Three Ways to Deal With a Leaking Oil Pan Bolt or Stripped Threads

Updated on January 24, 2019
eddiecarrara profile image

Eddie spent 35 years in the automotive business with Honda. He is an ASE Certified Master Technician and has bruised knuckles to prove it.

Every now and then, you will find a mechanic who thinks the oil drain bolt should be tightened with an impact gun. An oil pan is made from either stamped steel or aluminum, and either metal can be damaged if the oil drain bolt is over-tightened or cross-threaded. Stripping the threads in the pan can cause the oil to leak out around the bolt.

It's unfortunate when a customer comes in for a simple oil change and ends up walking out of the dealership with a bill for over $200. Usually a customer will never even know the oil pan or its bolt are damaged until the next visit to the garage, because if the mechanic who caused the problem tells you about it it makes him look like a bad mechanic.

Here are three options for dealing with a leaking oil drain bolt and damaged oil-pan threads.

Temporary rubber drain bolt
Temporary rubber drain bolt

Option 1: Use a Rubber Plug as a Temporary Repair

If you are in a tight spot and you don't have time to repair the threads in the oil pan, you could install an rubber drain plug for the oil pan. The rubber plug is used as a temporary fix, and it's not meant to be a permanent fix. There are several different styles; you just need to choose the correct one for your application. Once the rubber plug is installed, be sure to tug on it and push it to make sure it is installed correctly. Run the engine until it reaches normal operating temperature—that is, until the engine cooling fan cycles twice—and check for leaks.

Keep reading: options 2 and 3 give you peace of mind and they are permanent.

Option 2: Repairing the Oil Pan Threads With a Helicoil

Using a helicoil is one option for repairing threads. The helicoil is a hardened steel thread insert that comes in many different sizes and thread pitch. Repair with a helicoil is strong and permanent. I have used helicoils to repair head bolts without regret.

Option 3: Repairing the Oil Pan Threads With a TIME-SERT

The third and best option for repairing oil pan drain bolt threads is to use a drain bolt repair kit made by TIME-SERT. The kit comes with everything you need to produce a professional repair that will last for the life of the car—as long as nobody screws it up again.

A Time-Sert insert is similar to the helicoil, but is specially designed to repair damaged oil pans. The kit also comes with new oil drain bolts and sealing washers. This is a plus, and there is no need to try to match up the thread pitch or find the right diameter bolt to fit the pan after the repair.

How to Install the TIME-SERT Threads

Replacing Missing Threads on an Aluminum Oil Pan

If you are repairing aluminum oil pan drain bolt threads, no problem, TIME-SERT works extremely well during this application and the repair looks like it came from the factory. I have had to make at least 50 repairs on oil pans during my automotive career, and Time-Sert has been the best oil pan drain bolt repair kit on the market that I have used. The TIME-SERT kit is a bit expensive, but it doesn't compare to the cost of replacing the oil pan—or the cost of replacing the complete engine because you lost all the engine oil.

The cost of replacing an aluminum oil pan can easily exceed $500 for parts and labor. You need to remove the sub-frame on some vehicles to remove the oil pan and that alone can get costly. Using a Time-Sert repair kit will take about 30 minutes from start to finish with professional results.

If you have any questions leave them in the comment box below, and I will answer them as soon as possible. Thanks for stopping by.

This article is accurate and true to the best of the author’s knowledge. Content is for informational or entertainment purposes only and does not substitute for personal counsel or professional advice in business, financial, legal, or technical matters.

Questions & Answers

  • Would TIME SERT work on a 2002 Dodge Grand Caravan Sport?

    It will work on all aluminum oil pans. If the oil pan is steel, it's worth a shot. The also sell oil pan drain bolt replacement plugs that work pretty good.

  • Can the Time-Settings be installed into the oil pan of a 2006 Odyssey easily?

    Yes, you just need to make sure the tap goes in straight.

Comments

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    • eddiecarrara profile imageAUTHOR

      Eddie Carrara 

      7 weeks ago from New Hampshire

      Hi Ej,

      If the oil drain bolt was never over tightened or cross threaded, the drain bolt would never wear out. Your problem is most likely man-made and if you have your oil changed at the same shop consistently, they should fix your issue at no cost in my opinion.

    • profile image

      Ej 

      7 weeks ago

      The is the question can the oil pan screw wear out on it’s own because Honda telling me because the car is old 2009 with all the oil changes that can happen I told him Honda mechanics mess up my car

    • eddiecarrara profile imageAUTHOR

      Eddie Carrara 

      3 months ago from New Hampshire

      Hi Eleanor,

      If you have always brought to the same dealer and you have all records, most likely one of their mechanics made the mistake of cross threading or over tightening the drain bolt so be sure to let the dealer know your maintenance history, they just might own up to their mistake. Keep me posted, thanks.

    • profile image

      Eleanor 

      3 months ago

      Took my Lexus RX 350 for servicing to the dealer where I bought it and have had it regularly maintained and got the 'stripped bolt' story and an estimate for replacing the oil pan that is over $1K and will waste a full day of my time. I am going to talk to a local mechanic about the replacements you suggest as well as having a chat with the dealer. Thanks for the great advice. I'll keep you posted.

    • eddiecarrara profile imageAUTHOR

      Eddie Carrara 

      5 months ago from New Hampshire

      Hi Teresa,

      I had the same thing happened to a friend of mine and I told him to present the repair orders for all his oil changes that were done there and argue the point that they were the only mechanics that worked on his car and that one of their mechanics was the cause of the damage. The shop ended installing a new oil pan at no charge.

      I recommend you do the same and don't let them tell you that it's normal wear and tear, this is usually caused by either over tightening or cross threading the oil drain bolt. Keep me posted on what happens.

    • profile image

      Teresa 

      5 months ago

      I have a Honda Accord that has been leaking since my last oil change . I went for scheduled oil change today and was informed I have a temporary plug

      How could this have happened when they only service my car? And I am the only ever owner??? What should I do?

    • profile image

      Frank 

      23 months ago

      Can you use this on a steel oil pan? That is what I have on my Lexus.

    • eddiecarrara profile imageAUTHOR

      Eddie Carrara 

      2 years ago from New Hampshire

      Hi Sabrina,

      The first thing to do is find your receipt for the last oil change, plus they should have it in their records, but just let them know what NTB recommended, if you can get it in writing, it would be even better. Let me know if you have more questions, and keep me posted on what they say, thanks.

    • profile image

      Sabrina 

      2 years ago

      Just found out when I took my car in for an oil change that the last place who did my oil change put in a temp plug without telling me. It has been draining oil. NTB would not change my oil and said to take it back to the place who changed my oil last. What should I say to them and how do I get them to pay for whatever I need to be done to correct this problem?

    • profile image

      Hector Gonzalez 

      2 years ago

      Hi, I brought my 2007 Honda Accord to Jiffy Lube for an oil change years ago and then returned to another Jiffy Lube location for my following oil change and they refused to work on it because it had been sealed with silicone. They advised I take it back to the previous location, so I did but I was told that another location would fix the problem. Thus, I ended up at a third Jiffy Lube and they replaced the drain plug and they said all was fixed. When it came time for the following oil change, I brought it back to the same JL that "fixed" the problem. They said the drain plug that was put on was too small so they went ahead and rethreaded the oil pan. Now, all was really fixed supposedly, so when the next oil change came I decided to go to a closer JL and they said there is a small leak and they won't touch it because their records show a disclaimer that it had been rethreaded. So now I'm back at the location where the "repairs" were made. What should I demand from them? What do you recommend?

    • eddiecarrara profile imageAUTHOR

      Eddie Carrara 

      2 years ago from New Hampshire

      Hi Mark,

      No, you don't have to remove the pan, and the debris is minimal and can be flushed out by spraying brake clean in the oil pan and rinse it out. Let me know if you have more questions.

    • profile image

      Mark 

      2 years ago

      Can I do this without removing the oil pan? What about debris?

    • eddiecarrara profile imageAUTHOR

      Eddie Carrara 

      2 years ago from New Hampshire

      Hi Chuck,

      If you call an auto parts store, they should be able to give you that spec.

    • profile image

      Chuck 

      2 years ago

      Which Time-Sert metric thread repair kit would I need to repair a 2009 Mitsubishi Galant oil pan

    • profile image

      Robert C 

      2 years ago

      Have you heard of Eco Plug and do you recommend it?

    • profile image

      Katlin 

      2 years ago

      Thank you for this very helpful.

      Happened to me in my Chevy Cruze. $600 to replace the oil pan. Way better solution

    • eddiecarrara profile imageAUTHOR

      Eddie Carrara 

      6 years ago from New Hampshire

      Sure Mit, glad I could help :) If you have any question about installation, I'll be right here :)

    • profile image

      Mit1 

      6 years ago

      Appreciate it! Thank you so much!

    • eddiecarrara profile imageAUTHOR

      Eddie Carrara 

      6 years ago from New Hampshire

      Hi Mit,

      You would need the M14 x 1.50 metric, let me know if you have any other questions or if I can help in any other way, thanks.

    • profile image

      Mit1 

      6 years ago

      Which TIME-SERT Metric Thread Repair Kit would i need to

      repair 2001 Mitsubitshi Montero sport oil pan?

    • eddiecarrara profile imageAUTHOR

      Eddie Carrara 

      7 years ago from New Hampshire

      We see a lot of mechanics over tighten drain bolts, they are either in a hurry or they will use an impact gun, cross thread the drain bolt or just stretch the treads beyond repair. The best way to re install the drain bolt is by hand, and then tighten it a 1/4 turn to crush the aluminum washer. Thanks for taking the time to comment natures47friends, I really appreciate it.

    • natures47friend profile image

      natures47friend 

      7 years ago from Sunny Art Deco Napier, New Zealand.

      I never knew anyone would be silly enough to over tighten an oil drain plug unless they were a first timer or a kid learning. Great hub...up and interesting.

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