow under the nose is quite green across most of the nose (still hiding where it's dripping from).

I had a leak on the upper passenger side rad hose prior to the rad replacement, which was solved with stainless gear clamps all around.


Has anyone had leaks across the rear of the engine? I know I get a single drop across the back of the block, down the pan, but seems to be a real slow leaker I haven't worried too much about. Never leaves a puddle.

Previous owner did a "bars stop leak" treatment which filled the rad and left me with a surging surge tank (dumping coolant out all over at speed) and overheating. While diagnosing that I talked to a rad shop with a breif explaination of the problems and he immediately said 'it's been stop leaked'. The rad tubes are quite fine, and fill up extremely quickly, and sure enough mine was totally plugged. So I put a new rad in, and now it's doing this.

Plugs are dry, no coolant in the oil, no oil in the coolant. Such a pain, as the car is only a foot shy of the length of my garage, and it's -10c outside, so working on it is a pain.

Thanks folks!

Paul