Description

Chrysler 150, 350, Ramcharger 1993 Service Manual – Factory OEM Specs for RWD Trucks

You are looking at a 1502-page brick of factory truth. I am Mike Callahan, 28-year ASE Master, and I have seen one too many aftermarket manual send a tech down a dead-end with a torque value that belongs on a passenger car, not a 350 truck. This Chrysler 150, 350, Ramcharger 1993 Service Manual comes straight from Chrysler Corporation – the same book dealerships used when these trucks were new. No condensed steps, no generic specs, no guesswork.

Engine Overhaul: Crankshaft End Play and Main Bearing Clearance

Engine section covers the full range – from the base 3.9L V6 to the 5.2L and 5.9L V8s. Torque sequences are given as midpoint values, not ranges. The main bearing cap bolt torque for the 5.9L is listed with a specific pattern. Aftermarket books will tell you “tighten to spec” and leave you guessing. This manual spells out each step, including Plastigage measurement for bearing clearance. Do not skip the break-in procedure at the end of the assembly chapter – it is in there because Chrysler wrote it for a reason.

Cooling System: Thermostat and Fan Clutch Specs

Cooling System chapter includes fan clutch engagement temperature, thermostat rating, and coolant capacity for each engine option. The radiator drain plug torque is specified – I have seen stripped drains from people using a wrench instead of the spec. The manual also covers the viscous fan drive test: run the engine cold, listen for the roar, check freewheeling resistance. If you need to replace the water pump, the gasket surface prep instructions are right there. Follow them.

Electrical Diagnostics: Starting and Charging System

Electrical section runs over a hundred pages. It covers the entire wiring diagram for the Ramcharger and the 150/350 trucks. The starting system includes a voltage drop test procedure using a DVOM – no short cuts. The charging system troubleshooting tree starts with battery open-circuit voltage and works through the ASD relay and alternator field circuit. I have chased more electrical ghosts caused by aftermarket manuals omitting the fusible link location. This book shows every connector, pin, and wire color. Use it.

Fuel System: Factory Testing Procedures

Fuel System chapter covers throttle body injection (TBI) and the optional Cummins diesel fuel system. The fuel pressure regulator vacuum test, injector resistance values, and the idle speed control motor adjustment are all detailed. For diesel, the injection pump timing procedure uses a dial indicator and specific adapter – no guessing. The fuel tank removal steps include the exact sequence for disconnecting the vapor recovery lines. If you work on California emissions trucks, the J1930 compliant terminology is used throughout. That matters for passing smog checks.

Transmission & Transfer Case: Shift Linkage and Fluid Specs

Transmission section covers the A500, A518, and A727 automatics plus the NP241 and NP231 transfer cases. The band adjustment procedure for the A727 requires a torque wrench set to 72 in-lbs on the adjusting screw, then backing off a specific number of turns. That is not a “tighten until it feels right” deal. The Manual Transmission section (for the few that came with a stick) includes shim selection for the input shaft bearing preload. The transfer case shift linkage adjustment is done with the lever in a specific gate position – the manual shows the alignment tool or you can use a 1/4-inch drill bit as a makeshift gauge. Do not rely on a Chilton for that.

Why OEM Specs Matter for Suspension and Brakes

Suspension chapter covers both front (twin I-beam) and rear leaf spring setups. The front axle pivot bolt torque is specified with the vehicle at curb weight – not on a lift. Brakes section includes rotor runout limits, caliper slide pin torque, and the proportioning valve test procedure. The frame & bumpers chapter gives the torque for the bumper bracket bolts that nobody else bothers to list. I have torqued those to spec and walked away; torqued them by feel and had them loosen. Pick your approach.

We Have Other Factory Manuals Worth Your Workbench Space

If this manual covers the right platform but you need a different year or model, check out the Chrysler Stealth 1993 Service Manual – 1286 Pages Factory OEM for front-wheel-drive performance, or the Chrysler Stealth 1993 Service Manual – 434-Page OEM Factory Specs if you only need the engine and drivetrain data. For a later SUV, the Chrysler Nitro R/T 2007 Service Manual – 1799 Pages Factory OEM covers the 4.0L V6 and Command-Trac transfer case. Every manual here is the original OEM document – no reprints, no third-party rewrites.

For manual transmissions, the factory procedure differs from the generic rebuild guides you find online. Refer to the Manual Transmission chapter in this manual for the correct end-play shim selection and synchro replacement steps. That is the difference between a transmission that shifts butter-smooth and one that grinds in third.

This Chrysler 150, 350, Ramcharger 1993 Service Manual is 1502 pages of factory engineering between two covers. Every torque value, every wiring color, every diagnostic step came from the people who built these trucks. Access the Factory Manual and put it on your shop tablet or print the pages you need. Your toolbox will thank you.

Frequently Asked Questions

Does this manual cover the 5.2L V8 and the 5.9L Cummins diesel?

Yes, both engines are covered in the Engine section.

How is this different from a Chilton or Haynes manual?

Aftermarket manuals condense procedures and use generic torque values. This is the actual factory service manual used by dealership technicians. It includes wiring diagrams, diagnostic flow charts, and specific torque sequences for every fastener. For example, the cylinder head bolt tightening procedure for the 5.9L Cummins requires a specific angle torque after the initial step. Aftermarket books skip that detail. The copyright page shows Chrysler Corporation as the publisher. This is the real thing – 1502 pages of verified data.