Every Weekend we play with our JK & TJ in the desert for couple hour what i note that my headers bcame to hot like hell,
Some times at night u can see it as RED LIGHT from away !
Whats ur opinion about this ?


sorry for the langueg am not that good in english

 

Are they the stock exhaust manifolds or aftermarket headers? If aftermarket, what type?

 

that's the issue with headers for 3.8- extremely hot. the way the 3.8 is designed not much heat dissipation allowed, that's why you see more cat-back only from vendors.

you can't wrap 3.8 headers because of the amount of heat and it'll destroy them faster.

you could try a new hood or figure out a way to get more air passed them to help keep them cool but IMO, take them off and put stock back on. That amount of heat will cause other components in your engine bay to wear out faster and could melt stuff too close to the heat....

Which headers do you have Ripp or Gibson?

 

everything in my JK is Stock , nothing ftermarket

 

Am not sure, it's the stock

 

Really? Wow, this comes as a shock. Something is not right. No stock vehicle should experience this. There are guys with 40's that put a huge strain on the motor, and this is the first instance ive heard of this issue

 

What kind of mileage you have? Any loss of power? Almost sounds as if slight blockage. If your cat converter is on it's way out I've seen them cause blockage which can lead to the infamous red glow. Probably not the issue but not sure what else to throw out there.

 

There was a guy here about a year ago here that complained about something similar, and everyone thought he was talking about aftermarket headers. Then he posted a video of the engine bay at night after he'd done a couple of full-throttle runs up & down his street at & sure enough they were the stock manifolds glowing away. The heat shields were missing though, removed by the previous owner, which made the glow more noticable.

With these modern emmisions-friendly exhaust systems that are designed to run hot from the exhaust ports on the heads to the cats (as the catalytic converters only work at maximum efficiency when they're really hot) maybe it's normal; there are even warning stickers on the transmission tunnel (if you pull back the carpet & look) that tell you the surface will get burning-hot to the touch as the cats are underneath, and the JK's engine bay is so notorious for getting hot that they even offer aftermarket heat-reduction hoods.

Only other thing I can think of is that either the motor's running too lean a mixture or the cat brick(s) is/are broken and causing an obstruction.

 

Ive heard that the cat material will break loose and roll around in the casing, and it will create a ball that blocks off all exhaust flow.

I run with no carpet in my jeep and I know how hot the trans tunnel can get ( my flip flop melted), but i expected it to be heat radiating from the trans. I had no idea that our stock exhaust systems would run at a point where they would glow red hot.

 

Thank u all for the information, the car under warranty it's only 15.000 K.M
i think it's beter to go back to the agency.