major oil leak

usmctd · Post by **usmctd** » Tue Dec 28, 2010 8:09 pm

Hey guys and and a few gals. I new to the org and I got a question

. I hav an 04 sxt with a big oil leak I cant seem to find

.
It is leaking externally can only be seen from underneath. I have replaced the oil pan gasket but with no sucess. I'm losing 3qrts between oil change. Leak does seem to be in lower motor area,not head gasket, hopefully. Is there a lot of this problem out there and what seems to be the common fix?

darthroush · Post by **darthroush** » Tue Dec 28, 2010 8:27 pm

Does the oil pressure light come on? The sensor can come loose and you will lose oil through that hole.

usmctd · Post by **usmctd** » Tue Dec 28, 2010 9:00 pm

no, no light indicators at all. Gonna get back under the car tonight and do some more looking.

Themaggots · Post by **Themaggots** » Tue Dec 28, 2010 9:32 pm

Do check the oil pressure sensor. Is the oil filter correctly tightened? The "gasket" on the oil drain plug is still good?

Post by **occasional demons** » Tue Dec 28, 2010 10:36 pm

The other one that seems to come from the rear, is the cam position sensor (CPS) the o ring tends to leak, and it flows around the bell housing area to the back of the engine. A new ring may fix it, if not, clean the sensor/mating surface with brake clean, and use a little silicone RTV in the o ring groove before re inserting it. You just need enough to just push out with the ring.

And do not crank the engine without the sensor in place. It is what holds the cam in alignment.

usmctd · Post by **usmctd** » Wed Dec 29, 2010 12:34 am

drain plug seals no problem, there are no visible leaks from the top of motor i.e. cam sens,valve cover, cam seal. Its not a little leak. oil filter is fine as well. Anyone know about oil pumps leaking? I have to clean the oil off when I get home fill it back up and then let it sit till morning and start looking again.

ZeroChad · Post by **ZeroChad** » Wed Dec 29, 2010 1:15 am

If the leak is coming from your oil pump area, it would probably be from the crank seal behind hit (given you've never removed the pump).

Next time you're under it, feel up the sides of the block and see how far up the oil moisture goes. It could be leaking from your cam sensor oring or headgasket too.

Post by **occasional demons** » Wed Dec 29, 2010 6:22 am

Also the cam seal at the gear end. That runs down by the oil pump. You won't see that, unless you pull the timing cover.

usmctd · Post by **usmctd** » Wed Dec 29, 2010 4:26 pm

I will have to check behind the timing cover this weekend. I'm also trying to play this up a little more to try and get a top end rebuild kit

darthroush · Post by **darthroush** » Wed Dec 29, 2010 5:32 pm

How's the oil pressure sensor?

usmctd · Post by **usmctd** » Thu Dec 30, 2010 4:20 am

ok. so got under the car and its actually pretty dry compared to what it was before the pan gasket.oil sens is dry as can be. i did find some oil near the pump and filter corner traced it back up the motor and it actually is the valve cover gasket.silly me! after talking with the wife i find its been more than 3000 miles since oil change so it really is a small leak and a 15 dollar repair. no top end rebuild after all. Thanks for all the pointers you guys are way cooler then neons.org guys they actually made me mad enough to sell my r/t.

Post by **occasional demons** » Thu Dec 30, 2010 7:24 am

usmctd wrote: neons.org guys they actually made me mad enough to sell my r/t.

usmctd · Post by **usmctd** » Thu Dec 30, 2010 4:29 pm

Ok so they really didnt make me sell my car but i was put out enough by the people on the org that i didnt want to be lumped in with that group.

Paul56 · Post by **Paul56** » Thu Dec 30, 2010 5:07 pm

usmctd wrote:ok. so got under the car and its actually pretty dry compared to what it was before the pan gasket.oil sens is dry as can be. i did find some oil near the pump and filter corner traced it back up the motor and it actually is the valve cover gasket.silly me! after talking with the wife i find its been more than 3000 miles since oil change so it really is a small leak and a 15 dollar repair. no top end rebuild after all. Thanks for all the pointers you guys are way cooler then neons.org guys they actually made me mad enough to sell my r/t.

Check in your spark plug tubes... if there is oil around the spark plug then this would be a good opportunity to remove the valve cover, re-seat the plug tubes and replace the gaskets.