Hino 238 258LP 268 338 358 Conventional Truck Engine & DPF Troubleshooting Manual 2017 (J08E-VB J08E-WU)

Description

Hino Conventional Truck Engine and DPF Troubleshooting Manual – 2017 Edition

The Hino 238 258LP 268 338 358 Conventional Truck Engine & DPF Troubleshooting Manual 2017 (J08E-VB J08E-WU) is the diagnostic workshop volume Hino prepared for its U.S. and Canadian conventional truck range fitted with the J08E-VB and J08E-WU diesel engines. Instead of walking through component removal and rebuild, this manual answers the question that actually stops a truck in the workshop: the driver reports a symptom, and here is the exact sequence of checks that leads to the cause. Every major system – the common-rail fuel system, variable-nozzle turbocharger, exhaust brake, DPR aftertreatment, DEF-SCR dosing control unit, hydraulic and full-air brakes, steering, suspension and the CAN network – is presented as symptom-driven troubleshooting tables and step-by-step diagnostic trouble code (DTC) inspection flowcharts.

File Details

• Manual type: Engine and DPF Troubleshooting Workshop Manual (indexed under Trouble Shooting)
• Brand: Hino
• Models covered: HINO 238, 258LP, 268, 338, 358 series
• Engines covered: J08E-VB and J08E-WU
• Production codes: NE8J, NF8J, NJ8J, NV8J, NH8J
• Language: English
• File format: PDF
• Publication numbers shown: S7-UNAE13A 1/3 (U.S.A.), S7-CNAE13A 1/3 (Canada)
• Companion publications referenced: S1-UNAE13A 1/2 and 2/2 (Chassis), S5-UJ08E13A (J08E-VB/WU Engine), S7-UNAE13A 2/3 and 3/3 (Trouble Shooting)
• Print reference on final page: ‘15.11

Chapters Covered

• General Introduction (1-001) – general precautions, identification information including VIN label location, vehicle noise and emission control labels, engine serial number and chassis serial number locations, how to use the manual, sealant on tapered screw piping, metric fastener information, specified torque for standard bolts and nuts, specified torque for flange bolts and nuts, recommended lubricants, information display, glossary of SAE and Hino terms
• Trouble Shooting – Components (2-001) – engine assembly and common rail system, turbocharger (J08E), alternator (Remy 12V-130A, 135A, 180A, 200A), starter, air compressor, Eaton SAS1401 and SAS1402 clutch assemblies, automatic transmission, Eaton manual and Allison automatic transmission control units, propeller shaft (SPL 100, 140), Meritor RS-17/19/21/23 differential carrier, hydraulic brake and full-air brake service assemblies, wheel brake 4-piston type, Bendix AD-IS air dryer and reservoir system, exhaust brake, Bosch 12 parking brake, steering system, MFS front axle, rear axle, wheel and tire, leaf and air suspension, chassis frame, cab, air conditioning system and electrical equipment
• Trouble Shooting – Electrical Control System (3-001) – HINO DX II connection and setup, basic troubleshooting procedure, symptom confirmation and DTC retrieval, symptom simulation, DTC diagnostic inspection flowchart, electronic circuit inspection (open circuit, short circuit, connector handling and repair), inspection procedure for multiple DTCs
• Engine Control System J08E (4-001) – precautions for diagnosis, system block diagram, system diagram, sensor locations, computer (ECU) pin assignment, engine ECU connector removal and cleaning, diagnosis using the PC diagnostic tool, full diagnostic trouble code table, groups sharing sensor power supply and GND terminals, engine basic inspection sheet, no-DTC symptom charts, and dedicated inspection procedures for the entire DTC range from P0005 through the U1001 series
• DEF SCR System (DCU) (5-001)
• Brake Control System (9-001, 9-002) – ABS hydraulic (E version) and ABS full air
• Vehicle Control System (VCS) (11-001)
• CAN Communication (12-001)

The index on the opening pages also maps out which chapter numbers serve each production code and model, so you can go straight to the correct section for the truck in front of you. The General Introduction chapter alone is worth having on hand: it carries the torque tables for metric standard and flange bolts, the recommended lubricant and viscosity chart covering engine oil, transmission fluid, axle lubricant, power steering fluid, brake and clutch fluid, wheel bearing and chassis grease, and the rules for handling electronic parts, harnesses and connectors before you touch the ECU.

How the Engine and DPF Troubleshooting Content Is Structured

The bulk of the manual lives in two places. Chapter 2 breaks the vehicle down by component group and hands you a straightforward symptom / possible cause / action table for each one – engine overheating, excessive oil consumption, piston seizure, lack of power, exhaust leakage, difficulty starting, rough idling, diesel knock, unusual engine noise, clutch drag and slip, transmission shift complaints, differential noise, brake drag and squeal, steering shimmy and hard steering, tire wear and wheel hop, air suspension behaviour and A/C fault diagnosis. Each row tells you what to check and what to do about it, so a technician can work from the complaint to the repair without guessing.

Chapter 4 is the deeper diagnostic side and is written specifically for the J08E engine family. It opens with the system block diagram, sensor locations and a full ECU pin assignment, then moves into the DTC table that lists, for every code, the diagnosis item, the components to inspect and the page to turn to. The individual procedures that follow use a consistent format: technical description, DTC set condition, reset condition, MIL and SVS lamp behaviour, symptoms on the vehicle with and without backup control, pre-inspection work, after-inspection work, and estimated failure factors. The inspection steps themselves use YES/NO decision boxes with HINO DX II data monitor and active test routines embedded where they apply – VNT inspection, EGR inspection, cylinder cut-off test, DPR soot amount and DPR mode monitoring, and the SCV free acceleration test with the common-rail pressure criteria.

The manual also covers the wiring and connector discipline Hino expects on these trucks. Signal check harness use, back-probing rules for waterproof connectors, resistance and voltage measurement standards, short-circuit and open-circuit isolation using connector A / B / C logic, and the multi-DTC diagnosis method that starts from ECU grounds and central connectors before chasing individual codes.

Diagnostic Trouble Code Coverage

The DTC table in Chapter 4 runs from P0005 (fuel cut valve stuck closed) through the fuel system, air system, EGR, VNT, injector, sensor and aftertreatment codes up to P2A01 and the U-series CAN communication codes such as U0073, U010C, U010E, U029D, U02A2, U0301 and U110A. Codes tied to the J08E variable nozzle turbocharger (P003A, P0045, P0047, P0048, P006E, P006F, P00AF, P2563, P2564, P2565, P259E, P259F), the EGR system (P0401, P0402, P0404, P0405, P0406, P049D, P04DA, P1458, P1459, P14B0 through P14BF, P240F), the exhaust and DPF side (P2002, P200C, P2032, P2033, P203F, P204F, P207F, P2080, P2084, P2428, P242B, P242C, P242D, P244A, P244B, P2457, P2458, P2459, P2463, P246F, P2470, P2471, P24A0 to P24B6), and the SCR / DEF system (P206B, P20EE, P2201, P2214, P2269, P2BA9) are all given dedicated procedures rather than a generic paragraph. If the truck is showing a MIL or SVS lamp, this is the book that turns the code into a repair plan.

Who This Manual Suits

This is a working reference for fleet technicians, independent diesel shops and owner-operators running Hino 238, 258LP, 268, 338 or 358 conventional trucks with J08E-VB or J08E-WU power. It is equally useful for anyone preparing a diagnostic session on a common-rail Hino who wants to understand the logic behind a fault code before ordering parts – particularly around the DPR regeneration cycle, which has its own manual regeneration procedure and DPR soot amount / DPR mode monitoring inside the HINO DX II menus.

Get the Hino Engine and DPF Troubleshooting Manual as an Instant PDF

The Hino 238 258LP 268 338 358 Conventional Truck Engine & DPF Troubleshooting Manual 2017 (J08E-VB J08E-WU) gives you the fault-finding side of the Hino workshop library in one document: the component-level symptom tables for the whole truck, the complete J08E engine control system DTC range with inspection flowcharts, the DPR and DEF-SCR diagnostics, the electronic circuit testing method, and the reference data – torque values, lubricant recommendations, ECU pinouts and inspection standards – that a correct diagnosis depends on. Using the right reset condition and the right follow-up test is the difference between clearing a code and actually fixing the fault, and this manual spells out both.

IMAGES PREVIEW

Delivery is by instant PDF download after checkout – no shipping, no waiting. Open it on a laptop or tablet in the workshop, print only the pages you need for the job in front of you, and keep the rest of the file on hand for the next code. Search the whole document, jump straight to a DTC, and work through the inspection steps in order.