Does anyone know what might be the cause? My friend's 10 yr old Ka makes a strange fast tick-tick-tick noise from somewhere under the bonnet when it's warmed up. It's always the same speed, independent of road speed or engine rpm, but only appears under load. It's a bit like some ventilation fans I've heard, but it makes the noise when the fan's off.
Does anyone know what might be the cause? My friend's 10 yr old Ka makes a strange fast tick-tick-tick noise from somewhere under the bonnet when it's warmed up. It's always the same speed, independent of road speed or engine rpm, but only appears under load. It's a bit like some ventilation fans I've heard, but it makes the noise when the fan's off.
Has your friend run over a crocodile?
Clock? Bomb??
I'd guess at the fuel pump but I'm not sure where it is in this car. Might be in the petrol tank. Which engine is it?
Tony
10 yo Ka? The only engine then was the 1.3 kent derived pushrod lump. I find it hard to believe its not rev or road speed related. At that age, my money would be on something camshaft related.
Yes, 1.3. And the noise never changes in speed, just stops when you ease off the throttle. It's done it for years, apparently, so it's no great cause for concern. Just annoying.
I'll ask.
The clock seems okay, but where is the bomb usually located on a Ka?
Air-con compressor?, if the AC needs re-gassing you'll hear the clutch on the compressor kick-in/out.
Wife's Ka3 used to do this all the time,
Quick update - depends what you mean by "fast tick-tick-tick", the AC clicks on/off approx 10-seconds cycle.
Deathwatch beetle?
Theo
Nail in tyre?
No AC. This is a /very/ basic model.
No AC. This is a /very/ basic model.
IIRC these have an electric controlled valve in the heater circuit, find it and pull the plug and see if it stops the noise. sometimes the flame trap valve can make clicking noises. Unless of course your noise is pinking?
Well, it's about 5 times a second. A rat-tat-tat sound.
Dead leaf in the heater fan?
Where's Peter..?
It's probably the heater control unit. But if it's five times a second it could be something in the ventilation system.
Does the noise go away when you put the heater to full hot, full cold, or somewhere between the two?
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