hey all, sorry 'bout being a newbie and just coming in and asking questions. searched around and have some direction, but have a couple of (probably dumb) questions. this is a 2000 tj, se with a stick we're talking about. has a KN air filter.
lately it's been hesitating when accelerating, right around the 2k rpm mark, so up around 2500-3000 before i shift, it's good, then when i shift, it's back to around 2k and lags until the rpms get up. seems to get better and worse, and seemed to do it less when the weather was cold and i was running the heater, i don't use the a/c, but my wife drove it a few times recently and used the a/c.
now my engine light came on and i've tried to do the 3 key turn on to get a code and it doesn't work. (i've done it on a dodge truck and it worked.) it will start but runs rough, revs rough and acts like it doesn't want to rev and then sputters and dies after revving.
from what i've read, sounds like i need to clean my idle air controller and throttle body. i can look up how to do that, but is that the best first step? what kind of cleaner to use? and really dumb maybe, but do i need to hose my engine off before opening up the air cleaner, throttle body and stuff?
also, this jeep has been driven as a daily driver, has about 130,000 miles on it, and hasn't had anything done to it besides regular oil changes. i cleaned the air filter and re-oiled it a while back, could anything have happened then?
what other kind of maintenance should i do while i'm messing with stuff? plugs, wires, distributor cap...?
also, my jeep has had a slow, on and off radiator leak, i've just added some coolant when it gets a little low, hasn't run hot. looking under the front, that's what this would have to be, right? and as long as it's not hot, it's not absolutely urgent, right?
thanks for any help you guys can give.