Wotcha All.
I've been nursing a slight coolant leak on my '98 Elite 3 litre auto for some 10 months which has got much worse over the last fortnight or so. Now I'm losing about half a pint every 30 miles or so.
With the engine warming up, visible coolant vapour is now escaping from way down on the rear passenger side of the engine. As it's quite low in the engine bay I've not been able to locate exactly where it's escaping from, whether it's a hose/pipe or the engine itself.
Strangely, the visible steam leak seems to subside once the engine's warmed up to normal operating temperature. There's no sign of mayo on the oil filler pipe/cap, no sign of oil in the coolant and a garage did a block test the other day which was negative, which I understand means it's not likely to be head gasket failure.
Can anyone please give me any advice on what it could be?
Thanks in advance.