95Cherokee

....it states that in the first pic the restriction can easily be seen...???

WHAT restriction, I don't see one.



For the second pic it states the restriction has been removed....???

I don't see anything removed.



https://www.cherokeeforum.com/f51/bu...location-2599/

And if there is a restriction, why didn't Jeep remove it themselves?

And if relocating the Intake Air Temperature sensor gives another 1 mpg, why didn't Jeep do it themselves?

wildspear

The restriction is shown in your first pic. You take that restriction (funnel, extra plastic, what ever you want to call it) out of the intake and it will drop you temp. Mine dropped by 15 degrees just by doing that.

I believe they put it there to help with emissions. I don't know for sure but that's what I think.

95Cherokee

Why didn't Jeep just strap an anchor to the rear end?

Guess the air box restriction was cheaper.

wildspear

CheapCherokee

if it helps here's what the restriction looks like out of the air box:

95Cherokee

Thanks Cheap Cherokee, Imma bout to yank it out right now.

fantic238

That is not just a restriction.. It is a venturi tube that creates a slight vacuum in the crankcase ventilation system in order to aspirate the crankcase fumes. It is an emission control device.

95Cherokee

I've disconnected that tube and hooked up a crank case breather anyway so it doesn't matter.

djb383

What temp dropped 15 degrees by removing it??????????

95Cherokee

More cool air to the engine will cool it a little, don't know about 15 degrees though.

wildspear

The temp drop was the gauge on my dash so I dont know how accurate that is. I was running about 200 on the temp gauge. After the airbox fix it dropped to 185.

Donnie_K

won't have heat at 185 with the stock thermostat, it doesn't open up until 195.

kbad

hey man...the whole air box is a freakin restriction......it's done to please the emission police, and limit the output without jacking with the engine/electronics, etc.....just yank out the stupid air box (i've done it with my jeep, mercedes and vw) and replace it with the largest open-ended cone filter (large surface volume like a P5), that will fit instead of the restricted, heat absorbing, small surface area, air box....your engine will thank you forever.....done!

rich

I dont have one of those in mine I want one I feel so left out.

djb383

Wouldn't a 185 open at 185, like a 195 opens at 195?????????? U can tell a differece in 10 degrees????????? 185 is cold but 195 is hot?????????