Jeep Wrangler Forum

Jeep Wrangler Forum (
-   TJ Tech Forum (
-   -   loosing power (

00tjwrangler 07-21-2010 06:34 AM

loosing power
Ok I got a 00 tj 4.0. It has 75000 miles. I got it a little bit ago. And it had 31 10.50 15 on it but they sucked in the woods I mean u could sit on down leaves in 4high and spin. So I but 32 11.50 r15 ok they r mudders. I started noticing I was loosing power when I am crawling up a hill in 1rst gear in 4 high but if I had the petdal to the metal it was fine I. Started to notice this half way up a long steap hill when it about stald out on me. But. My oil pressure is going from 60 to below 20 when I'm doing this. If I'm in 4 low I'm perfectly fine. How could I get a little more power. I got a trip coming up and don't want to be the last one because of the power lost.

00tjwrangler 07-21-2010 08:08 AM

Anything is welcome

HyperBuzzin 07-21-2010 09:01 AM

I'm usually in 4lo the entire time when off-roading. I use 4hi just for on road when the weather gets nasty.

InfernoGirl 07-21-2010 09:14 AM

Regear or put on smaller tires. What gears do you have now? No clue about the oil pressure tho.... :|

Ken Steele 07-21-2010 09:16 AM

4 hi just isn't geared to handle long steep inclines. You gotta use low range. What is your RPM when the oil pressure drops to 20?

00tjwrangler 07-21-2010 09:16 AM

Idk wat gears probly wat comes with a stock tj. And 4low works fine with me I just didnnt know one of my jeeping buddies said put in a manual oil gauge in

InfernoGirl 07-21-2010 09:21 AM

Stock TJ's come with a wide range of gears... Depends on how it was ordered from the factory. Crawl under it and look at the tag on the rear axle... the last three #'s are your gears.

00tjwrangler 07-21-2010 09:29 AM

The rpms are about 500 to 1 grand. And if I'm am really stepping on it the oil pressure is fine and it will go back up. And I will look after work

doclouie 07-21-2010 01:37 PM

Idle oil pressure of 20 psi is good and x2 on the keeping it in 4-lo.

All times are GMT -5. The time now is 02:09 AM.

User Alert System provided by Advanced User Tagging v3.1.0 (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.