Hello, My 360 has recently started to make a ticking sound all the time, even when engine is off. If I take the brake fluid access panel off, it is loudest in that area. Car is RHD. Everything works fine. Any ideas please? Thanks Rob
Thanks, found the post. www.ferrarichat.com/forum/threads/ticking-sound-heater-now-not-working-video.632023/ Sound is exactly the same: www.youtube.com/watch?v=w7qTq4iXs68 Only difference is that on the 430 shown it only makes the ticking noise when the ignition is on, mine does it all the time even when ignition is off. Any idea where the fuse for the AC is please on the 360, and how easily accessible is the valve if it needs to be replaced. Thanks
Also this thread seems to suggest it can damage the ECU? www.ferrarichat.com/forum/threads/how-to-diagnose-tgk-valve.649449/
I'm not sure why the TGK would tick with the ignition off. Anyway, the TGK valve is powered by the HVAC ECU which is powered by two fuses. One fuse is (live) battery power. The other is ignition power. Both are really needed to wake up the ECU. On the F430, the ticking sound is sometimes cured by pulling the battery fuse (next to the battery). The equivalent fuse is the 50 amp fuse in a container next to the battery (in the passenger footwell). See your Owners Manual. Here's the tutorial for the F430:
Logic says it should. I'm of two minds on this issue: 1) Resetting the battery resets other computers and may erase important data and fault codes from some computers. You may not want to do this. I've read on the forum that using the isolation switch will erase the learned parameters (from the engine ECUs). I know the learned parameters are held in a non-volatile memory on the F355 (5.2), but the 360 seems to be different. 2) I've been taught not to pull and refit fuses with live power on them. I guess cutting power either way is going to generate sparks and "back emf". I don't know if one is safer than the other (to the equipment). I would be interested to see a photo of the fuses on your car, however. Some of the manuals are in disagreement about what fuse goes where.
found this, so which fuse would it be for a RHD car? www.ferrarichat.com/forum/threads/360-spider-fuse-locations.444011/page-2
LHD here: https://www.ferrarichat.com/forum/posts/146903178/ On a RHD car, everything from the steering wheel forward is generally mirrored. The battery should still be in the passenger footwell. Look in that area. What year is your car? For future reference, fuse numbers behind the seats vary on early cars. Use your own Owners Manual to identify fuses.
will try fuse 2 A50 (MFD in my book) when I get sometime. thanks Strangely even the UK book shows left hand drive car pics lol
ok, I decided to flick the isolation switch for 10mins. As soon as I cut the power, the clicking stopped, however as soon as I turned it on, it started again. So the question is what circuit would still be working when the engine is off, can't be the TGK valve. So one told me could be Purge valve? thanks
I suggest buying one of those mechanic stethoscopes (about $10) and start probing the area for the sound. They are quite excellent at isolating where a noise originates.
I see the TGK valve is on the right hand side of the evaporator on at least some RHD cars... Image Unavailable, Please Login Just in front of the windscreen. Are there any access panels on this side or do you have to cut the vapour barrier in the luggage compartment to get to the plug? Here's the equivalent on a LHD car, next to the fill port: Image Unavailable, Please Login The HVAC ECU powers the TGK valve directly. As mentioned earlier, the ECU is powered by live battery and ignition power. The only relay which would keep the ECU fully powered would be the "key power" relay behind the left hand seat. I think you'd notice if this was powered. The HVAC control panel would still operate, the little suction fan on the cabin temperature sensor, the blower fan, hot water recirc pump, etc. Plus a lot of non-HVAC related stuff... LH Motronic ECU, LH fuel pump solenoid (if ECU commanded it on), Suspension ECU, etc. I think the battery would go flat pretty quickly. Perhaps something in the HVAC ECU is keeping the TGK valve alive (using only live battery power)?
thanks is the pic from a LHD 360? I have the same access panel on the RHS, will have a look when I get a chance. Cheers
what else could cause the ticking noise in that area? Someone said it could be the Purge Valve? How about the AC canister?
Yes, a LHD 360. The evap (?) purge valve is in the engine bay. "AC canister"? I recall that if the linkages shown in this photo detach, they can cause a clicking sound, but these are in the cabin Image Unavailable, Please Login
Hi, Ok found the TGK and the connector, was accessible from the man access panel. The sound appears 99% to be coming from the TGK, however I disconnected the connector and the ticking remains :-( Any other ideas, before I take it to the garage. I did notice that if I turn on the ignition then the ticking gets slightly faster. Thanks Image Unavailable, Please Login
Quite bizarre. I though the ticking sound came from the TGK electrical motor. There is certainly no water flow with the ignition off to make the ticking sound. Maybe you could see if the noise is still there with the battery disconnected. Is the sound present with the car cold?
