nikki

Cleveland, OH

#1 Oct 4, 2008
My 95 neon started leaking oil. Now it's leaving a puddle the size of a dinner plate when I park at home. My dad looked under and said the iol pan was wet, but it was drippig from above.It only leaks after running. Could it be leaking that bad from a valve cover gasket and running down or is there something else in the rear of the engine that would leak that bad and run down?
nikki

Cleveland, OH

#2 Oct 4, 2008
need help!
Hellcat1988

Twin Valley, MN

#3 Oct 28, 2008
There are seals at both ends of the crank shaft that can leak. Usually it's the rear main that leaks. Clean off your oil pan and then put the car up on ramps and start it. Let it run for as long as it takes to see where the oil drips from. If it's from the front, you need to take off your crank shaft pulley and the harmonic balancer to fix it. If it's from the back, you need to take your engine out and oil pan off, then loosen the crank shaft bolts to replace it. Don't do it unless you have a torque wrench though or you could really mess up your engine.
don 69

Hudson, NY

#4 Jan 26, 2010
its the oil presher sensor
hellcat1988

Twin Valley, MN

#5 Jan 26, 2010
As Don said it could also be the oil pressure sensor as the resin inside of it tends to fail. I've also come across a problem with the cam shaft seal leaking. It can leak enough to COVER the back and side of the engine with oil just with short drives. You may want to check/replace that either way because christler has come out with a new harness connector and seal for it to solve the leak problem.
danny

Jersey City, NJ

#6 Jul 14, 2010
My 98 dodge neon leaks motor oil its. Soaked with oil on its side towards the firewall and also it leaks oil on top beneath the air tube there. Is a sensor there it leaks oil. Please help
hellcat1988

Twin Valley, MN

#7 Jul 14, 2010
It sounds like your valve cover gasket might be leaking. It could be that or you may have bad valve seals. Does the car smoke out the exhaust at all when you step on the pedal?(You may need to have someone step on the accelerator for you so you can see) If it's the valve cover seals then it'll be relatively cheap and easy to fix. If it's the valve seals, you'll need to have someone experienced replace them for you and it won't be as cheap. The best idea is for you to clean off the engine and run it to try and see where the oil is coming from. Also, you should replace the hoses coming off the valve cover if they're cracked and or leaking as they are vacuum hoses.
twitchphantom

Albuquerque, NM

#8 Jan 3, 2012
I have a 95 dodge neon sport that has a big oil leak from the valve cover gasket. I replaced the gasket with the rubber gromments attached and it chewed them up. I have also used rtv black to try make a silicone barrier. its still leaking oil, right below the ignition coil
hellcat1988

Ulen, MN

#9 Jan 4, 2012
twitchphantom wrote:
I have a 95 dodge neon sport that has a big oil leak from the valve cover gasket. I replaced the gasket with the rubber gromments attached and it chewed them up. I have also used rtv black to try make a silicone barrier. its still leaking oil, right below the ignition coil
It sounds like your engine might need a bit more then a new gasket. I'd take the valve cover off and check the gasket surfaces for damage. It sounds more like your p.c.v.(positive crank case ventilation valve) might be stuck. Both things should be checked. If the gasket surfaces are damaged, then it's best for you to just replace the valve cover with one from a junk yard.
Ants95neon

Roanoke, VA

#10 Oct 19, 2012
I have a 95 neon and every once in awhile it will start to smoke under the hood and its the oil burning and I noticed when I looked under the car towards the oil pan and it was leaking but when I moved my car back I it was dripping a good amount not a huge amount but when I go to start my car I noticed it would leak more my ? Is what would be causing the oil to leak like that and what do I need to look for I hope it's nothing to serous please help.
hellcat1988

Ulen, MN

#11 Oct 21, 2012
You need to track down where it's leaking from before you can fix it. Take a light and try to follow the oil path from the bottom of the engine to the top. Oil will flow with gravity, so you should be able to find where it's leaking from by looking for dry dirty oil, then following that down until you see wet oil. Until you know WHERE it's leaking from spesificly, there's really not a way to say "do this and the leak will stop" because there are 6 oil seals on the transmission side of the engine and at least 8 on the front of the engine including the ones in the oil pump.
oil leak from engine

United States

#12 Feb 2, 2013
My 1995 Plymouth Neon also has a engine oil leak that seems to be towards the back half of the engine compartment. I had a head gasket and water pump changed at the same time back in 2004. They used the improved steel head gasket to replace the old composite plastic polymer one. My car sometimes has a oil burning smell and the engine idles rough and vibrating. I am cheap and just add motor oil when the dip stick shows a 15% oil level drop every 2 months. I can't be cheap and environmentally concerned at the same time and place.
hellcat1988

Ulen, MN

#13 Feb 2, 2013
oil leak from engine wrote:
My 1995 Plymouth Neon also has a engine oil leak that seems to be towards the back half of the engine compartment. I had a head gasket and water pump changed at the same time back in 2004. They used the improved steel head gasket to replace the old composite plastic polymer one. My car sometimes has a oil burning smell and the engine idles rough and vibrating. I am cheap and just add motor oil when the dip stick shows a 15% oil level drop every 2 months. I can't be cheap and environmentally concerned at the same time and place.
Check your cam shaft position sensor. It's the biggest leak I've come across on the sohc engines so far. Short of that, the oil pump seals and the piston rings will usually be your biggest sources of oil leak. If it's leaking as slow as yours is, I'd check the tubes coming from the valve cover to the intake, as well as the inside of the throttle body. If you see oil in the tubes to the intake, it's most likely sucking it through due to vaccume. It could be old oil as well, so pulling the tubes while the car is running to check that it's not forcing oil out under pressure from the valve cover. If there's a large amount of oil in the intake behind the throttle body,(turn the throttle plate by hand and look in with a flash light) then it's probably either bad rings or bad valve seals. Don't mistake carbon deposits for oil though, as the pcv valve is more or less a strait shot from the exhaust side of the head to the intake manifold with nothing but a little plunger to keep it shut. Sometimes it'll stick and you'll get an error code from that. If all of those things check out, pull your spark plugs and make sure they look normal for how old they are. You should be able to do a google search to see images of a properly running engine's spark plugs. If they're fouled and sooted pretty bad, then the rough running is either something wrong with one of the sensors, or the rings or valve seals are leaking.
oldmac63

West Columbia, SC

#14 Mar 3, 2013
Doing some digging around myself on the 95 Neon pan gasket I have noticed that the design of the pan causes many to misdiagnose where the leak comes from.
Exploration has yielded that dodge extended the rear of the pan just under the rear seal. Hence, replacing a pan gasket may not catch the problem. But, if one takes a moment, uses a flashlight can peak between the dust cover in front of the flywheel plate (transmission front between engine and trans) and see if the front side of the plate is wet. If a spinning splatter is seen, likely the rear crankshaft seal is leaking. If the plate is dry, then there is a better chance of the culprit being just the pan gasket.
This diagnosis is only FIRST after looking higher up on the engine, as towards the back rear is the oil sensor. The sensor, if leaking will be washed, wet, and likely dripping while the motor is running. If the sensor is simply caked with dirt/grime it may be fine, which leads higher yet to either the rear cam sensor (big leak problem on 95's and quite easy to replace. Do not use RTV on the sensor as it will not withstand pressure (endurance) but use the correct O-Ring, which is why Dodge put them there. I found that the O-Ring has two found types (Black rubber/synthetic blue) the difference is a judgement call not yet determined. I have used both but did find that the black rubber seems to be holding up somewhat better.
As for what I read from others comments, the head gasket leaking oil is quite interesting... I will not comment since in that scenario if oil is seeping between the head and block, the repair would be extensive (warped beyond backyard mechanic repairs). that type of fix would require machine work, to correct warped blocks and heads.
Oil loss higher up on the engine from the rear side can exist, and the valve cover gasket, cam sensor (previous mentioned) or from the front of cam where the cam shaft exits to the timing gear are also probable issues to contend with. Please note, recently on the 95 (Single Over Head Cam) I had the privilege/pleasure of swapping out determined that Dodge did not USE replacement cam bearings, the head is a one-time deal. I ended up polishing the surfaces and putting in the replacement as-is, not quality work.
If your in doubt on where oil is leaking from on one of these small 4 cylinders, it is best to do some online searching to find solutions... But back up the information with some experience, recommend chatting at the local dealers, usually start at the parts department, where often tidbits of help will be found.
additive solutions

United States

#15 Mar 3, 2013
I did a youtube search for engine leaking problems and additive products like Liquid Steel, Rislone Block & Head Gasket Stop Leak, and engine oil stop leak could help. The Liquid Steel and Rislone has silicate that turns to glass after the particles plug up the leaks in the engine or gasket, from heat. Liquid Steel and Rislone is poured into the radiator and/or reserve coolant tank directly and circulates around the engine head to seal up the head gasket when heated up. The engine oil stop leak reconditions various seals and thicken up the motor oil.
neonowner

Hayward, CA

#17 Jan 12, 2014
My 95 neon had the same problem with smoke coming from underneath the hood whenever i would turn my car off. when I took it to a mechanic, he said the oil is burning because something was hitting against the manifold. i then took it to another mechanic who told me my thermostat was plugged up which was stopping water from travelling and because of that, my car was overheating. another problem was that my car was not holding any coolant fluid because there was a hole in my coolant tank. im going to repair the tank by putting glue over the hole and hopefully everything is fine after that.
mark

Columbus, OH

#18 Mar 23, 2014
I've got a 99 Plymouth neon espresso and it leaks oil on the back side of motor ive changed the valve pan gasket the oil pan gasket idk what else to do. It only leeks about a quart of oil every other week and my oil is clean and has no gunk in it plus ive had a mechanic look at it and he said it wasent my head gasket. It doesent smoke any and it really does run good so can anyone help me
The Accessories

Victoria, Canada

#19 Mar 23, 2014
mark wrote:
I've got a 99 Plymouth neon espresso and it leaks oil on the back side of motor ive changed the valve pan gasket the oil pan gasket idk what else to do. It only leeks about a quart of oil every other week and my oil is clean and has no gunk in it plus ive had a mechanic look at it and he said it wasent my head gasket. It doesent smoke any and it really does run good so can anyone help me
I tried that Rislone Head Gasket sealer and it seemed to work. There maybe other brands of similar product where you live. Ask at the auto parts stores. I poured the silicate liquid into the radiator and reserve coolant tank and it circulated around the engine to seal up the holes or microscopic cracks. The oil dipstick showed no lowering of oil levels. Go to youtube and look for Scotty Kilmer from Texas videos on car maintenance, especially the Liquid Steel video on oil leaks from the engine head.
stevie renteria

Lubbock, TX

#20 Nov 12, 2014
need help my transmission oil keeps leaking from my dodge neon 1998....i put transmission oil ND IT ONLY LAST LIKE FOR 10 mins!!!!! help please thanks

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