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Unread 05-13-2013, 07:58 AM   #1
homerx
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engine oil problem

Hi guys so I have a new problem that I can't seem to find any info on it starts around the time the its due for an oil change. I turn the truck on and drive to the gas station turn it off oump my gas and turn it back on and it says low oil. I let it sit and check it and oil is fine. Happens all the time till I do an oil change, and only if I turn it off and on in a short time span.

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Unread 05-13-2013, 08:41 AM   #2
speedbucket
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Could be the Vic but I would guess the oil level sensor on the passenger side of the pan just forward of the starter
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Unread 05-13-2013, 09:18 AM   #3
zjosh93
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What weight oil are you using? Mine did that when I ran 20w50 oil if I was even a little bit below the middle of the do not add oil range on the dipstick. It was thick enough that after a short trip the oil wouldn't all drain back into the pan before I'd restart it if I wasn't gone long. I'd get the "Check Engine Oil" warning. Now I run 15w40 Rotella and it only does that when I'm right at the lower mark of the correct range on the dip stick.

Start up your engine cold and let it run a minute. Shut it down and check the oil right away. I bet it reads low on the dipstick. I bet you have a small leak or are burning oil and when you change the oil you get enough oil to fix the problem until enough leaks out again.

If your oil is the correct thickness and your oil level isn't low you may have partially blocked oil drain back holes in your head.
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Unread 05-13-2013, 12:14 PM   #4
homerx
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I use 10w30 synthetic oil. And I out lucas oil stabilizer as well.
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Unread 05-13-2013, 12:17 PM   #5
homerx
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And ya I am burning oil that's y I use 10w30 and a very small rearman seal leak
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Unread 05-13-2013, 12:29 PM   #6
speedbucket
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Well then top it off from time to time. Mine gets low every 2 weeks or so. Heed the dummy light warning
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Unread 05-13-2013, 12:37 PM   #7
PolkaPower
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Maybe your plenum gasket is shot and you are burning oil.
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Unread 05-13-2013, 02:20 PM   #8
ratmonkey
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oil level sensors are notoriously unreliable. that's why they were only on 93's.

then we've got the guy running circle track race car oil. if you need 50wt to get any oil pressure, it's time to call it a day on that engine and get a rebuild.
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Unread 05-13-2013, 02:31 PM   #9
speedbucket
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Quote:
Originally Posted by PolkaPower View Post
Maybe your plenum gasket is shot and you are burning oil.
i know mine is, hughes kit and tune up sitting there collecting dust until i finish making my new suspension
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Originally Posted by ratmonkey View Post
oil level sensors are notoriously unreliable. that's why they were only on 93's.

then we've got the guy running circle track race car oil. if you need 50wt to get any oil pressure, it's time to call it a day on that engine and get a rebuild.
did not know it was only 93's, i have " '92 " stamps on alot of parts that came off my 93. i haven't even looked to see if you can get the replacement sensor. mine just may get a plug if it leaks anymore than it already is

i was gonna leave that alone, he can probably step it up to gear oil in a few months
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Unread 05-13-2013, 02:55 PM   #10
zjosh93
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Huh. My oil level sensor works perfectly. The VIC too. I get a low oil light, check it, and the oil level will be just at the bottom hatch.

Odd though, when I replaced the rear main seal I found an oil level sensor connector and wires clamped between the oil pan gasket and the block. My harness is fine, no weird splices or anything. Didn't even leak and everything *looked* factory. Of course it could have been a fifteen year old repair by the time I bought her.
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Unread 05-13-2013, 02:59 PM   #11
zjosh93
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Rockauto has the oil level sensor for about $35.
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Unread 05-13-2013, 03:11 PM   #12
KoreaZJ
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Quote:
Originally Posted by zjosh93 View Post
My oil level sensor works perfectly. The VIC too. I get a low oil light, check it, and the oil level will be just at the bottom hatch.
Same for my 94, sensor has always worked good. Does give a false warning when parked on a steep hill.
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Unread 05-14-2013, 04:06 AM   #13
homerx
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Ok well last I check all parts on a 93 are stamped 92 cause its built a year before.
I would stop at deisal oil and rebuild. Looks like I just have to top it off evey 3 months till it finally goes. Its a strong engine 200k. Or ill change the sensor and see what happeneds. Thanks guys.
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Unread 05-14-2013, 05:23 AM   #14
speedbucket
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Quote:
Originally Posted by homerx View Post
Ok well last I check all parts on a 93 are stamped 92 cause its built a year before.
I would stop at deisal oil and rebuild. Looks like I just have to top it off evey 3 months till it finally goes. Its a strong engine 200k. Or ill change the sensor and see what happeneds. Thanks guys.
That won't kill it anytime soon. Look into plenum repair and that thing will go to a long time. I just rolled 270k and the last 50k have been post lift/off road abuse and mines still strong. Just stick to 10-30
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Unread 05-14-2013, 09:12 AM   #15
zjosh93
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Most people using diesel oil are using it for the extra additive package not for added viscosity. I use Rotella 15w40 and it stays clean longer and quiets my lifters. 15w40 isn't any thicker than 10w40 when hot and 10w40 is recommended in my owners manual for hot climates like Texas.
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