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02 4.0, 180k miles. I’ve been chasing this issue for awhile now and I’m running out of ideas. It seems like 50 percent of the time it runs amazing, idles perfect, great power, no issues whatsoever. But then other times I have to get up into the 2700-3000 rpm range before it seems like it had any...

My 4.0 sohc has about 180k miles on it, it’s always felt like a sluggish engine but never anything too bad, especially compared to my last 3.0. But I’ve noticed my truck seems to run considerably quieter and feel stronger if I run a higher octane fuel, usually midgrade which is like 89 octane...

02 4.0 soho 4x4. Recently I’ve noticed that when I hit the throttle any considerable amount(2-2.5k rpm, gets worse the higher the rpms) the engine starts making a clicking noise? The best way I can describe the sound is someone clicking their tongue but at 2000 rpm, I haven’t exactly been able...

Recently my 4.0 has had some power issues around midrange, as well as a burbling noise around 2500 rpm but only when there’s a load on the engine (driving). It’s always been very loud considering the stock exhaust but I never thought anything of it. At first I thought maybe it was a clogged...

No funky smell but it seems to be all the time, even worse at low rpms

02 4.0 4x4. Starting about a week ago I’ve a significant drop in power, and a very loud exhaust sound, I’ve checked everything and nothing seems loose or leaky, but those can be hard to find. I had an 02 sensor fail awhile ago and it was broken for about 2 months before I finally fixed it, could...

I plan on getting a Rough country 5 inch lift for my 02 4x4 eventually. I don’t want to do a body lift but I also want to be able to fit 35s. My question is can I use the 3 inch lifted torsion keys I have already in tandem with the lift? I know the RC lift uses stock keys at stock crank so...

I recently went to put lifted Torsion keys on my 02 4x4, but due to a few issues I couldn’t get the keys in so I decided to wait. When I took the old keys out, the rubber pads under the stock keys fell apart, is it going to hurt anything riding without them? I cranked the keys back tk where they...

That size is like, 30.5, and I have 31s, so if your springs sag a little more than mine then you’re about the same spot I am, when I did the shackles I went from 5 inches to 7 inches, but still, I feel like it should be more, but I also have factory lift blocks and if you don’t then you’re about...

Well they where suppose to be 2 inch lift shackles, 4 inches all together, which they did raise it 2 inches, but between the springs, the 2.5 inch blocks and the shackles, there’s 7 inches between the top of the tire and the fender, and 6 in the front with maxed out factory keys, I feel like the...

Okay, I recently installed a shackle lift on my truck, I have 2.5 inch factory blocks as well as 2 inch shackles, I would imagine my truck should set pretty high, but the rear end is only a single inch higher than the front with maxed out t-bars. I feel as though the leaf springs may be the...

It’s a truck, I use it for truck stuff, if it rides rough it’s okay, I’m just worried about cv axel angles becoming an issue and binding

I want to be able to put 33s on the truck, I plan on doing this lift plus a 3 inch body lift, figure that’ll give me 4-5 inches of lift in the end depending on how this one goes

Okay, I’m a little new to some of this stuff, I found a kit on Amazon, a 2/3 inch lift, it’s just some 2 inches shackles for the rear and new torsion keys that say they can go up to 3 inches for the front. My truck has the factory 2.5 inch lift blocks and maxed out torsion keys up front. Would...

i get a “bank 2 rich” and a “bank 2 lean” code (it switches, sometimes it’ll say one, other times another, I think the o2 sensor is messed up, I’m changing that when I get the chance, I do think I have a vacuum leak, as my AC doesn’t change off of defrost, I’ve checked the vacuum res (the little...

My 02 4.0 sohc started throwing a code for a rich code on bank 2, but only bank 2, I’ve yet to find any sort of reason for it, as most issues should be for both banks, any recommendations?

My 02 4.0 was broke down for awhile, finally got it back up and running, but sometimes I get these random surges. It’s worse while idol but happens while driving too, when it’s i doling the whole truck shakes and the engines acts like it wants to stall, when you’re driving you can feel it die...

Got my 02 ranger running right after awhile, but my AC only blows from the defrost vents and from under the dash, heat and cool both work, as well as the fan speed, just the vents are weird, would I be correct to guess a vacuum leak? And if so, what are some common places to check

My 02 sohc 4.0 needs a transmission, I’ve been looking around and I found someone Parting out a 98 explorer ohv , I’ve seen some people say that the transmissions are still compatible, anyone have any experience swapping between years like that? I know there’s a 1 bolt difference between the...

I’ve seen those types of “electronic turbos” but no, this is essentially a normal turbo just With a motor attached to run it, they look fairly standard in that aspect, they don’t offer much in terms of specs but I would imagine it would be able to build a few pounds Atleast, they offer a “230+...