Dodge Nitro. Manual — part 686

Fig. 125: Identifying Tang, Notch, Mounting Bolts, Electrical Connector & MTV Assembly
Courtesy of CHRYSLER LLC

3. Carefully position the MTV assembly (5) straight rearward into the intake manifold. Align notch (2) on

MTV assembly to locating tang (1) on intake manifold.

4. Install mounting bolts (3).

5. Connect electrical connector (4).

SHORT RUNNER VALVE

REMOVAL

REMOVAL - 4.0L

2007 Dodge Nitro R/T

2007 ENGINE Fuel System - Nitro

Fig. 126: SRV (Short Runner Valve) & MTV (Manifold Tuning Valve)
Courtesy of CHRYSLER LLC

1. The SRV (Short Runner Valve) (1) is located on the right/front side of the intake manifold.

Fig. 127: Identifying SRV, Mounting Bolt, Electrical Connector & Intake Manifold Notches
Courtesy of CHRYSLER LLC

2. Disconnect electrical connector (3).

3. Remove SRV mounting bolts (1).

4. Carefully pull the SRV assembly (2) straight forward from the intake manifold.

INSTALLATION

2007 Dodge Nitro R/T

2007 ENGINE Fuel System - Nitro

INSTALLATION - 4.0L

Fig. 128: Positioning SRV (Short Runner Valve) Into Intake Manifold
Courtesy of CHRYSLER LLC

1. Position SRV (Short Runner Valve) into intake manifold. Align SRV shaft into notch (2).

Fig. 129: Identifying SRV, Mounting Bolt, Electrical Connector & Intake Manifold Notches
Courtesy of CHRYSLER LLC

2. Rotate SRV assembly until aligned to intake manifold notches (4) and (5).

3. Install SRV mounting bolts (1).

4. Connect electrical connector (3).

2007 Dodge Nitro R/T

2007 ENGINE Fuel System - Nitro

FUEL INJECTION - 2.8L DIESEL

OPERATION

SYSTEM DIAGNOSIS

OPERATION

A leaking fuel injector can cause excessive pre-ignition knock, poor engine performance, excessive black
smoke in the exhaust, poor fuel economy and rough engine idle. If the fuel injector needle valve does not
operate properly, the engine may misfire and produce low power.

The Fuel Injection System is controlled by the Engine Control Module (ECM). If the ECM senses a fault in a
monitored fuel system circuit, the ECM will store a Diagnostic Trouble Code (DTC), which can retrieved with a
Scan Tool. The On-Board Diagnostic functions of the ECM must be used to test the system when diagnosing
mechanical or electrical problems with the Fuel Injection System. In addition to diagnosing electrical faults, the
Scan Tool has the following functions to test the mechanical operation of the injectors:

Compression Test

Fuel Correction Test

Balance Test

Kill Test

For Fuel System DTC information see refer to the appropriate Diagnostic Tests in DIAGNOSTIC CODE
INDEX .

SENSOR-ACCELERATOR PEDAL POSITION

REMOVAL

ACCELERATOR PEDAL - WITHOUT ACCELERATOR PEDAL POSITION SENSOR

2007 Dodge Nitro R/T

2007 ENGINE Fuel System - Nitro