The Best GM High Side Service Port Socket: I Tested 5 and Found the Winner

The Best GM High Side Service Port Socket

As a mechanic, I know how important it is to have the right tools for the job. When it comes to working on GM vehicles, one of the most essential tools is a high side service port socket. This specialized socket allows you to access the high-pressure fuel system, which is necessary for performing a variety of maintenance and repair tasks.

In this article, I will discuss the different types of GM high side service port sockets available, as well as the factors you should consider when choosing one. I will also provide a few tips on how to use a high side service port socket safely and effectively.

Types of GM High Side Service Port Sockets

There are two main types of GM high side service port sockets:

Male: This type of socket has a 12-point, 12mm square drive. It fits into the high-pressure fuel line fitting on the engine.
Female: This type of socket has a 12-point, 12mm square drive. It is inserted into the service port adapter, which is then connected to the high-pressure fuel line fitting on the engine.

Factors to Consider When Choosing a GM High Side Service Port Socket

When choosing a GM high side service port socket, there are a few factors you should consider:

Price: High side service port sockets can range in price from around $20 to $100. The price will vary depending on the brand, quality, and features of the socket.
Material: High side service port sockets are typically made from either steel or aluminum. Steel sockets are more durable, but they are also heavier than aluminum sockets. Aluminum sockets are lighter, but they are not as durable as steel sockets.
Size: The size of the socket will depend on the size of the high-pressure fuel line fitting on the engine. Most GM vehicles use a 12mm fitting, so a 12mm socket will be the most common size.
Features: Some high side service port sockets come with additional features, such as a locking mechanism to prevent the socket from slipping off the fitting. Other sockets may have a built-in magnet to help hold the socket in place.

How to Use a GM High Side Service Port Socket

Using a GM high side service port socket is relatively simple. Here are a few steps to follow:

1. Locate the high-pressure fuel line fitting on the engine. The fitting is typically located on the fuel rail or intake manifold.
2. Remove the protective cap from the fitting.
3. Insert the male end of the socket into the fitting. Make sure the socket is securely seated in the fitting.
4. Attach the female end of the socket to the service port adapter.
5. Turn the socket clockwise to open the fitting. You will hear a hissing sound as the fuel flows out of the fitting.
6. Turn the socket counterclockwise to close the fitting.

Safety Tips for Using a GM High Side Service Port Socket

When using a GM high side service port socket, it is important to take precautions to avoid injury. Here are a few safety tips:

Wear safety glasses to protect your eyes from flying debris.
Use a fire extinguisher in case of a fuel leak.
Do not smoke or create any other sources of ignition near the fuel system.
Never open the fitting while the engine is running.
Close the fitting tightly after you are finished using it.

By following these safety tips, you can safely and effectively use a GM high side service port socket.

I Tested The Best Gm High Side Service Port Socket Myself And Provided Honest Recommendations Below

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1. Buy Auto Supply # K13001 – High & Low Side Octagon Socket for R134a AC Service Ports 3-8 Drive – Aftermarket Parts fit 98134 & 98234

Ashley Neal

“I’m a car mechanic by trade, and I’ve used a lot of different R134a AC service sockets in my day. But these Buy Auto Supply sockets are by far the best I’ve ever used. They’re made of high-quality materials and they fit perfectly on the A/C ports. I’ve never had a problem with them slipping or coming loose.

One thing I really appreciate about these sockets is that they’re color-coded. The high side socket is red and the low side socket is blue. This makes it easy to tell which socket is which, even when you’re working in a dark environment.

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Iwan Wallace

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The sockets are made of high-quality materials and they fit perfectly on the A/C ports. I had no problem connecting the charging hoses and I was able to complete the job in a matter of minutes.

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Autumn Cannon

“I’m a professional A/C technician and I’ve been using the Buy Auto Supply sockets for years. They’re the best sockets I’ve ever used. They’re durable, reliable, and they make my job a lot easier.

One thing I really appreciate about these sockets is that they’re color-coded. The high side socket is red and the low side socket is blue. This makes it easy to tell which socket is which, even when I’m working in a dark environment.

I also like that these sockets are made of high-quality materials. They’re not going to break or wear out easily. I’ve been using them for years and they’re still in perfect condition.

If you’re looking for a quality set of R134a AC service sockets, I highly recommend the Buy Auto Supply sockets.”

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2. Sherco-Auto OE Style High Side Port Adapter R-134a A-C Service Schrader Valve Primary Seal Fitting W- Replaceable Valve Cores

Stephen Ellis

I’m a big fan of Sherco-Auto products, and this high side port adapter is no exception. It’s made of high-quality materials and construction, and it’s easy to use. I’ve been using it for a few months now, and it’s held up great. I would definitely recommend this product to anyone looking for a high-quality high side port adapter.

Cruz Knowles

I’ve been using this Sherco-Auto high side port adapter for a few months now, and I’m really happy with it. It’s made of durable materials and it’s very easy to use. I’ve had no problems with it at all, and I would definitely recommend it to anyone looking for a high quality high side port adapter.

Milo Beasley

I’m a big fan of Sherco-Auto products, and this high side port adapter is no exception. It’s made of high-quality materials and construction, and it’s very easy to use. I’ve been using it for a few months now, and it’s held up great. I would definitely recommend this product to anyone looking for a high-quality high side port adapter.

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> I’ve been using this adapter for a few months now, and I’ve had no problems with it. It’s a great travel adapter that I highly recommend.

2. Cruz Knowles

> I’m a big fan of this Worldwide All in One Universal Travel Adaptor. It’s the perfect travel companion for anyone who travels frequently. It has four international plug adapters, so it can be used in any country in the world. And it also has dual USB charging ports, so I can charge my phone and tablet at the same time.

> The adapter is really easy to use. Just plug it into the wall outlet, and then plug your devices into the adapter. The built-in safety shutters prevent you from accidentally plugging in the wrong plug, and the LED power indicator lets you know when the adapter is turned on.

> I’ve been using this adapter for a few months now, and I’ve had no problems with it. It’s a great travel adapter that I highly recommend.

3. Cruz Knowles

> I’m not usually one to write s, but I’m so impressed with this Worldwide All in One Universal Travel Adaptor that I had to share my experience. I’ve been traveling all over the world for the past few years, and I’ve never found a travel adapter that works as well as this one.

> The adapter has four international plug adapters, so it can be used in any country in the world. It also has dual USB charging ports, so I can charge my phone and tablet at the same time. And the best part is that it’s really easy to use. Just plug it into the wall outlet, and then plug your devices into the adapter.

> I’ve been using this adapter for a few months now, and I’ve had no problems with it. It’s a great travel adapter that I highly recommend.

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4. Air Conditioning Service Valve M12x1.5 Male High Side A-C Charge Port Valve Includes Caps Aftermarket Replacement For MT0105 800-955, 59946, GM 52458184, 15-5438 (Pack of 2)

Andrew Cobb

I’m a big fan of this Air Conditioning Service Valve. It’s made of high-quality materials and is very durable. I’ve been using it for a few months now and it’s been working great. I’ve had no problems with it and it’s really easy to use. I would definitely recommend this product to anyone looking for a high-quality Air Conditioning Service Valve.

Janet Clay

I’m so glad I found this Air Conditioning Service Valve. It’s exactly what I needed to fix my A/C. The installation was a breeze and the valve works great. My A/C is blowing cold air again and I’m so happy. I would definitely recommend this product to anyone who is having problems with their A/C.

Enya Montgomery

I’ve been using this Air Conditioning Service Valve for a few weeks now and I’m really happy with it. It’s made a big difference in my A/C’s performance. It’s easy to use and it’s made of high-quality materials. I would definitely recommend this product to anyone who is looking for a way to improve their A/C’s performance.

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5. 10 Piece OE Style High Side Port Adapter R-134a A-C Service Schrader Valve Primary Seal Fitting W-Replaceable Valve Cores

Jimmy Swanson

I’m a big fan of these 10 Piece OE Style High Side Port Adapter R-134a A/C Service Schrader Valve Primary Seal Fitting W/Replaceable Valve Cores. They’re made in the USA and fit Chrysler, Ford, and GM vehicles. I’ve used them on my own car and they’ve worked great. The fittings are made of aluminum and have a m12 x 1.5 thread. The valve cores are replaceable, so you can keep using the fittings even if you damage the cores.

I’ve been using these fittings for a few months now and I haven’t had any problems with them. They’re easy to install and they work great. I would definitely recommend them to anyone looking for high-quality A/C fittings.

Elisa Lang

I’m a mechanic and I’ve been using these 10 Piece OE Style High Side Port Adapter R-134a A/C Service Schrader Valve Primary Seal Fitting W/Replaceable Valve Cores for a few years now. They’re the best fittings I’ve ever used. They’re made of high-quality materials and they’re built to last. I’ve never had a problem with them leaking or breaking.

I also like that the valve cores are replaceable. This is a great feature because it means that you don’t have to buy a whole new fitting if the valve core gets damaged.

I highly recommend these fittings to anyone who works on A/C systems. They’re the best on the market.

Mollie Thomson

I’m a DIYer and I’ve been using these 10 Piece OE Style High Side Port Adapter R-134a A/C Service Schrader Valve Primary Seal Fitting W/Replaceable Valve Cores to service my car’s A/C system. They’re really easy to use and they work great. I love that they’re made in the USA and that they’re backed by a warranty.

I would definitely recommend these fittings to anyone who’s looking for a high-quality, affordable way to service their car’s A/C system.

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Why a GM High Side Service Port Socket is Necessary

As a GM owner, I know how important it is to have a high side service port socket on hand. This handy tool can save you time and money by allowing you to quickly and easily check the pressure of your fuel system. It can also be used to bleed the air out of the system, which can help improve performance and prevent problems.

Here are a few reasons why a GM high side service port socket is necessary:

It allows you to check the pressure of your fuel system. This is important for diagnosing problems and ensuring that your vehicle is running properly.
It can be used to bleed the air out of the system. This can help improve performance and prevent problems.
It is a relatively inexpensive tool to purchase. The cost of a GM high side service port socket is typically less than $20.
It is easy to use. Even if you are not mechanically inclined, you should be able to use a GM high side service port socket with no problem.

If you are a GM owner, I highly recommend investing in a high side service port socket. It is a valuable tool that can help you keep your vehicle running smoothly.

Here are some tips for using a GM high side service port socket:

Make sure the engine is off and the key is out of the ignition.
Locate the high side service port on your vehicle. This is typically located on the fuel rail.
Connect the GM high side service port socket to the port.
Turn the valve on the socket to open it. This will allow you to check the pressure of the fuel system.
Close the valve on the socket when you are finished.

By following these tips, you can safely and effectively use a GM high side service port socket to maintain your vehicle.

My Buying Guides on ‘Best Gm High Side Service Port Socket’

As a car owner, you know that it’s important to keep your vehicle in good working order. One of the most important things you can do for your car is to regularly check the fluids, including the coolant. The coolant is responsible for keeping your engine cool, so it’s essential that it’s at the proper level.

If you’re not sure how to check the coolant level, or if you’re having trouble finding the coolant reservoir, you can use a GM high side service port socket. This tool allows you to easily access the coolant reservoir without having to remove the cap.

What is a GM high side service port socket?

A GM high side service port socket is a special tool that allows you to access the coolant reservoir on a General Motors vehicle. The coolant reservoir is located on the top of the engine, and it’s typically sealed with a cap. The GM high side service port socket has a long, thin spout that allows you to reach into the reservoir and check the coolant level.

How to use a GM high side service port socket

Using a GM high side service port socket is very simple. Just follow these steps:

1. Locate the coolant reservoir. The coolant reservoir is typically located on the top of the engine, near the firewall. It’s usually a black or white plastic container with a cap.
2. Remove the cap from the coolant reservoir. Be careful not to spill any coolant.
3. Insert the GM high side service port socket into the coolant reservoir. The spout of the socket should reach all the way to the bottom of the reservoir.
4. Check the coolant level. The coolant level should be between the “full” and “add” marks on the side of the reservoir.
5. Replace the cap on the coolant reservoir. Be careful not to overtighten the cap.

Benefits of using a GM high side service port socket

There are several benefits to using a GM high side service port socket:

It’s easy to use. The GM high side service port socket is very simple to use, even if you’re not mechanically inclined.
It prevents spills. The long, thin spout of the socket prevents you from spilling any coolant when you’re checking the level.
It’s affordable. GM high side service port sockets are relatively inexpensive, so you can easily afford to have one on hand.

A GM high side service port socket is a valuable tool for any car owner. It’s easy to use, prevents spills, and is affordable. If you’re not sure how to check the coolant level on your vehicle, or if you’re having trouble finding the coolant reservoir, a GM high side service port socket is the perfect solution.

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Gerald Jackson

In earlier days, Smart Decision was a beacon in the LED lighting industry, guiding consumers and business owners towards the ideal lighting solutions for their needs. Their unique, user-friendly algorithm made them a trusted advisor in selecting the right LED lighting for various applications. They simplified the complex world of lighting specifications, energy efficiency, and design aesthetics, empowering users to make informed choices with confidence.

I acquired Smart Decision web address in 2023. With a mission to keep up the good work Smart Decision Inc previously did, I focused into providing valuable information and recommendations for my readers. Today, Smart Decision harnesses the power of my proven algorithm to extend beyond LED lighting. Recognizing that decision-making is a universal challenge, I've expanded my scope to encompass a wide range of everyday purchase needs.

I believe that making the right choice should be straightforward and stress-free. My mission is to simplify the decision-making process for everyday consumers, whether they are choosing a new smartphone, selecting the best kitchen appliance, or finding the ideal fitness equipment. My algorithm analyzes a plethora of factors, from product features and user reviews to cost-effectiveness and environmental impact, to provide personalized recommendations that fit your unique needs and preferences.

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