Question about 1993 Chevrolet Cavalier

2 Answers

I have an odd oil leak i my 93 chevy cavalier.

I have an odd oil leak in my 93 chevy cavalier. Basically when i first start it up, the car leaks oil (from what appears to be somewhere under the right side of the engine-if you're standing in front of the car looking under the hood-, but i can't find the source for certain yet). I'm fairly certain it's not the front or rear seals, I've pressure washed everything out and everything around them appears to be staying dry. The car will leak fairly profusely for about 2-3 minutes, and then just stop completely. After that, it won't leak while the car is warm and/or running, doesn't matter if you shut the engine off or not (I've shut it off and turned it back on several times with no result).
The dipstick in my car is also broken, and i discovered that because of this, i've been accidently over servicing it (meaning i've been keeping the oil at a higher level than what it should be). Is it possible that when the car starts it's getting rid of the excess oil, and after the level gets back to normal it will stop? It's still about half a quart over at this point.
Even if this little theory is correct though, the oil has to be coming out from somewhere...but why only when the car first starts??
I'd hugely appreciate any suggestions as to what is causing this. The car is old I realize, but it's all i have and i need to get this figured out. I'd appreciate any help immensely.

Posted by on

  • 2 more comments 
  • mewshari Sep 05, 2009

    The leak comes from underneath the motor for sure, if it was anywhere else I'm fairly certain I would have found it.
    I basically check the oil in the car every couple of days and before I leave for any long trips (It's an old car, and I try to be as vigilant with it as I can). I noticed it looked a little low before driving home to see my parents from New Hampshire (about a 3 hour drive) and I added, probably about half a quart before I left. That was about a week ago, and I haven't added anything since.

  • mewshari Sep 05, 2009

    Doesn't the oil pressure sending unit just measure the pressure and direct the pressure gauge? How would it be involved in an oil leak?

  • mewshari Sep 05, 2009

    The real kick in the head, is that the oil level isn't really decreasing by any major amount. I wonder if when the level reaches normal, it will just stop doing this??? I can't imagine what would make it leak only when the engine first starts up though. It's like clockwork, about 3 minutes or so goes by and the leak just stops and won't resume until I've shut the car off, let it cool down completely, and start it back up again. My pressure gauge remains stable, even when it is leaking.
    I'm just having a really hard time tracing the leak, it's like it's coming from the center somewhere, hard to find either from the top or bottom. I've been going nuts going through my book for the car trying to find possible causes, and I am totally stumped.

  • jason goddard May 11, 2010

    is the leak on top of motor on does it come from underneath? also do you over fill the engine everyday cause if you dont then it not puking out excess

×

2 Answers

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Governor:

    An expert whose answer got voted for 20 times.

    Hot-Shot:

    An expert who has answered 20 questions.

  • Expert
  • 113 Answers

Check your pcv valve for a clog or carbon build up

Posted on Sep 05, 2009

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Genius:

    An expert who has answered 1,000 questions.

  • Master
  • 1,055 Answers

Its the oil pressure sending unit!!!

Posted on Sep 05, 2009

  • Dennis Mulford
    Dennis Mulford Sep 05, 2009

    the top[ of the sending unit cracks and leaks under pressure

×

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

I have a 2002 Chevy Cavalier that is leaking oil and gets hot very fast. I replaced the valve cover thinking that was the problem but it turns out that is not it. What else could it be? It leaks reall


it could be a head gasket that is leaking. what you need to do is visually inspect to see where the leak is coming from. you may have to power wash the motor first and drive or run it then check to see where the oil is leaking.

Feb 13, 2015 | 2002 Chevrolet Cavalier

1 Answer

My oil pressure sensor started leaking oil through the plug.


pretty common same thing with my 2001 2 door chevy cavalier. its the valve cover gasket, you need to replace it.

Jan 28, 2013 | 2001 Chevrolet Cavalier

1 Answer

1994- Chevy Cavalier V6 3.1 engine - leaking oil problem. every 2 months I am replacing the oil because it leaks


it is probably the o-ring in your oil pump. I have the exact problem in my Cavalier. it is a little expensive to fix and I believe you practically have to pull the motor to replace it. Just keep oil in it and you might want to wash down the motor compartment area to cut down the oil spray areas. Don't use a cleaner that will make it too clean because with a motor that oil you may cause more leaks. Sometimes with an old motor you need the build-up around certain sealed parts to fill gaps because it is an older motor. I had that problem with my Old mustang may she RIP, i used a detergent oil because I was told to and it started leaking 3 - 4 qts. of oil weekly and didn't before I used the detergent oil.

Mar 11, 2012 | 1994 Chevrolet Cavalier

1 Answer

My 2005 Chevy Cavalier is severely leaking oil from a bolthole on the bottom of the oil pan. It is not the oil plug hole and there are a few holes like it without bolts in them but there is only one...


SOUND LIKE HOLE IN OIL PAN IF THE OIL PAN DRAIN PLUG NOT LOOSE OR MISSING AND THE UPPER PAN BOLTS HOLES NOT MISSING A BOLT CAUSE LEAKING.MORE LIKELY YOU HAVE HOLE IN THE OIL PAN.

Jul 21, 2011 | 2005 Chevrolet Cavalier

1 Answer

1996 cavalier bad oil leak when running


Overfilled is not good but it would have to be very high to cause leak,There are numerous places in rear of engine that could be leaking.could be leaking from rear of intake,the oilpump drive o ring,but most likly leaking from rear main seal that seals at the rear of the crankshaft and the transmission will need to come out to access this seal. you will need to have the oil leak diagnosed to locate the exact spot.

Feb 11, 2010 | 1996 Chevrolet Cavalier

1 Answer

My 2001 chevy cavalier has a oil leak and I can't


You can buy a florescent dye to add to the oil and a light to make the dye really shine.
Clean the engine with "brake clean" from a spray can at the oil leak areas ....then run the engine.
Check for the start location of the leak.
Start with a short run time ....... then longer run time if necessary until the leak(s) show.
With or with out the dye ......this brake cleaning method should help locate the leak(s).

Oil leak locations could be...in order of the most common on your car are........valve cover gasket,oil filter,oil pressure sending unit,drain plug,oil pan gasket,crank pickup sensor,rear seal.

Oct 14, 2009 | Chevrolet Cavalier Cars & Trucks

2 Answers

What oil does a 96 Chevy Cavalier need?


you can use 10w 30.if you live in a warm or hot climate.if you live in a colder climate.you use 5w -30 oil.

Jun 19, 2009 | 1996 Chevrolet Cavalier

1 Answer

93 Cavalier spraying lots of fuel.


what exactly is happening if you have a spark plug out of a cylinder you will get fuel out of it? is fuel leaking? are O-rings replaced and use silicone to lube them NOT OIL! oil destroys rubber O-rings.
even if there are wire problems you should not get fuel leaking anywhere. fix your fuel leak first. this can cause a vacuum problem and GMs dont like vacuum leaks.

Jan 11, 2009 | 1993 Chevrolet Cavalier

1 Answer

Oil leaks


First of all, which engine does your cavalier have? Some GM engines around that time had problems with the intake manifold gasket leaking oil where the manifold bolted to the top of the engine block, but if I remember correctly, it was in the 3.1 liter V-6 engines. If your car has a 4 cylinder engine, I am not aware of any inherent oil leak problems.
BTW, if your oil light has been on for 2 weeks, without your adding any oil, you probably have more serious problems than just an oil leak by now. Maybe not a solution, but it's a place to start.

Dec 16, 2008 | 1996 Chevrolet Cavalier

Not finding what you are looking for?
1993 Chevrolet Cavalier Logo

533 people viewed this question

Ask a Question

Usually answered in minutes!

Top Chevrolet Experts

yadayada
yadayada

Level 3 Expert

75797 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22114 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

8140 Answers

Are you a Chevrolet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...