You can hear it from inside? My XK diesels a bit when I first start it but after about a minute -- when the idle settles -- it smooths out. It is not noticable at all from within the cabin (even with the air down and the stereo off).CT OVERLAND said:I know we have talked about this before, But the tapping / Exhaust leak sound from my 5.7 is driving me NUTZ!!! I think it was decited that it was an injector.
Has anyone had this fixed, or am I being too pickey and I should live with it?
Then I may have a leak. I hear it all the time when I'm in the gas.rubicontrail.net said:You can hear it from inside? My XK diesels a bit when I first start it but after about a minute -- when the idle settles -- it smooths out. It is not noticable at all from within the cabin (even with the air down and the stereo off).
olllllllo said:The clicking you hear is most likely the old school push-rods that we have in our high tech Hemi's. The cam is not like most modern engines with a SOHC or DOHC that directly links with the valves but rather goes back to the older (more noisy) push rods and rockers (Because of the MDS features, it is required). The unfortunate side effect of this is clickty clacks from those 16 valves and push-rods a rockin'. Mine clicks on a regular basis (more noticeable when you first start but you can always hear it if you listen. If yours seems louder than you think it should be, then by all means I would take it to the dealer. It could be a bent rod, etc.
As far as the exhaust leak, is it a hissing sound you are hearing or is it excessive engine noise? Have you looked at exhaust underneath and checked for any black carbon build up at any of the seams? You could also look for water leaking from any of the exhaust seams when you first start it up. You won't be able to really see the manifold portion but you can certainly check from the catalytic converter back. The noise could also be the sound of the engine roaring back up through the intake manifold. This will happen when you get the RPM's approaching 3000 or higher. If your using the stock intake it has sound baffles to dampen the noise but if you are using an after-market CAI, there is no "muffler" in the intake tubing so you really can hear the engine "WOOT". If you have the stock manifold, there maybe something wrong with it.
It sounds like you really should get it into your dealer if you have this much concern...
You got it!!! Thats the noise!! I'm fortunate that I have 4 or 5 dealers to choose from close to me. I'm also lucky that the dealer that I bought the car from, and the only one I have brought the car too is the furthest away.HEMI said:I agree with you, CT
The noise really sucks and it is not related at all to the intake and exhaust mods. I notice mine under light to mid throttle, mostly coming from the driver side - sounds like a leaky exhaust manifold. sounds like crap.
I really don't hear it at all when the windows are up.
Under upper mid to full throttle, I don't hear it because the "WOOT" (nod to olllllllo) takes over. then the Hemi sounds like it should.
I wish there was a fix, but my "one-star" dealer says there is nothing wrong. Keep us posted if you find a fix.
I took the car into the dealer yeaterday for 3 things. 1. Schedule 1st oil change.HEMI said:Hmmmmm... I have spent some time lying under the XK while it is idling, poking my hand around all accessable areas of the manifold down to the cats, trying to feel for the telltale"puff" that would indicated a leak in the system. I also took an inspection mirror and poked around as much as I could to try to find a discoloration that would indicate an exhaust leak. I have not been able to find anything yet, but I am very sure that I was more thorough than the dealer would be.
next step is to use a wood stick as a "hearing aid" on the motor to see if I can pinpoint any source of mechanical noise.
By the way, I notice that the noise is there, too when idling, just a bit more faint - but noticeable from outside the Jeep.
I hope we can figure out what it is, because my Jeep sounds sooooo nice with the intake and Magnaflow. It really craps up the whole package to have that noise. sounds like an old beater.