Leaking oil pan gasket - Grand Marquis Mercury Cars & Trucks

Phil Lovisek

• 726 Answers
• Posted on Aug 03, 2008

SOURCE: 2000 Engine oil leak

most likely front cover o-ring. there is a small $4 dollar o ring behind the front engine cover, that leaks. Pretty common problem on your car.

SOURCE: Leaking oil pan gasket

Check the pan to make sure it is not cracked or warped. Also notice where most of the leak is coming from. When you took off the old gasket, did you scrape off all of the old material? If you used a screwdriver to do that, you may have nicked the metal and created a path for oil to leak. If you didn't scrape off the old material and any RTV sealant, you will want to, using a plastic scraper. There are sprays that dissolve this material too if it is too hard to scrape off.

If that area is nicked badly and you haven't used RTV sealant, you may want to put a small amount all over the area that the gasket will cover, not just the nicked area but the whole area that the pan gasket will cover- it doesn't take much and if you smear too much on, it will just ooze out and make things messy - just a fine coating will do.

As you tighten up the bolts, make sure you tighten in an alternating pattern as they begin to contact the gasket and get tight so a bolt on one side get fastened down as often as one on the other side gets fastened to avoid warping the pan.

Hope this helps.

SOURCE: change oil pan gasket

This Is A Fairly SIMPLE Procedure The IMPORTANT Thing is To Use Generous Amount of Sealant and Allow Plenty of TIME for Sealant to CURE After Pan is On and Tightened Over Night At Liest


REMOVAL

1. Disconnect negative cable from battery and remove engine oil dipstick.
2. Raise vehicle on hoist and drain engine oil.
3. Remove bending brace to transaxle attaching bolt.
4. Remove bolts attaching dust cover to transaxle housing. Lower dust cover to gain access to oil pan bolts.
5. Remove oil pan screws and remove oil pan.

1. Clean surfaces and apply a 1/8 inch bead of Mopar(R) Silicone Rubber Adhesive Sealant or equivalent, at the parting line of the chain case cover and the rear seal retainer.
   1. Use a new pan gasket.
   2. Install pan and tighten screws to 12 Nm (105 in. lbs.).
   3. Install dust shield and bending brace to transaxle housing.
   4. Lower vehicle and install oil dipstick.
   5. Connect negative cable to battery.
   6. Fill crankcase with oil to proper level.

SOURCE: oil leak repaired the oil pan gasket still leaking

good morning and welcome to fixya.

lets see if we cant get you some help here, you say you installed a new oil pan gasket and tightened all the bolts to spec. did you clean the mating surfaces completely and use a gasket sealer i.e high tack, gasket may have slipped when reinstalling could be on the end of pan, have you pin-pointed the spot where it is leaking from? you might run a dye test on it. could be leak coming from above running down disguising itself. not sure what steps you have already taken. if you could let me know so i can help you more. thank you again, and you and i will get you leak fixed

SOURCE: How to diagnose an oil pan leak

The ford ranger and the mazda b series have the same problem with oil leaking at the pan gasket. When you are under the truck, look on the side of the block between the pan and the block toward the middle of the pan and if you see oil gathering or running back then you have the pan leak. Look at the bottom of the trans bell housing to see if oil is gathering at the bottom. If so look at the side where the trans and block join and see if oil is leaving residue there If it is an auto you can remove the sheild and see if oil is inside the cover. Just a hint, If the rear main is leaking there will be oil all in the cover, if not then pan leak is main issue. Either way the trans may have to come out to pull pan back. Now I hav done the job many many times at the mazda dealer and never removed the pan. If you need more advice just ask