Quote:
Originally Posted by nitehawk
Wow, that is rather puzzling. I was going to suggest leaving the car running on the hoist, while trying to find the leak, but that's no use if it's so intermittent. Pressure testing may only help if it's a large enough crack, since you need heat to simulate real life temp conditions.
You can try adjusting the clamps for the upper and lower radiator hoses and see if that helps. That's the only area that I can think of that may cause an intermittent leak. This would also be the cheapest part to replace to at least eliminate one potential source.
Do you see any dried up coolant on the engine block or around the head?
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Mechanics thought it was clamps, but that area is dry obviously not it. Also nothing on the upper side of the engine (cylinder head areas).
