yes, actually this is my first vehicle and i want to take car of it, i'm slowly learning about it, i want to be able to take care of it so that way it'll last me a while, i just worry and ask questions about everything i can think of and have questions to that way i probably know the answer when something comes around like it. I just don;t want to get stranded on the side of the road after a long trip. That's all. Hey i might have OCD i might not i don;t know nor do i care TBH, i just worry and ask questions, it's what i do, what i've always done.

 

If your oil pressure is truly dropping to zero when idling, then I wouldn't worry about anything else untill you get some oil pressure (read replace main bearings, or replace the engine) Just my 2 cents worth of advice to a new jeep owner.

J ust E mpty E very P ocket.

 

what exactly does it mean when the oil pressure drops to zero? the engine runs fine though, picks up nice, runs fine, idles smoothly, had to replace an o2 sensor which was causing it the idle VERY rough but fixed now. the oil pressure raises up to 30-40 when running, so maybe it's just the sensor?

 

Reasons why your oil pressure gauge would read 0:
Bad gauge.
Bad pump.
Bad sending unit.

If the pump/sending unit are old and worn out, then this may be an accurate reading. But like suggested, have it checked. No sense in just throwing money at it. Same is to be said for your front end- try to pin point the problem and address what you know to be bad. I still say your probably in need of a good balance and rotation OR, possibly new tyres, if the ones one now are too worn. And as for having to stop to allow vehicle to cool, this is not normal. If you are experiencing overheating issues, then address them ASAP! Don't rely on making frequent stops to compensate. You will eventually damage something like the head gasket, which will allow coolant to mix in with the oil, at which point your engine will probably be toast.. Have you:
Checked all fluids and filters?
Checked battery terminals and lead wires- both ground and live?
Had a balance/rotation/alignment?
Have you had it on a diagnostics computer (code reader) to verify all codes are checked and cleared?

If you answered no to ANY of the above: go do it! If your planing a road trip, then the last thing you need is something like a weak wire to fail or low oil (or low oil pressure)... So be methodical, and for your trip, be prepared! Bring extra fluids for your rig! Oil, power steering, break fluid, tranny, water for radiator.. Bring some tools, mechanic gloves, flashlight, fuses, tape- both electrical and duct tape, spare tire and working equipment to change tire. May I suggest http://www.hi-lift.com/ This lift does several things: lifts, clamps and can be made into a come along with an adaptor kit. Quite handy.. So yea, that's all I can think of! Cheers!

 

Aside from a problem with the sending unit or the guage;
low oil pressure means the oil is flowing throughout the engine with low resistance. This may be due to the oil pump, oil viscosisty. or as I eluded to earlier worn main bearings. When mains are worn there is a larger gap thus less resistance to the flow of the oil. Which equals low oil pressure.
So, get a mechanical gauge and test to find out whethernits the gauge/sender or the bearings.

 

in my opinion and please remember its just that. you are going to make yourself old before youre time. sure nothing wrong with asking questions i agree but sometimes you just have to try things, take the plunge etc. nothing ventured nothing gained. when you asked how to put in 4 wheel drive you got an answer, ok go try it, you instead chose to post like 3 or 4 more times about doing it. you are overthinking it thats why i suggested getting a manual, it will help you understand how things work,and how to work them.
again im not attacking you but ive got alot of years on you, and seriously , sometimes just have to take a chance and venture into the unknown, thats how we teach ourselves, and in turn teach others. you have had many good suggestions on here. take some of the advise and go use it.
like youre oil pressure issue that should be job 1 at this point you have gotten answers all good ones,so now go use that info figure out what is going on and report back. at some point your questions become redundant and without you actually going out and doing something theres no point in continueing to ask the same question over and over.Im sorry if you think im attacking you im actually giving you the same advise i would and have given my own children. good luck,keep us posted on what u find with the oil pressure issue


ok i stand corrected you didnt repost 3 or 4 times about trying out 4 wheel drive but you get my point...ken

 

Bit of an update, the oil pressure seems to be doing ALOT better i watched it and it stayed at 10 when idling and when driving between 30-40. And also another question i noticed that when driving sometimes the driver side front tire makes a little bit of a squeal like i'm pressing the brakes but i'm not, but i need to get new ones anyway, also all tires are new a balanced, and allignment has been done. I agree with you ken i will try and venture on my own but i will still ask questions. One more thing my windshield wiper pump stopped working a little bit ago, it was working, then i had disconnected the battery, i changed the front o2 sensor, reconnected the battery, now it doesn't work -.-. any ideas? i think it might be a loose cable or the pump burned out somehow. I'll give the wires a looksie and keep ya posted.

 

disc brakes many times have a built in piece of metal that will cause a squeal when you are in need of brakes. i dont think our brakes have that feature but its easy enough to pull a wheel off and inspect the brakes. does it stop when you apply the brakes?
And glad I didnt offend you , worrying, and stress are really detremental to your mental and physical health, just trying to help you learn to trust youre instinct. Sounds like you have technical skills and some know how, dont be afraid to use them

 

yeah it stops when i apply the brakes, also my drivers side does squeal when i press the brakes at a certain pressure too, we shall see i need to buy my self a jack, that's one of the main reasons i havn't messed with the wheels or brakes yet. Gonna flush my Radiator, and put new oil in it, because i don't know how long ago it has been done, also my radiator fluid in the radiator is rust colored, flushed it before and it had rust goop looking stuff but a flush cleaned it, still has a small tinge of rust to it, but no goop which i'm happy about, so we shall see after, also if i get a jack i'll try to take a look at the brakes, i'll keep ya'll updated. thanks for the help guys

 

Update! did my first oil change, it's easy, only difficult part is when you have a rounded oil plug -.-. got it off finally. So here's my new problem -.-. I turn the car on and now the oil pressure gauge is at zero, i think i know what happened but i have a picture to see if that actually is what i think it is. Also the oil i took out was pitch BLACK, it's such a difference to see the new oil and the old oil. New Oil filter in there too an K&N. And yes i lubed it . Uploading pictures now.
I think i broke this when i was putting in the oil filter, any idea what is it?


This is the color of my old oil:

 

Thats your oil pressure sensor...its qhy your gauge is reading zero lol

 

that's what i thought, thank you

 

the car will still drive just fine even with it broken, right? i need to drive it to get a new sensor

 

As long as it isn't leaking. Run it for a few minutes and make sure it isn't before you go anywhere.

 

Nope not leaking at all, so i've got a new question. I cleaned up the oil in my oil pan and i found a few small metal shavings is this a bad sign? or should i be expecting the engine to go soon? and by oil pan i mean the pan i drained the oil into