The Complaint Was Not Consistent A diesel vehicle used for regional work in Argentina developed an unusual power-loss complaint. The engine could operate normally for a period, then suddenly lose power under acceleration. After the vehicle was stopped or the engine was switched off, normal ...

A Starting Complaint With No Clear Injector Pattern A diesel workshop in Turkey received a vehicle with intermittent hard starting. On some occasions the engine started normally, while at other times it required extended cranking before combustion began. Because rail pressure was available and the ...

A Warranty Claim Seemed Likely Shortly after a diesel injector was installed, fresh fuel appeared around the upper section of the unit. Because the component was new, the customer suspected an injector body leak and requested another replacement. Before processing the injector as defective, the ...

Two Numbers Appeared in the Product Material The customer requirement centered on 387-9437. However, the TD product material also displayed 387-9438. Instead of immediately describing 387-9438 as a replacement or interchangeable number, the order continued to use 387-9437 as the confirmed primary OE...

Initial Failure A diesel machine operating in a demanding construction environment developed abnormal fuel-system behavior and unstable engine performance. The injectors had already been replaced during an earlier repair. During subsequent inspection, metallic contamination was discovered again in ...

Customer Background A diesel repair workshop was dealing with an engine that continued to run unevenly after a set of common rail fuel injectors had already been replaced. The original complaint included unstable idle, noticeable engine vibration, and uneven combustion behavior. Because the ...

Tanzanian Agricultural Diesel Equipment Primes Normally by Hand but Loses Fuel Supply Under Load as Mechanical Lift-Pump Cam-Follower Stroke Is Investigated Case Background Agricultural diesel equipment operating in Tanzania developed gradual fuel starvation during sustained field work. When ...

Canadian Heavy Diesel Engine Develops Repeated Pre-Turbo Exhaust Leakage After Gasket Replacement as Manifold Stud Clamping and Flange Contact Are Investigated Case Background A heavy diesel engine operating in Canada developed repeated exhaust leakage at the manifold-to-cylinder-head interface. The ...

South African Wheeled Equipment Shows Weak Implement Hydraulics After Steering Events as Priority-Valve Spool Return Is Investigated Case Background Wheeled construction equipment operating in South Africa developed a hydraulic complaint linked directly to steering activity. Before steering, loader ...