Blowing your coolant
MY 1.8-litre 2002 Holden Astra has been leaking about half a litre of coolant a month for more than a year. It is dripping down the back of the engine, mainly when hot, but not all the time. I can see a T-shaped hose at the back of the alternator/ water pump but it appears to be coming from above there. Could it be the head gasket leaking or are there more hoses further up?
Alan Johnson I DOUBT very much that it is the head gasket. I reckon you’d have seen the engine temperature rise if it was a leaking head gasket. You won’t know until you actually pull it apart and check it, but I suspect the water pump is leaking.
OVERHEAT IS ON
LATELY my VS Holden Commodore V6 has been pushing out any water or coolant I have topped it up with, even if it is a short distance. I noticed today when I was coming back from the local market, a round trip of 10km, that the temperature gauge hit the hot mark. I can’t see any signs of leakage but I must be losing it from somewhere for the gauge to hit the hot mark even though the fans cut in automatically. Could it be due in part to the grille design? The design doesn’t leave much area for the air to flow, which I think is not helping the cooling system. Any ideas please?
THE engine is overheating, that’s what the gauge is telling you. You need to have a mechanic check it. Any number of things could be causing it, from a blocked radiator to a blown head gasket. It’s nothing to do with the grille.
THE wipers on my restored 1975 HJ Holden Ute shudder across the windscreen on the downward stroke, particularly in light or easing rain. The complete mechanism was restored as best I could to eliminate any wear-induced play, plus I’ve fitted new blade assemblies and a new screen. I’ve tried RAIN-X, which makes the water bead and run off, but doesn’t stop the shuddering. What can I do to eliminate it?
Reg Buchanan, email THEY shuddered when new. The problem is that
Cool runnings: A leaking water pump is likely in the Astra