RAM 3500 Truck 2WD L6-5.9L DSL Turbo VIN C (2003)
Perform the Pre-Diagnostic Troubleshooting Procedure before proceeding.
1.
Preliminary checks:
a.
Repair active DTC's before proceeding.
b.
Ensure the customer's concern is not related to situations which may increase normal white smoke; idle time, engine temperature, fuel
source, cold ambient temperature, high altitude.
2.
DTC / Product Improvement: Check for any service bulletins related to the customer's concern or Diagnostic Trouble Codes (DTC's) present.
Follow appropriate guidelines in the diagnostic procedures outlined in TechCONNECT. Is the vehicle repaired?
a.
Yes >> Go to Step # 14.
b.
No >> Go to Step # 3.
3.
Temperature sensors: Using the appropriate scan tool, before starting engine after an overnight soak, verify that the Intake Air Temperature (IAT),
Engine Coolant Temperature (ECT), Inlet Air Temperature, and the Battery Temperature sensors are showing similar and appropriate
temperatures. Are the sensors showing similar and appropriate temperatures?
a.
Yes >> Go to Step # 4.
b.
No >> Repair the appropriate sensor or circuit as necessary. Refer to the diagnostic procedures available in TechCONNECT under: Service
Info tab > 9 - Engine > Diagnosis & Testing. >> Go to Step # 14.
4.
Pressure sensors: Using the appropriate scan tool, before starting engine after an overnight soak, verify that the Intake Manifold Pressure and Inlet
Air Pressure sensors are showing similar and appropriate pressure. Are the sensors showing similar and appropriate pressures?
a.
Yes >> Go to Step # 5.
b.
No >> Repair the appropriate sensor or circuit as necessary. Refer to the diagnostic procedures available in TechCONNECT under: Service
Info tab > 9 - Engine > Diagnosis & Testing. >> Go to Step # 14.
NOTE:
The Inlet and Baro sensors will read in Inches of Mercury (Hg) while the Intake and Boost sensors will read Pounds per Square Inch (PSI). The
values displayed on the scan tool will not be the same, 2 in. Hg = 1 PSI.
5.
Fuel Rail Pressure sensor: Using the appropriate scan tool, before starting engine after an overnight soak, verify that the fuel rail pressure reads 0
(+/-500 PSI). Does the fuel rail pressure read 0 (+/-500 PSI)?
a.
Yes >> Go to Step # 6.
