How to Remove and Install the 2018 Ram 2500 6.7L Cummins Intake Manifold?

Alright, let's get down to business with swapping out that intake manifold on your 2018 Ram 2500 with the 6.7L Cummins. You know, that beast of an engine?

It's a workhorse, but sometimes it needs a little TLC, or maybe you're just looking for a performance boost with a new 6.7 Cummins intake horn.

Either way, this guide's got you covered, especially if you're looking for a 6.7 Cummins intake horn upgrade.

Why Bother with the Intake Manifold and 6.7 Cummins Intake Horn?

Over time, those manifolds and your stock 6.7 Cummins intake horn can get gunked up with carbon, or maybe you're just after better airflow for more power and efficiency.

 Whether it's for regular maintenance or a performance upgrade with an aftermarket 6.7 Cummins intake horn, knowing how to do this yourself is super handy.

If you're hunting for a solid Cummins intake manifold removal guide or thinking about a Cummins intake manifold upgrade and a 6.7 Cummins intake horn replacement, you're in the right place.

Getting Ready

Before you dive in, make sure you've got all your tools lined up and you're taking the right safety steps.

What You'll Need:

• A socket wrench set (10mm, 13mm, 15mm)
• An Allen wrench set
• A flathead and Phillips screwdriver
• A torque wrench
• Hose clamp pliers
• A container to catch coolant
• Cleaning cloths and solvent
• Possibly a new 6.7 Cummins intake horn if you're upgrading

Safety First:

• Let that engine cool down completely. You don't want to get burned.
• Disconnect the negative battery terminal. This stops any accidental electrical stuff.
• Wear gloves and safety goggles. You don't want fuel or anything else getting on your skin or in your eyes.

Taking the Old Manifold and 6.7 Cummins Intake Horn Out

1. Stripping It Down:

• Pop the hood and take off that plastic engine cover.
• Disconnect all the sensor plugs hooked up to the manifold and your 6.7 Cummins intake horn.
• Loosen the intake pipe clamps with a screwdriver and pull the pipe off.
• Remove the EGR system pipes.
• If you're replacing the 6.7 Cummins intake horn, now's the time to remove it as well.
• This is the stuff you gotta do if you're looking for DIY Cummins intake manifold replacement or trying to figure out how to pull the manifold and 6.7 Cummins intake horn off your 2018 Ram 2500 without paying a mechanic.

2. Fuel System Stuff:

• Release the fuel pressure first. You don't want fuel spraying everywhere.
• Use a socket wrench to take off the fuel rail and all the injector bits.

3. Pulling the Manifold:

• Find those manifold mounting bolts. They're usually spread out around the manifold.
• Use the right socket wrench to loosen and remove the bolts. Go in a diagonal pattern.
• Give the manifold a gentle wiggle and lift it off. Be careful not to mess up the gasket.
• Check that gasket for any damage. If it's beat up, replace it.
• If you're worried about engine trouble, knowing the signs of a bad intake manifold on a 6.7 Cummins can tell you if you need a new one.

Putting in the SPELAB Manifold and Upgraded 6.7 Cummins Intake Horn

The SPELAB manifold's got a better design, with more intake space, a top cover that fits the EGR plate better, and a 45-degree sensor connector for better airflow. It's a sweet upgrade if you're after the best intake manifold for your 6.7 Cummins, especially when paired with an upgraded 6.7 Cummins intake horn.

1. Getting It Ready:

• Put the new gasket in place on the manifold mounting spot.
• Make sure all the ports and holes line up with the engine.
• If installing a new 6.7 Cummins intake horn, make sure it's prepped and ready.
• Use a torque wrench to tighten the manifold bolts to what the manufacturer says.

2. Hooking Everything Up:

• The 45-Degree Sensor Connector:
  • Grab the sensor harness that came with the SPELAB manifold.
  • Plug the sensor into the 45-degree connector on the manifold's front. Make sure it's snug.
  • Use zip ties to keep the harness away from hot parts.
• EGR Plate and Other Stuff:
  • Bolt on the SPELAB EGR plate with the bolts they gave you.
  • Make sure it's sealed up tight.
• Fuel and Intake:
  • Hook the fuel rail back up and tighten all the fuel line connections.
  • Put the intake pipe back on and tighten all the clamps.
  • Double check all the rubber hoses and gaskets, you dont want any air leaks.
  • Install your new 6.7 Cummins intake horn, making sure it's properly aligned and secured.
• This stuff's key if you're looking for a SPELAB intake manifold installation guide or trying to figure out what tools you need for Cummins intake manifold removal and 6.7 Cummins intake horn installation.

3. Putting It All Back Together:

• Put the EGR pipes and intake hoses back on.
• Make sure all the hoses and cables are where they should be, and not near anything hot.
• Put the engine cover back on and check all the connections.

4. Firing It Up:

• Hook the battery back up.
• Start the engine and check for leaks or anything weird.
• Use an OBD tool to check for fault codes. If anything pops up, double-check your work.

Important Stuff to Remember:

• Don't force anything. If something's stuck, double-check that you've taken all the bolts out.
• Use a new gasket. It'll keep things sealed up tight and stop air leaks.
• Check the EGR parts. If they're caked with carbon, clean or replace them.
• Make sure all the connectors are locked in place. You don't want any engine problems.
• Ensure your new 6.7 Cummins intake horn is properly secured.

Wrapping It Up

Putting in the SPELAB intake manifold and an upgraded 6.7 Cummins intake horn is a great way to boost your 6.7L Cummins's intake efficiency, improve airflow, and cut down on intake resistance.

That means better performance and fuel economy. Whether you're doing a step-by-step Cummins intake manifold removal and 6.7 Cummins intake horn replacement or upgrading for better airflow, this guide should make the job smooth. If you're not sure about anything, check the service manual or ask a pro.

FAQ

Q1: Why should I consider upgrading my 6.7 Cummins intake manifold/intake horn?

A1: Over time, stock components can get clogged with carbon deposits, hindering airflow and reducing engine efficiency. ¹ Upgrading to a high-flow intake manifold and an aftermarket 6.7 Cummins intake horn improves airflow, boosts horsepower and torque, and can even enhance fuel economy. It's a solid performance upgrade.

Q2: What tools do I need for a 6.7 Cummins intake manifold/intake horn replacement?

A2: You'll need a socket wrench set (10mm, 13mm, 15mm), an Allen wrench set, flathead and Phillips screwdrivers, a torque wrench, hose clamp pliers, a coolant collection container, cleaning cloths and solvent, and potentially a new 6.7 Cummins intake horn if you're upgrading.

Q3: Is it safe to do a 6.7 Cummins intake manifold removal and 6.7 Cummins intake horn installation myself, or should I hire a professional?

A3: If you're comfortable with basic mechanical work and have the right tools, it's doable. However, if you're unsure or uncomfortable working on your fuel system, it's best to consult a professional. Safety should always be your top priority.

Q4: What are the signs of a bad intake manifold or a need for a 6.7 Cummins intake horn upgrade?

A4: Signs include reduced engine performance, poor fuel economy, rough idling, and fault codes related to airflow or intake pressure. If your stock 6.7 Cummins intake horn is showing signs of wear or you're looking for a performance boost, consider an upgrade.

Q5: What are the key steps to ensure a successful 6.7 Cummins intake manifold and 6.7 Cummins intake horn installation?

A5: Key steps include disconnecting the battery, properly removing external components, releasing fuel pressure, carefully removing the old manifold and horn, using new gaskets, ensuring proper sensor connections, tightening bolts to the manufacturer's specifications, and thoroughly checking for leaks and fault codes after installation.