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Old 02-17-2018, 10:00 PM   #1  
Kevin Farrell
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Default Oil drain plug leak

I have a 94 gt I just did an oil change on last week and ever since the oil change Iíve been having oil drip out of the front plug. Replaced the plug today but itís still dripping oil. The plug is tight so I donít think itís stripped threads. Any suggestions? Will I have to replace the whole pan ?
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Old 02-17-2018, 11:57 PM   #2  
08'MustangDude
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I had a Charger where the oil drain plug leaked. Tight or not, it
leaked. So, every oil change, I would put some silicone in the
rear threads, about a 1/4" before the bolt head. Other cars, I have
used white Teflon tape, two complete wraps of the threads.

Even if there is a small crack anywhere near the plug, oil will leak out.

You can also try a 1/8" hard rubber washer between the nut head and
mating surface of the pan. I have done that plenty of times, and it works.
Can maybe use a crush washer too.

Some bolts come with this:




Those plugs are listed as is a ford replacement, with the washers.

Most are buying these:


That one has a rubber crush area on the bolt.

Some OEM bolts have that small raised rubber area on the bolt, and
it wears, and the oil leaks...


Once that has crushed too many times, it becomes useless.

Plenty of options out there for you.
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Old 02-19-2018, 09:03 AM   #3  
wbrockstar
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Its most likely just a worn rubber/plastic washer,like Mustang Dude mentioned .However if you replace the washer and find it still leaks and a subsequent inspection shows a crack in the pan,JB Weld can be used to seal the crack.I had to do this one time because the oil pan had made contact with the radiator support during the installation of a rebuilt stroker and the crack wasnt noticed until the engine was fired up.
When you pull the bolt back out to install a new washer,make sure the oil pan surface is level under the bolt head.IOW- scale/rust/etc can accumulate on the pan to where the bolt/washer wont sit flush against the pan,eventhough its tight.A quick pass with some sandpaper or a drill/wire brush will make it smooth again. Mustang Dudes recommendation of a magnetic drain plug is a good addition.
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Old 02-19-2018, 03:17 PM   #4  
08'MustangDude
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I used JB Water Weld on a pisser hole in the radiator, on a former '06 Jeep Liberty. Was
the upper LH side of the LH tank. Sanded the area around the hole, applied the JB Water
Weld and waited till the next day. Lasted 6 months that I know of, I traded it in on the '07
Charger, which I sold. Needed to at the time, was sad to see it go.
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Old 02-20-2018, 12:55 PM   #5  
Derf00
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Quote:
Originally Posted by 08'MustangDude View Post
I had a Charger where the oil drain plug leaked. Tight or not, it
leaked. So, every oil change, I would put some silicone in the
rear threads, about a 1/4" before the bolt head. Other cars, I have
used white Teflon tape, two complete wraps of the threads.

Even if there is a small crack anywhere near the plug, oil will leak out.

You can also try a 1/8" hard rubber washer between the nut head and
mating surface of the pan. I have done that plenty of times, and it works.
Can maybe use a crush washer too.

Some bolts come with this:




Those plugs are listed as is a ford replacement, with the washers.

Most are buying these:


That one has a rubber crush area on the bolt.

Some OEM bolts have that small raised rubber area on the bolt, and
it wears, and the oil leaks...


Once that has crushed too many times, it becomes useless.

Plenty of options out there for you.
I use this type of washer with a regular magnetic drain plug. Best of both worlds. No leaks. Just replace the washer as needed. This isn't for our vehicles specifically but is similar to what I use.

https://www.walmart.com/ip/VICTOR-GA...&wl13=&veh=sem
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