ticking in engine bay but not from engine..HELP

**ronotron** · 10-07-2009, 05:56 PM

hi guys...

my car has recently developed a ticking noise, but it sounds more like something arcing out than from the engine... so using a length of hose i managed to isolate the cause of the ticking...behind the drivers side cylinder head on the V6 ecotec, between the head and the firewall is a black box with wires going to / from it... (sorry too dark for a pic)... this is def where the ticking noise is coming from... Does anyone know what this box is and what it does???

cheers

Ron

**Vee-ard** · 10-07-2009, 06:16 PM

its a bomb.

no seriously.. the fuse/relay box?

**ronotron** · 10-07-2009, 06:26 PM

not the fuse box.... its a small black 'box' between the rear of the drivers side cylinder head and the firewall....

**Haydz** · 10-07-2009, 06:58 PM

brake booster?

thats all i can think of thats black in that direction.

**Vee-ard** · 10-07-2009, 07:01 PM

same here, unless its something aftermarket
or just painted black..?

**ronotron** · 10-07-2009, 07:06 PM

c'mon guys, the brake booster is not tucked in between the head and the firewall..

**(CODEZ)** · 10-07-2009, 07:06 PM

fuse relay is all i can think of over there, and ABS but thats not black or a box

**ronotron** · 10-07-2009, 07:55 PM

its seems to be attached to the rear of the head... it has wires running into it wth a red electrical connector

**Sgt Santa Cruz** · 10-07-2009, 10:02 PM

theres no EGR valve there is there?? (Exhaust Gas Recirculation) incase you ask lol its a soleniod they tend to tick

**Philthy** · 10-07-2009, 10:06 PM

Some kind of aftermarket immobiliser or alarm maybe?

**95 vs stato** · 11-07-2009, 10:13 AM

Possibly the purge solenoid one pipe goes to to the manifold and the other to the purge tank. (at least on mine its does)

**ronotron** · 11-07-2009, 10:40 AM

now weire getting somewhere....

does your "purge solenoid" have wiring with a red connector/plug?

and if its constantly ticking does that mean its stuffed, or is something else buggered and causing it to tick??

**ronotron** · 12-07-2009, 10:43 AM

ok,

found out that it is the purge solenoid, it has two vacuum lines, one runs to the top of the charcoal canister and the other to the TB, is this how they should be? And as the ticking is still sending me nuts, can i just disconnect the wires from the solenoid?

**ronotron** · 13-07-2009, 06:39 PM

bump......

**danja** · 13-07-2009, 06:48 PM

Photos might help.

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