Sudden loss of 5-6Mpg.Oil Light... Need Help... Beer No Help

RED_KJ_666 · **Posted:** Mon Mar 02, 2009 8:07 pm

I have done nothing but change the plugs (NGK Iridium Plugs) in the last month it runs and idles fine but its just mowing through Gas in the last week, Also oddly enough it has started turning the Oil light on after sitting 5-6 Hours, If I turn the key off and turn the Liberty back on it goes out if I don't it will stay on until I restart. Anyone have this issue? Ideas on what it might be?

ATXKJ · **Posted:** Mon Mar 02, 2009 8:12 pm

there have been several posts about the pressure sensor dying.

http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?t=37186&highlight=oil+pressure+sensor

http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?t=36727&highlight=oil+pressure+sensor

RED_KJ_666 · **Posted:** Mon Mar 02, 2009 8:19 pm

But would/Could the sensor dying cause the Fuel Issue? I also am Getting No Codes, and have had it on a Genesis code Reader.

tjkj2002 · **Posted:** Mon Mar 02, 2009 8:59 pm

Get rid of the NGK's,also check the PCV valve and fuel pressure.

Tokyojoe · **Posted:** Mon Mar 02, 2009 10:40 pm

Beer can be helpful. Drink enough and your troubles are gone....for a few hours. :lol:

RED_KJ_666 · **Posted:** Tue Mar 03, 2009 6:05 pm

tjkj2002 wrote:

Get rid of the NGK's,also check the PCV valve and fuel pressure.

Why would I Replace New NGK Plugs? Has anyone had problems with NGK Iridium plugs or is that your personal Preference? NGK is my Choice I've had Bosch plugs come as flat out garbage many times. I changed out the PCV today it was cracked open at the Elbow, Same drill after work tho Oil light, and no Code.

KJ kyle · **Posted:** Tue Mar 03, 2009 6:38 pm

make sure the plugs you put in are all working, maybe you dropped one or something, also make sure they are all connected to the coil properly, i know it doesnt make alot of sense why that would change your oil pressure, but if the plugs are the only thing you changed, thats where i would start...

DryBones · **Posted:** Tue Mar 03, 2009 7:02 pm

any of the new plugs get cross threaded? not sure if this would affect oil pressure but just a thought. BTW, I am running the NGK Iridiums with no problems yet and no increase in performance either. Just threw money away I could have saved for something else. As soon as it warms up I am going to something more reasonable, possible some Autolites.

RED_KJ_666 · **Posted:** Wed Mar 04, 2009 6:42 pm

It's at the Stealership They are replacing My Pressure sensor, Fog light wiring Harness (It melted down last night), checkin' Out the Transmission that also stopped going into OD last night,and also looking into a weird Vibration it developed at the same time the Tranny started messing up. I love Warranty, all this happened on my drive home from working on my buddies YJ, I think the KJ got a little jealous of the lift and 31's and took a doo doo.

JeepinJarhead03 · **Posted:** Wed Mar 04, 2009 7:38 pm

yikes, let us know how those repairs turn out, sounds like you were developing a short that was affecting more than just the harness for your fogs

1996xj · **Posted:** Wed Mar 04, 2009 8:34 pm

Funny!!

My oil press light poped on this morning, turned it off then on and it went away, chrysler and GM oil press. sensors are CRAP!! :roll:

JeepinJarhead03 · **Posted:** Wed Mar 04, 2009 9:28 pm

these freak 'issues' better not be contageous

RED_KJ_666 · **Posted:** Wed Mar 04, 2009 11:03 pm

My post says doo doo lmao.

KJ kyle · **Posted:** Wed Mar 04, 2009 11:15 pm

must be 5 o'clock in canada ^^^

RED_KJ_666 · **Posted:** Fri Mar 06, 2009 7:38 pm

I got the Little Red Devil back today. There was alot replaced most of the wiring Harness, The computer for the gauges, The Gauge cluster, Fuse block(Dash and Under hood). Tean Computer,Engine Computer, Dealer says he's never seen one so F'd in the electrical dept. Added bonus is they didn't find the cause or Definite cause anyway. Also Upper ball Joints, Passenger side CV shaft, and Wheel bearing where replaced. They where my vibration that came about oddly enough when it took an Electrical doo doo lol.

cowpie · **Joined:** Mon Jul 25, 2005 9:00 am **Posts:** 26

I had some oil light problems at idle recently. I had just changed my oil, and it started. I normally run 5w30 in the winter and 10w30 in the summer. I figured spring was coming and I could get away with 10w30 for this change. False. It dropped below zero (F) for a few days last week, and with the 10w30, the oil light would come on every time the tach dropped below 700rpm.
The past couple of days, it is back in the 40's and the oil light is gone.

If you are in a cold climate, and the new sensor doesn't work, don't overlook lighter oil.

RED_KJ_666 · **Posted:** Sat Mar 07, 2009 11:53 am

5w30 is what the Dealership Recommends. Mobil 1 5w30 Full synthetic is what I run. Sorry all you Amsoil nuts, but Amsoil killed my snowmobile and now I don't trust it.

Sudden loss of 5-6Mpg.Oil Light... Need Help... Beer No Help

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