But seriously I have no idea or how long.
Pulled into a parking lot today coming back from a July 4th trip to grab some food.
30 min later I go back to my car to find a decently sized puddle of oil under it.
I inspected my engine and discovered my oil pressure sender had started leaking. A lot.
I checked the dip stick which registered no oil, although there had to be some in there only because it was leaking out the sender when I pulled in.
Bought a new sender and 3 qts of 10w-40. Filled up. Didn't have any unusual sounds. No clunks, pings, or clanks. Just the typical diesel tick of my valves.
Drove home about 90mi with no notable misbehavior of the engine of loss of power. It felt fine.
Got home, examined the engine once more for leaks. It may seem a tad bit noiser, but I think thats just me over thinking because of todays events. It's nothing that sounds detrimental or worries me.
Anything I should be concerned about or does it sound like I got pretty lucky?
__________________ 1995 YJ
-3.5" Black Diamond Suspension Lift, Skyjacker Hydro 7000s
-1.25" Body Lift
-Trail-Gear Bumper and Tire Swing-Out
-31" BFG M/Ts KM Square Headlights Member #751
Just wait until it happens to you a second time, you will want to jam a bolt in the engine block just to do away with the potential engine destroying sending unit garbage. I switched to a mechanical gauge and will never go back to sending units..Period. Your only concern is catching on time the next time it happens.
Oh and if you bought your sending unit from Autozone, or equivalent for 30 something bucks, don't be surprised if the sending unit pops again within 3 months or so. (Ask me how I know). But don't worry, they have a lifetime warrentee that will replace that sending unit for free, even if you have to bolt it to a seized engine block, they will give you another sending unit with a smile.
If you are intent on retaining the sending unit, the only thing I might suggest is try to get one from a dealership, or a good quality one somewhere. I can mention however, I am seeing a trend of dealerships dealing in garbage parts now-a-days however. So good luck, hope this does not seem too cynical, I just have disdain for something that almost destroyed my engine, twice.
You are one of those guys who understands what it means to drive a YJ. You are careful and pay good attention to what is going on with your vehicle. I have driven vehicles that got low on oil, I knew it while driving because I hear noises and I watch gauges, sounds like you are the same way. I obviously can't say whether there was damage or not, but it sounds like you caught it at the right time and made the right decision to err on the side of caution, good job and I hope it all works out. You got it back safely, now time to check it out and see if there is any damage.
First Jeep was an 1989 YJ, 6 cylinder 4.2L , 258. Nuttered and TeamRushed, Weber 38 DGES, Now, I'm venturing into the world of Grand Cherokees
Sounds like you're fine to me. My mom has a '92 cherokee and I swear that thing runs on maybe 3 quarts or oil at any given time. Every time I check it I put about 3 quarts or more. Generally when it starts knocking a little that means it needs some more oil. Somehow it keeps running. The 4.0L is a tough motor and it can handle a lot of abuse but just keep an eye on it like you have. I have never let mine get as bad as bad as mom's but I'm a stickler for keeping my vehicles healthy.
Like said above, I'd give it a fresh oil change and call it good. As for the sending unit, I've never had a problem with my Autozone one but everyone has different experiences. Maybe I'm just one of the lucky ones.
Last time Iwas at the U-pull it I grabbed a couple of sender units and threw them in the tool box for instant on hand spares. I am pretty sure they are oem items not cheap crap. One has been working fine for 3 years todate.