Replacing a Broken Oil Bypass Valve in Dodge, Chrysler and Jeep 3.6 Liter Pentastar Engines

Updated on September 10, 2019
RayTheWrench profile image

Ray is an ASE Master Technician with over 30 years in the auto repair business.

If you have the 3.6L Pentastar engine, found in Chrysler, Dodge and Jeep vehicles, at some point you will have this issue. When you or your mechanic are changing the oil filter, you may look in the top of the housing and find a broken piece of plastic with a spring. Or you will hear the part pop out after the filter cap is removed. This part is called the oil filter bypass valve.

If you are at your local oil change place or automotive repair shop when you discover this valve is broken, most of them will tell you the vehicle cannot be moved. They will tell you you must change the entire oil cooler housing to correct this problem, which can cost up to $1000 depending on who quotes you. The dealer will only change the entire cooler, not the valve, since the part needed is only available aftermarket.

But the vehicle can actually be driven with this oil bypass valve broken or taken out.

The purpose of the oil bypass valve is to keep unfiltered oil flowing to vital engine parts even when the oil filter gets clogged. The valve bypasses the filter. You can put the filter back in without the bypass valve. This allows you to drive the car home and repair it yourself, or take it to a shop that will be honest and change only what you need.

I can let you know that at some point that your oil cooler housing will need replacing, because over time it will start to leak oil. The housing is plastic and loses shape over time from heat.

But if the valve is all you need right now, you can replace the broken oil bypass valve yourself at home with basic tools. You will spend about $17 for the valve and it takes 5 minutes to change.

Finding The Right Tools

You will need

  • a ratchet,
  • an extension,
  • and an oil filter socket or equivalent-sized socket.

Lisle Socket Set 13300
Lisle Socket Set 13300

Step 1. Removing the Engine Cover

Remove the engine cover. You can do this by pulling up on each of the four corners to release the cover from rubber grommets. Sometimes it takes a little force; don't be afraid to pull.

3.6L Pentastar Engine
3.6L Pentastar Engine

Step 2. Removing Oil Filter Cap

Remove the oil filter cap using or filter socket or equivalent sized socket. Have a drain bucket or something equivalent to put the filter in when you remove it. You will have some oil but not much.

Oil Filter Cap
Oil Filter Cap

Step 3: Removing a Broken Spring

Step Three:

Remove the spring. You can just reach down and grab it with your fingers.

But do not drop the spring down inside the cooler. If it falls into the wrong spot, you will have no choice but to remove the cooler. The spring is metal and can damage engine components.

To prevent this you can place paper towels or a rag around the inside of the housing.

Step 4. Removing Broken Plastic Pieces

Use a pick to pull out broken plastic pieces.

Be careful to not drop pieces down inside the housing. As I stated above, you can do this by placing paper towels or a rag around the inside of housing.

If you do get any pieces of plastic down in the oil cooler it won't be the end of the world. It was brittle plastic to begin with, and if it comes in contact with anything it will just crumble and eventually get caught in the filter or be drained out with the oil.

The Broken Bypass Valve

You'll end up with this.

The photo shows the broken valve above and the new one below.

This is the Replacement Part You Will Need

Dorman 917-992, oil filter bypass valve
Dorman 917-992, oil filter bypass valve

Step 5. Installing the New Valve

Install the new oil filter by-pass valve. The spring goes in first, then the plastic part, which has 4 tabs that lock it in place.

Step 6. Replacing the Oil Filter

Replace the filter and the o-ring on the filter cap, and torque the cap to 25nm or 18 ft-pounds.

If you don't have a torque wrench on hand, don't feel you need to tighten the cap super tight. If you do, it will be a pain to remove the cap at the next filter change. 18 ft-pounds is snug.

Step 7. Quality Control

Start the engine and check for leaks. Check the oil level and replace the engine cover. You're done!

Note: Dispose of your old filter and any oil properly in accordance with EPA laws. Meaning, don't throw it in your regular trash. Take it to a local shop, or some auto parts stores will take it.

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

    Comments

      0 of 8192 characters used
      Post Comment

      No comments yet.

      working

      This website uses cookies

      As a user in the EEA, your approval is needed on a few things. To provide a better website experience, axleaddict.com uses cookies (and other similar technologies) and may collect, process, and share personal data. Please choose which areas of our service you consent to our doing so.

      For more information on managing or withdrawing consents and how we handle data, visit our Privacy Policy at: https://axleaddict.com/privacy-policy#gdpr

      Show Details
      Necessary
      HubPages Device IDThis is used to identify particular browsers or devices when the access the service, and is used for security reasons.
      LoginThis is necessary to sign in to the HubPages Service.
      Google RecaptchaThis is used to prevent bots and spam. (Privacy Policy)
      AkismetThis is used to detect comment spam. (Privacy Policy)
      HubPages Google AnalyticsThis is used to provide data on traffic to our website, all personally identifyable data is anonymized. (Privacy Policy)
      HubPages Traffic PixelThis is used to collect data on traffic to articles and other pages on our site. Unless you are signed in to a HubPages account, all personally identifiable information is anonymized.
      Amazon Web ServicesThis is a cloud services platform that we used to host our service. (Privacy Policy)
      CloudflareThis is a cloud CDN service that we use to efficiently deliver files required for our service to operate such as javascript, cascading style sheets, images, and videos. (Privacy Policy)
      Google Hosted LibrariesJavascript software libraries such as jQuery are loaded at endpoints on the googleapis.com or gstatic.com domains, for performance and efficiency reasons. (Privacy Policy)
      Features
      Google Custom SearchThis is feature allows you to search the site. (Privacy Policy)
      Google MapsSome articles have Google Maps embedded in them. (Privacy Policy)
      Google ChartsThis is used to display charts and graphs on articles and the author center. (Privacy Policy)
      Google AdSense Host APIThis service allows you to sign up for or associate a Google AdSense account with HubPages, so that you can earn money from ads on your articles. No data is shared unless you engage with this feature. (Privacy Policy)
      Google YouTubeSome articles have YouTube videos embedded in them. (Privacy Policy)
      VimeoSome articles have Vimeo videos embedded in them. (Privacy Policy)
      PaypalThis is used for a registered author who enrolls in the HubPages Earnings program and requests to be paid via PayPal. No data is shared with Paypal unless you engage with this feature. (Privacy Policy)
      Facebook LoginYou can use this to streamline signing up for, or signing in to your Hubpages account. No data is shared with Facebook unless you engage with this feature. (Privacy Policy)
      MavenThis supports the Maven widget and search functionality. (Privacy Policy)
      Marketing
      Google AdSenseThis is an ad network. (Privacy Policy)
      Google DoubleClickGoogle provides ad serving technology and runs an ad network. (Privacy Policy)
      Index ExchangeThis is an ad network. (Privacy Policy)
      SovrnThis is an ad network. (Privacy Policy)
      Facebook AdsThis is an ad network. (Privacy Policy)
      Amazon Unified Ad MarketplaceThis is an ad network. (Privacy Policy)
      AppNexusThis is an ad network. (Privacy Policy)
      OpenxThis is an ad network. (Privacy Policy)
      Rubicon ProjectThis is an ad network. (Privacy Policy)
      TripleLiftThis is an ad network. (Privacy Policy)
      Say MediaWe partner with Say Media to deliver ad campaigns on our sites. (Privacy Policy)
      Remarketing PixelsWe may use remarketing pixels from advertising networks such as Google AdWords, Bing Ads, and Facebook in order to advertise the HubPages Service to people that have visited our sites.
      Conversion Tracking PixelsWe may use conversion tracking pixels from advertising networks such as Google AdWords, Bing Ads, and Facebook in order to identify when an advertisement has successfully resulted in the desired action, such as signing up for the HubPages Service or publishing an article on the HubPages Service.
      Statistics
      Author Google AnalyticsThis is used to provide traffic data and reports to the authors of articles on the HubPages Service. (Privacy Policy)
      ComscoreComScore is a media measurement and analytics company providing marketing data and analytics to enterprises, media and advertising agencies, and publishers. Non-consent will result in ComScore only processing obfuscated personal data. (Privacy Policy)
      Amazon Tracking PixelSome articles display amazon products as part of the Amazon Affiliate program, this pixel provides traffic statistics for those products (Privacy Policy)
      ClickscoThis is a data management platform studying reader behavior (Privacy Policy)