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Topic Review (Newest First)
02-07-2013 08:48 PM
CheepJeep2001 Only really worth it I'd you've upgraded the 2.5's intake, exhaust, plugs, heads, and so on and so on. Pretty much enough cash to have swapped to the 4.0 But let us know what you get outta it. I like hearing about ppl trying to squeeze as much outta the lemon they have.
02-07-2013 08:05 PM
Jerry Bransford Personally, I wouldn't go to the effort. You won't really see the benefit some people claim you'll get from that conversion... most of which is probably the Placebo Effect in action. Jp Magazine at one point said they might have even noticed a slight loss of performance after installing the 4.0 TB.
02-07-2013 06:31 PM
TJspeed I dont know if this will help you or not. Dethrottled - Throttle Body Upgrade - Jp Magazine
02-07-2013 06:10 PM
tallzdatank id try easy outing the bolts, set of easy outs $9. 20 mins of work, and the jeep is back on the road
02-07-2013 05:58 PM
4.0l throttle body swap help

Here is what I'm looking at. Anyone know if I can purchase just this housing the IAC valve mounts in?
Attachment 207012Attachment 207013

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02-07-2013 05:17 PM
Jeep Dad Maybe get some easyouts??? That might help
02-07-2013 04:58 PM
4.0l throttle body swap help

I am swapping the throttle body on my 2.5l for a 4.0l. I swapped all the sensors and noticed the 4.0 throttle body won't fit on the manifold because the IAC valve housing (the one thats removed with tamper torx head) has a metal tab that blocks it from sitting flat. When I removed the IAC valve from the 2.5l throttle body, both of the bolts snapped from being rusted, so now I have no way of installing the new IAC into the housing. I was just wondering if it was possible to buy a housing that the IAC valve is screwed into.

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