The variable geometry turbocharger and the exhaust gas recirculation system are intimately related, with overlapping trouble codes. Depending upon its J 1587 addendum, flash code…
Category: Electronic Systems
Series 50 and 60 solenoid-actuated unit injectors are replaced as assemblies, using new seals, washers, and hold-down bolts. Disconnect the battery to protect the computer…
Now in its sixth generation, DDEC (Detroit Diesel Electronic Control or “dee-deck”) was the first EMS designed for heavy-duty diesels. Later versions follow European practice…
Sensors for mid-1994 to 1996 models are marked C96 or C 97; C-92 sensors were used from late-1997 to the end of production. These OEM…
Air leaks can cause rough idle, shutdowns on deceleration, and no-starts. The time required for air intrusion to make itself known depends upon the proximity…
Aeration often results in hard or no-starts, erratic idle, shutdowns on deceleration, and loss of rpm. CG4/SH oil helps control the problem. As originally specified,…
If you have not already done so, check the oil level in the pump reservoir, which should come to within an inch of the top…
A frequent complaint is a rough idle, which can originate from the fuel system or from one or more weak cylinders. Follow this procedure: 1.…
Begin with a walk-around the vehicle to determine that the tank is at least a third full, batteries are charged, battery terminals are clean and…
Four engines, three of them built by International, go by the name “Power Stroke.” The first was the direct injection turbocharged 7.3L V-8. This engine,…