Engine Controls - Basic Diagnostic Procedures - Gasoline: Overview Dodge Cab & Chassis R3500

Description

Possible causes are

1. Secondary Indicators Present
2. Powertrain Fuses Open
3. Fuel Pump Inlet Strainers Plugged
4. No Crankshaft Position (CKP) Sensor Signal When Cranking Engine
5. No Camshaft Position (CMP) Sensor Signal When Cranking Engine
6. Fuel Pump Ground Circuit Open
7. Fuel Pump Relay Output Circuit Open
8. Fuel Pump Module
9. Kinked Or Restricted Fuel Supply Line
10. CKP & CMP Sensors Out Of Synchronization
11. Fuel Filter/Pressure Regulator (High)
12. Fuel Pump Volume Out Of Specs
13. Engine Mechanical Problem
14. Fuel Contamination

Possible causes are

1. Engine Mechanical Problem
2. Transmission Range (TR) Sensor
3. Battery Circuit Resistance Too High
4. Ignition Switch Output Circuit Open
5. Starter Relay Control Circuit Open
6. Starter Relay Output Circuit Open
7. Fused Battery (+) Circuit Open
8. Faulty Starter
9. Faulty Starter Relay

Possible causes are

1. PCM Fused Battery (+) Circuit Open
2. Powertrain Control Module (PCM) Fused Ignition Switch Output Circuit Open
3. PCM Ground Circuits Open
4. Faulty PCM

Possible causes are

1. Fuel Pressure Out Of Specification
2. Fuel Pump Volume Out Of Specification
3. Throttle Position (TP) Sensor Sweep Out Of Range
4. Throttle Position Sensor Voltage More Than .92 Volt With Throttle Closed
5. Faulty Engine Coolant Temperature (ECT)
6. Restricted Fuel Supply Line
7. Fuel Pump Inlet Strainer Plugged
8. Faulty Fuel Pump Module