Engine vacuum diagrams

Here is a general vacuum hose and line placement diagram for a 2001 Dodge Ram 1500 4x4:

1. The vacuum line from the engine intake manifold should be connected to the vacuum reservoir tank.
2. The vacuum line from the vacuum reservoir tank should be connected to the vacuum actuator on the front axle.
3. The vacuum line from the vacuum actuator on the front axle should be connected to the transfer case.
4. The vacuum line from the transfer case should be connected to the vacuum actuator on the rear axle.
5. The vacuum line from the vacuum actuator on the rear axle should be connected to the vacuum reservoir tank.

It is important to note that the specific placement and routing of vacuum hoses and lines can vary depending on the make and model of your Dodge Ram 1500, as well as any modifications that may have been made to the vehicle. It is always recommended to refer to the manufacturer's instructions or a repair manual specific to your vehicle for accurate information. Additionally, it may be helpful to take pictures or label the hoses and lines before removing them to ensure proper reinstallation.

Matthew, Vacuum hose diagram should be under hood on a decal/label, on hood it self or on rad cradle usually. Check the attached links,instruction and guides, Good luck
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What are you saying is it broken or missing..
Their is a decail that covers the emmissions hose routing .
However there is always a trace of ware the hose was routed and connected look around the answers are their if you look at them fairly .

EBay about $8

its there you have to look for it with a mirror and a light the nipple that connects the vacuum is just under a bolt to the right of the abs wich barely sticks out of the finder

Check this diagram about (click over image for zoom)...



Fig. 2: Emissions system and engine control vacuum hose routing - Altima

Hope helps.

Not easy but doable. I would mark anything you aren't familiar with to get it back together right. Please let me know if you have any questions, and thanks for using FixYa.


IGNITION COIL REMOVAL & INSTALLATION
3.0L Engine

1. Remove the wiper arms
2. Remove the left and right side air inlet grilles
3. Remove the wiper motor.
4. Detach the power brake booster vacuum connection from the intake plenum.
5. Disconnect the spark plug wiring harness from the ignition coil.
6. Detach the electrical connection from the ignition coil.
7. Remove the bolts from the ignition coil, and remove the coil.

To install:

1. Installation is the reversal of the removal procedure.
2. Tighten the coil bolts to 71 inch lbs. 8 (Nm).
3. Tighten the power brake booster vacuum connection until snug.

valve cover removal & installation3.0L Engine
RIGHT

1. Disconnect the negative battery cable.
2. Remove the intake plenum and the intake manifold.
3. Remove the spark plug boots from the spark plugs, and then the wires from the routing retainers. Make sure they are tagged for proper installation.
4. Remove the rocker arm cover-to-cylinder screws, the cover, and the gasket/seals. Discard the seals.

NOTE Ensure all eight sealing O-rings are accounted for. They may stick to the camshaft bearing caps or fall into the oil return journals in the cylinder head.

Fig. The location of the valve cover O-rings is shown here

Fig. The valve cover sealant application points
To install:

1. Install new valve cover seals. Lightly coat the new seals, including O-rings, with engine oil prior to installation. The oil application will assist in holding the O-ring seals to the valve cover.
2. Apply a thin coat of silicone sealer at the front and back of the seals.
3. Install the valve cover to the cylinder head, and tighten the bolts to 71 inch lbs. (8 Nm).
4. Route the spark plug wires into the retainers, and install the plug boots to the spark plugs.
5. Replace the intake manifold and the intake plenum.
6. Connect the negative battery cable.

LEFT

1. Disconnect the negative battery cable.
2. Remove the intake plenum and the intake manifold.
3. Remove the spark plug boots from the spark plugs, and then the wires from the routing retainers. Make sure they are tagged for proper installation.
4. Remove the oil filler spout.
   1. Unlock the tab.
   2. Twist counterclockwise.
   
   
5. Remove the rocker arm cover-to-cylinder screws, the cover, and the gasket/seals. Discard the seals.

NOTE Ensure all eight sealing O-rings are accounted for. They may stick to the camshaft bearing caps or fall into the oil return journals in the cylinder head.
To install:

1. Install new valve cover seals. Lightly coat the new seals, including O-rings, with engine oil prior to installation. The oil application will assist in holding the O-ring seals to the valve cover.
2. Apply a thin coat of silicone sealer at the front and back of the seals.
3. Install the valve cover to the cylinder head, and tighten the bolts to 71 inch lbs. (8 Nm).
4. Install the oil filler spout.
   1. Insert the spout and twist clockwise.
   2. Ensure the locking tab seats on the valve cover bolt head.
   
   
5. Route the spark plug wires into the retainers, and install the plug boots to the spark plugs.
6. Replace the intake manifold and the intake plenum.
7. Connect the negative battery cable.

INTAKE MANIFOLD REMOVAL & INSTALLATION

3.0L Engine
This vehicle uses a sequential multiport fuel injected engine. Fuel injector connectors must be positioned onto their appropriate fuel injector or engine performance and exhaust emissions may be seriously affected. Fuel injector connectors are numbered to match their cylinders.

1. Remove the intake plenum.
2. Properly relieve the fuel system pressure.
3. Remove the fuel supply and fuel return hose from the fuel rail.
4. Fuel injector electrical harness connector.
5. Remove the intake manifold bolts and the intake manifold.

NOTE Mask off the ports to the intake manifold spacer. If foreign objects enter the engine, severe damage may result.
Clean the intake manifold sealing surfaces with a non-abrasive tool or solvent.
Do not damage machined aluminum surfaces or improper sealing may occur.

Fig. Location of the guide pins for the intake plenum-3.0L engine

Fig. Intake plenum-to-intake manifold mounting

Fig. The intake manifold bolt locations
To install:

1. Remove the masking from the intake ports.
2. Install the intake manifold, and tighten the intake bolts to 15 ft. lbs. (20 Nm), rotating the tightening sequence.
3. Reconnect the fuel injector electrical harness connector.
4. Couple the fuel supply and fuel return hose,. Tighten the connection to 11 ft. lbs. (15 Nm).

NOTE Counterhold the connections to prevent damage to the fuel rail.

1. Install the intake plenum.
2. Connect the negative battery cable.

answer , very carefully ...

drain coolant , remove and mark all vacuum lines , make a schematic to diagram your hose routing, disconnect and plug all fuel lines, remove distributor and mark location of rotor, disconnect battery, remove any necessary cables, brackets and or accesseries, remove intake mounting bolts, note length of bolts and reference location, pry up on intake , remove intake, scrape old gasket off , must be very clean to reinstall new gasket or you will cause a leak..

there maybe a sticker in the engine compartment that shows the vacume line routing or you can go to a dealer and they can print one for you.

Intake Manifold REMOVAL & INSTALLATION 1.9L SOHC Engine

1. Before servicing the vehicle, refer to the precautions in the beginning of this section.
2. Properly relieve the fuel system pressure.
3. Drain the coolant system.
4. Remove or disconnect the following:
   • Negative battery cable
   • Air cleaner fresh air hose
   • Positive Crankcase Ventilation (PCV) valve hose
   • Fuel line from the rail
   • Throttle cable from the throttle body
   • Throttle cable bracket nuts
   • Fuel injector electrical connectors
   • Throttle Position (TP) sensor electrical connectors
   • Idle Air Control (IAC) valve electrical connectors
   • Manifold Absolute Pressure (MAP) sensor electrical connectors
   • Exhaust Gas Recirculation (EGR) valve electrical connectors
   • Heater hose from the intake manifold outlet
5. Position the wiring harness over the brake master cylinder
6. Remove or disconnect the following:
   • Intake manifold support bracket bolt
   • Label the vacuum line for proper assembly
   • Drive belt
   • Power steering pump
   • Upper intake manifold bolts
   • Evaporative Emissions (EVAP) canister purge valve solenoid vacuum hose
   • Brake booster vacuum hose
   • Lower intake manifold bolts
   • Intake manifold
   To install:
   
7. Thoroughly clean all gasket mating surfaces. Be careful not to damage or score the aluminum surface. If replaced, use Loctite® 290, to seal the new PCV valve inlet tube into the manifold. NOTE: Refer to Section 1 of this manual for the intake manifold torque sequence illustration. The illustration is located after the Torque Specification Chart.
   
8. Install or connect the following:
   • New gasket and manifold. Torque the nuts in sequence to 22 ft. lbs. (30 Nm).
   • Power steering pump. Torque the fasteners to 27 ft. lbs. (38 Nm).
   • Drive belt.
   • Heater hose and install the manifold support bracket bolt. Tighten the bolt to 22 ft. lbs. (30 Nm).
   • Lubricate the male ends of the fuel lines with a few drops of clean engine oil, then connect the fuel supply and return lines.
   • Fuel line(s) in the retaining bracket. Torque the mounting screw to 36 inch lbs. (4 Nm).
   • Throttle cable to the throttle body and attach the accelerator cable bracket. Torque the bolts to 22 ft. lbs. (30 Nm).
   • Reposition the wiring harness and connect the wiring and vacuum hoses to their original locations. The harness leads to the TP sensor and EGR solenoid must be routed between the intake manifold runners.
   • Negative battery cable
9. Fill the coolant system.
10. Prime the fuel system by cycling the ignition ON for 5 seconds and OFF for 10 seconds a few times without cranking the engine.
11. Start the engine, check for leaks, and repair if necessary.