Dodge Neon & SRT-4 2003–2005 Factory Service Manual Set

The diagnostic manuals help isolate faults before mechanical work begins. The service manual supplies the repair procedures, specifications, and Group 8W wiring diagrams used alongside those tests.

The 2004 service manual has engine overhaul chapters for the 2.0L SOHC and 2.4L DOHC Turbo. The 1.6L coverage is limited to selected procedures, including starter and generator service. The Gas Powertrain manual’s coverage note refers to 2003 PL vehicles, and its engine schematics are labeled 2004.

PDF Search, Bookmarks, and Diagram Detail

Text search and navigation: The five manuals have searchable text and embedded bookmarks. Many diagram labels sit outside the searchable text, and small pin numbers and wire codes are easier to read when zoomed in. Some bookmarks that point to another PDF may require opening the target file directly.

The ZIP contains 2,708 pages across seven printable PDFs. The total includes the four-page front-matter PDF and one-page navigation PDF, along with the blank, notes, and comment-form pages within the manuals.

Engine and Transaxle Repair, Fault Diagnosis, and Wiring

These selected topics show the range of workshop information. Other sections include starter feed-circuit tests and sunroof service.

• Engine and turbo service: Engine removal, cylinder-head and bottom-end repair, timing-belt installation, 2.4L balance-shaft timing, and turbocharger and charge-air cooler service.

• Manual transaxles: T350 and T850 overhaul procedures cover serviceable shafts, synchronizer inspection, differential-bearing adjustment, and clutch service.

• Automatic transaxles: The service manual covers 40TE disassembly and hydraulic testing. The transmission diagnostic manual covers 40TE/41TE fault codes and post-repair checks.

• Powertrain diagnostics: NGC troubleshooting covers fuel injection, ignition, no-start faults, turbo boost control, and the Sentry Key Immobilizer System.

• ABS and body electronics: Diagnostic procedures cover Teves Mark 20e ABS, airbags, instrument-cluster faults, PCI bus communication, power door locks, and remote keyless entry.

• Wiring and pinouts: Group 8W diagrams, connector and ground locations, and PCM C1–C4 and SKIM pinouts help trace a fault from the diagnostic test to the relevant circuit.

The factory procedures are written for automotive technicians and suit experienced owners equipped to perform the specified tests and use the required tools.

Engine, Turbocharger, and Driveline

Engine procedures include compression and cylinder leakage tests, valve and seat service, piston fitting, bearing-clearance measurement, and oil-pump inspection. The turbocharger and exhaust manifold are serviced as one assembly.

Driveline procedures distinguish the 2.4L Turbo’s equal-length halfshafts and intermediate-shaft assembly from the unequal-length layout used on other models.

Transaxle Overhaul and Verification

The T350 output shaft is serviced as an assembly. On the T850, the Quaife ATB differential is also serviced as an assembly, with separate procedures for its ring gear and tapered roller bearings. The T850 chapter includes differential turning-torque adjustment and gearshift cable setup.

The 40TE mechanical chapter includes clutch air-pressure tests and 4XTE hydraulic schematics. The separate automatic diagnostic manual covers Quick Learn, clutch volume evaluation, electronic pinion-factor setup where applicable, and post-repair verification.

NGC Diagnostics, Emissions, and Programming

The powertrain manual uses a six-step troubleshooting process for stored codes, intermittent faults, and drivability complaints that do not set a code. It explains sequential fuel injection, open- and closed-loop PCM operation, OBD II and Euro Stage III monitors, and the limits of monitoring on certain circuits.

The Natural Vacuum Leak Detection section distinguishes passive small-leak monitoring from active medium- and large-leak tests. Turbo diagnostics cover the wastegate and surge solenoids and the throttle inlet pressure sensor and solenoid. Programming procedures cover replacement PCM and SKIM modules and ignition-key registration.

Chassis, Body, and Air Conditioning

Chassis procedures include strut and wheel-bearing replacement, wheel alignment, power-steering flow and pressure tests, brake bleeding, and SRT-4 brake service. Body sections provide opening dimensions, weld and sealer locations, and glass-service procedures.

The A/C chapters distinguish the variable-orifice setup on 2.0L left-hand-drive models from the expansion-valve setup on 2.4L and right-hand-drive models. They cover refrigerant recovery, evacuation, charging, and HVAC housing service.

Circuit References and Factory Tools

The wiring references include fuel and ignition, bus communications, ABS, and airbag diagrams, plus connector, ground, and splice locations. The manuals also provide sensor and actuator test limits, including oxygen-sensor heater checks, alongside torque tables, fluid capacities, and wear specifications.

The diagnostics use the DRBIII scan tool, Miller pinout box #8815, and evaporative-system diagnostic kit #6917. The timing procedures specify crankshaft sprocket installer #6792 and warn that incorrect sprocket depth can damage the timing belt and engine. The electrical diagnostics warn that direct probing can damage PCM terminals and cause poor pin contact.

Before beginning repair work, follow the manual’s precautions for electrical testing, pressurized fuel, airbag disabling, and vehicle support.

Selected Turbocharger and Front Brake Specifications

For the SRT-4 2.4L Turbo, the turbocharger inspection specifies axial shaft end play of 0.038–0.089 mm (0.0015–0.0035 in.) and radial bearing clearance of 0.326–0.496 mm (0.0128–0.0195 in.) to assess the assembly.

The front rotor comparison lists standard PL rotor thickness at 21.87–22.13 mm and SRT-4 BR3 performance rotor thickness at 27.91–28.10 mm. The illustration also shows the recessed area that identifies the BR3 rotor.