What was done to your JK this week?
Not sure of the total years but mine is a 2007. You can visually inspect the manifold after removing the heat shield and looking for hair like cracks or you will hear it on a cold start up if yours is bad like mine. It sounds like the exhaust is exiting at the motor instead of through the muffler.
1. Before
Attachment 613337
2. Cleaned it up
Attachment 613338
3. Paint and image prep
Attachment 613339
4. Finished product
Attachment 613340
Attachment 613341
Attachment 613337
2. Cleaned it up
Attachment 613338
3. Paint and image prep
Attachment 613339
4. Finished product
Attachment 613340
Attachment 613341
If you look at the pictures that GreenJK07 posted they are usually cracked between the first two tubes on the driver side. You can visually inspect, but you have to remove the heat shield which is a PITA!! I know the earlier models 2007 & 2008 are having this issue, but I don't know if 2009-present are having issues. I noticed mine when my MPG's dropped and I opened the hood and heard a weird "hiss". I hope this helps!!
Sent via Jeep wave on my NSA-approved domestic espionage device.
Got my reciver hitch put on and whatever-guard on the interior (for the interior warranty or some crap) today. Got to take my freedom panels out today for the first time too! If I had mirrors the doors would be off as well... I'm itching to get them off, might have to scrounge the shop for an old set from something I can make into hinge mounts or something...
Got her back from the shop today. Rust, paint and leather protection package and tinted all the windows. Hopefully I'll be plasti-dipping the wheels and Jeep emblem and tinting the turn signal and tail lights this weekend too!




Has always cracked me up how the 3.8 got labeled a mini van engine as if that's all it was ever used in. Anyways...proceed..