Green & Yellow

Thanks guys! I believe it is in comfort mode, when shifting up it does it at lower RPMs (around 1500) until I reach about 40-50mph. I just went out and adjusted my T.V. cable. I will give it a test drive here when I run to get an O2 sensor.

The O2 sensor doesn't sound too bad on $ at all, actually so far the parts cost for my Jeep are far less than I am used too, if anyone on here has ever owned a John Deere and bought John Deere parts then you will know what I mean $$$.

My tires are 235/75 R15 DuraTracs and are aired @ 50psi.

I have not yet had the codes read, although a while back it threw one at me and I uploaded a video of it on youtube: https://www.youtube.com/watch?v=FqTnO6r5iHo

darknezz

uhm. didnt anyone notice 40 to 50 psi tire pressure?

Maybe I've been wrong this whole time but most tires run 30 to 35? Granted I dont know much about bigger tires and come to think of it the dodge 2500 runs 45psi.

But I've always ran around 32-34 on my cars, I run 30 front and 32 rear on the jeep, sometimes a little less. I can feel the road get rougher the more psi to I find a medium.

Lol should I be running more psi and I'd get alot better mpg? I'm at around 12 too, but lift and 31's and aggressive driving.

I keep my aw4 in power mode.

Something else to add, Lucus fuel treatment is great stuff and actually DOES help, don't waste money on like STP garb.

Green & Yellow

Hmm, on the tires I just went off of the 50psi rating on the side of the tire. I can always drop it down again.

I've never tried fuel treatment, I may have to try that as well.

darknezz

that is the MAXIMUM pressure. I wouldnt think you should/would want to drive it like that. Higher tire pressure makes less grip and bounces off bumps more.

if you look on the door sill, or maybe its in the glovebox, it says the recommended tire pressure for the vehicle

and not just any "fuel treatment" specifically lucus, I buy it by the gal.

Green & Yellow

Oh, okay. I just drove to town and back, twice. Picked up some tractor parts, forgot one, had to go back. However, I did get to see how the XJ performed in power mode. I have to admit it gets up and going much faster now, why didn't I do that sooner? I also noticed the tires ride much rougher, so I will drop them back down to 40 psi. While @ John Deere I was offered a set of 15" rims for $100, they look better than my current rims but on the flip side I really kinda want black rims. So I am undecided on that. I also ordered a new O2 sensor @ my local Napa, they did not have the Lucas Fuel stabilizer on the shelf, so maybe I will have to pick it up at a different Napa as this store is really small. However When I picked up the new sensor @ 3:30 there was another green XJ sitting in the parking lot. So I chatted with the guy that drove it in, his 96' was in much nicer shape than my 93'. Anyways, back on topic.
I have the new O2 sensor, I plan to swap it out tonight or tomorrow as well as drop the tire pressure, possibly order a fuel filter (I still dont know where that is located), and maybe rotate the tires and check out my brakes (starting to squeak a bit). Atleast the Jeep bill was only $54, I cant say the same for John Deere.

cruiser54

Fuel filter is mounted inside the driver's side frame rail, just forward of the rear axle.

Green & Yellow

Thanks! I will have to get one ordered.

Green & Yellow

Well tonight I got the O2 sensor replaced, have to say it was not easy, the small bracket that the connector sets in was bent, I also noticed that the exhaust pipe right before the O2 was dented in. It looked like a U joint blew out under there in the past, however everything now looks good. However I did get it changed and the XJ is doing good. I checked for codes but got 55 (end of codes) so nothing there after swapping the O2 sensor. I did not get a chance to lower the pressure in my tires since it got dark, but I will get that done tomorrow. I have already noticed a difference in my MPG, I drove about 60 miles today plus 14 yesterday plus 5% due to the larger diameter tires. My gauge has not yet went bellow 3/4 of a tank so I am pretty happy there. Although the more I have to crawl under my XJ the more I want a 3" lift.

DFlintstone

Cool man. Great thread. Do keep us posted. Yea, that "dent". Cruiser changed his I think. They all have them I guess. Must make manufacturing easier.

Yea, 50lbs is goofy. I might go 38, specifically for a long highway trip. Also I might run 28 for my gravel road and the 3 miles of highway to town. 32 is normal. Of course running too high will wear the center, and too low will wear the outer edges. Probably 32 is what you want.

A tire flexing will get hot. Heat will continue to climb as you go. Then, With a trailer or heavy load, definitely higher pressure and less flexing is desired.

Green & Yellow

Thanks! The dent does bother me, maybe I will get that fixed one day, probably after I get a lift so i have room to actually work with. 32-38 sounds good, it was at 40 so I will see how it rides with less pressure. For anyone who may be interested, this is my other project I have going on, just picked up more parts for it today: http://www.greentractortalk.com/foru...html#post56999

darknezz

well that explains why the 2500's tires are at 45, it pretty much is only used for towing.

DFlintstone

If you were in south west Oregon you might be close enough to bring that cridder over

Just friction. Like if you bend a wire back and forth it will get hot at the bend. As a tire "bends" where it meets the road, fiction within the rubber makes heat. If it makes more than it's loosing, the temp goes up....and up...and up....

F1Addict

The pressure rating embossed on the tire is typically for maximum bead seat pressure, not running pressure, although they are occasionally very similar. The bead-seat pressure doesn't take into account the weight or type of vehicle the tire might be mounted on which is why you should always use the recommendation on the door jam (or inside glove box).

I'm looking forward to hearing what, if any, improvement you've seen after you get a few miles on her. Here's your fuel filter...







All of this is located behind your driver's side rear tire.

Green & Yellow

I wish I did too, they are getting snow down there, nothing up here. Plus, that is just the old beater I am working on, I have a newer/much nicer unit for myself. Cant beat the 2k lbs lift capacity.

Green & Yellow

Thanks! I will have to get a new one and swap that out. Looks pretty easy to do, much easier than some of the diesel fuel filters I have replaced.