Hello i have been in a battle with a random ticking at idle and its driving me crazy. I replaced the following, valve cover gaskets, Iridium Bosch Plugs, changed the oil, and wiped clean the coil packs. The wires were still in very good shape. It does not have a mis fire, i do suspect a vacuum leak but im not concerned with it right now. It runs great and idles smooth as can be, but the vacuum leak makes it rise up and down slightly. BUT I AM MORE CONCERNED WITH THIS TICK! I have a video i will upload and post the link.

Thanks for the help, I owe it to the forum for saving me hundreds in labor.

Video: https://www.youtube.com/watch?v=IQAV...ature=youtu.be

 

Mine was ticking on the driver side, but I did not have a miss. It was definitely a bad wire causing an electrical arc somewhere (although they looked great). It did not present as a miss thanks to the two spark plugs per cylinder though. I had close to 100k miles, so I just changed my wires and plugs and it went away.

I will wait for your video to try and confirm the sound.

Ryan

 

Okay thanks video link is posted in first box of thread

 

After listening to the video, I think that sounds more like an exhaust leak. I could be wrong, hopefully someone else will confirm, but it does not sound like an electrical "snap" like mine was.

Good luck, hope you figure it out. Things like that can get annoying pretty quick.

 

I just listen to it real quick and it sounds like a exhaust manifold leak.

 

okay now i need help trouble shooting that..... please and thanks, i hate being a pain but i truly appreciate everyone

 

Exhaust leaks are a pain... Sorry, but you just have to get in there and track it down. More than likely one of the gaskets are leaking.

I would move from the easiest to hardest. First thing I would do is make sure all bolts and O2 sensor are tight. If everything appears tight I would try to inspect the donut gasket on the back of the manifold (from your video it sounds like it is closer than the engine than that, but I would still check). If leak is still present, I would remove exhaust manifold and hopefully find where one of the gaskets between the engine and manifold are leaking. Worst case is you have a cracked exhaust manifold and would have to replace it.

Gaskets are pretty common online - I did not check any local stores, but I assume you can order them in too: More Information for VICTOR REINZ MS19393

Used exhaust manifold:http://www.ebay.com/itm/2004-CHRYSLER-CROSSFIRE-RIGHT-PASSENGER-SIDE-EXHAUST-MANIFOLD-HEADER-OEM-/121124839709?pt=Motors_Car_Truck_Parts_Accessories&hash=item1c339a611d&vxp=mtr
I would do some searching for exhaust manifold or header upgrades. If I remember correctly there was a "steps for removing manifold" somewhere on here, or possibly on the SLK forum. I think (double check before you do it) the easiest way is to loosen the motor mounts and jack the engine up on whichever side you are working on.

Once again, good luck. I go through a bottle of Liquid Wrench whenever I work on exhaust. I soak every bolt for about 3 days in a row prior to trying to remove anything.

 

Sounds like an exhaust leak to me as well. Sounds like it's coming from the engine area closer to the firewall. Just to be sure, if it is missing, it may also be a vacuum line. Exhaust leaks don't generally cause a miss. Vacumn leaks do!!!!!!!!!!