On my 04 Corssifire there is a small black 'unit' that slides into a metal support in the engine compartment, just adjacent to the top of the (drivers side) shock absorber mount. It has wire plug attached at the top with (two wires) a red/green and a red wire. On the rear side is a small (1/2 inch?) hose attached and on the front is a wire with a boot that attaches and a cable that goes under the engine cover. I have no idea what it is and what it does; however, on occasion it puts out a clicking noise almost like a jumping spark from a spark plug wire. Does anyone know what it is, does and do I need to replace it since it's making the occasional noise. At first when I heard it I thought one of my spark plug wires fell off and was 'sparking.' Thanks for any advice.

 

This is what I believe you are asking about ... not sure about the noise you are hearing

EVAP PURGE SOLENOID
DESCRIPTION
This vehicle uses a pulse-width modulated EVAP Purge Solenoid. The solenoid regulates the rate of vapor flow from the EVAP canister to the throttle body. The PCM controls the frequency at which the solenoid operates in order to customize the vapor volume for each cylinder.
OPERATION
The PCM will only energize the EVAP solenoid when the engine is at operating temperature, but will de-energize it during periods of deceleration. When de-energized, no vapors are purged. The pulse-width modulated EVAP Purge Solenoid controls the fuel vapor purge rate from the Vapor Canister and fuel tank to the engine intake manifold.

 

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Pictures ALWAYS helps!


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Is this what you're talking about?

 

Thanks DeKalb.

 

Thanks for the interest and reply. DeKalb pinned it: Evap Purge Solenoid.

 

Thanks everybody for spending your time and knowledge answering my question. German (over) engineering always amazes me. They create systems where they're not needed or wanted (as far as I know). I have no idea what this evap unit really does though probably very little. Another example of their over thinking is the security pin in the ignition switch. I recently (had to) removed it with the help of a really detailed youtube video (thanks to the author). Removing the dash parts I actually had hardware left over or screws that did nothing. Anyway, enough ranting and raving. thanks again!

 

Sorry, but the EVAP system is mandated federally in the USA (and I am pretty sure the EU mandates it as well).
So you cant blame the Germans. Blame those you voted for !


You are right here, the redundant lock thing is STUPID. The idea (at least from what I gather) was to prevent someone from stealing the car by pushing that cam in and unlocking the wheel - again, stupid, you can't GET to that cam without tearing into the instrument panel and removing the lock from the column.