Stephen Cole

WRX MY94
Got stuck in a motorway jam at the weekend and noticed a strange ticking noise from 'behind the dashboard' or more likely from the relays down by your right knee
Every time I slowed down to a virtual stop, there was a tick, and every time I started gently accelerating forward and started moving again (at approx >2mph) there was another tick
Sounded like a relay opening and closing, but can't think what the relay could possibly be controlling
unless it was motion detection related to the ABS ?

Anyone any ideas

rickydiver

Have a look at the thread i have started on ticking this sounds very similar. I intitialy thought my problem may have been a motion sensor, but couldnt think where from ! I was thinking from my alarm ?

NelsonUK

I have experienced a similar problem with MY93 WRX - However I could watch the volt meter and could see that as the tick would first happen the radiator fan would start up. If I then touched the throttle (as in the move off) I would get another click where the fan would then stop ?! The weird thing was the fan would come on with the click and if I just touch the throttle I would get another tick and the fan would switch off. The click would always happen when the rev counter hit 800rpm or in other words idle but just a touch of the throttle would switch the fan off again....weird. Have you tried this cos it sounds similar ?

I think it may have been the aircon relay or something ?

Sandler

I've just buggered up my ECU, every now and again the tick over gets really erratic and when that happens I get a relay clicking noise from behind the rev counter area. Is that where you're hearing it too?

Stephen Cole

Thanks for the answers
I'm pretty sure it is the radiator fan syndrome
as I was crawling forward in 1st with revs dipping below 800rpm frequently, and then rising again

Can't remember if I had the air con on or off at the time
(if on, then the secondary fan would have been on continuously ?)