How-to: 2000-2006 Jeep Disc Brake Pads and Rotors Service

2000-2006 Jeep Front Brakes Service and Pad Replacement… In this disc brakes service how-to HD video, Moses Ludel shares the replacement of brake pads, rotors and related parts on these Jeep models: 1990-95 Jeep YJ Wrangler, 1997-2006 Jeep TJ Wrangler, 1990-2001 Jeep XJ Cherokee, 1990-92 Jeep MJ Comanche and the 1993-1998 Jeep ZJ Grand Cherokee. […]

Jeep Q&A:  YJ and TJ Wrangler Axle, Transmission, Transfer Case and Driveline

Jeep Q&A: YJ and TJ Wrangler Axle, Transmission, Transfer Case and Driveline

Q&A: Jeep YJ & TJ Wrangler Axles, Transmissions and Transfer Cases       Enjoy the many detailed, traditional ‘Q&A’ exchanges in these article columns…’Q & A’ has now moved to open, interactive forum discussions. Visit the forums, you’ll want to join—for free!      Have technical questions about your Jeep 4×4,  popular 4WD truck, SUV, ATV, UTV or dirt motorcycle—or welding […]

Jeep Q&A: YJ and TJ Wrangler Fuel, Spark and Emission System

Jeep Q&A: YJ and TJ Wrangler Fuel, Spark and Emission System

Jeep Q&A: YJ and TJ Wrangler Fuel, Spark & Emission Systems      Enjoy the many detailed, traditional ‘Q&A’ exchanges in these article columns…’Q & A’ has now moved to open, interactive forum discussions. Visit the forums, you’ll want to join—for free!      Have technical questions about your Jeep 4×4,  popular 4WD truck, SUV, ATV, UTV or dirt motorcycle—or welding and […]

4WD Mechanix Jeep 4×4 Section

4WD Mechanix Jeep 4×4 Section

4WD Mechanix Magazine’s Jeep 4×4 Section! This section of 4WD Mechanix Magazine focuses on Jeep 4x4s and SUVs, including maintenance, how-to, Q&A, upgrades, lift kits, engine buildups, tuning, suspension and powertrain upgrades. Emphasis is on restoration, hardcore Jeep trail runners, overland Jeep 4WD vehicles and Jeep off-road performance 4x4s. *Click on the “Site Content Directory” […]

Jeep Q&A: Willys, CJ and Jeepster Engine Upgrades and Swaps

Jeep Q&A: Willys, CJ and Jeepster Engine Upgrades and Swaps

Q&A: Willys, Jeep CJ & Jeepster Engine Upgrades and Swaps Enjoy the many detailed, traditional ‘Q&A’ exchanges in these article columns…’Q & A’ has now moved to open, interactive forum discussions. Visit the forums, you’ll want to join—for free! Have technical questions about your Jeep 4×4, popular 4WD truck, SUV, ATV, UTV or dirt motorcycle—or […]

Jeep Q&A: Willys, CJ and Jeepster Tires, Suspension, Steering and Brakes

Jeep Q&A: Willys, CJ and Jeepster Tires, Suspension, Steering and Brakes

Q&A: Willys, CJ & Jeepster Tires, Suspension, Steering and Brakes Enjoy the many detailed, traditional ‘Q&A’ exchanges in these article columns…’Q & A’ has now moved to open, interactive forum discussions. Visit the forums, you’ll want to join—for free! Have technical questions about your Jeep 4×4, popular 4WD truck, SUV, ATV, UTV or dirt motorcycle—or […]

4WD Mechanix Tech How-to Channel

4WD Mechanix Tech ‘How-to’ Channel Playlist! Free Technical Video Viewing Available at This Website: This Moses Ludel ‘Live Tech’ Q&A vlog series shares insights into motor oils, oil filters and maintenance. Want your Jeep 4WD or any other 4×4 truck/SUV engine to last over 200,000 miles? See the four vlog topics (below). Click to access […]

Moses Ludel’s 4WD Mechanix Magazine – Video Features and Technical Articles!

Moses Ludel’s 4WD Mechanix Magazine – Video Features and Technical Articles!

Make 4WD Mechanix© Magazine and HD Video Network programming a ‘Favorite’…Enjoy multi-channel viewing and full screen, 1080P High Definition Video coverage here at the magazine website! Magazine Exclusive—We’re First to Install the ‘MSD Atomic EFI’ on a Jeep 4.2L Inline Six Rock Crawlin’ Trail Runner! The magazine tests the new Jeep Wrangler Unlimited Rubicon 4×4—and picks it as ‘2012 […]

Routine Service for Late Jeep 4WD Models

Routine Service for Late Jeep 4WD Models

Jeep 4WD How-to: Late Model Preventive Maintenance and Routine Service Jeep 4WD owners continue to access rugged and challenging trails! Here, Warn’s modified late JK Wrangler Rubicon 4-door boasts a complement of aftermarket accessories. Plying the rocks at Moab, Utah, this Jeep JK Wrangler 4WD demands preventive maintenance and punctual routine service! The Jeep XJ […]

Jeep TJ Wrangler Front Suspension Upgrade

Jeep TJ Wrangler Front Suspension Upgrade

Part 1: Installing FTS Jeep TJ Front Suspension Lift Package The installation of a Jeep TJ Wrangler Full-Traction Suspension 4” Ultimate package provides guidelines for front suspension rebuilding and even a complete axle housing replacement. Whether you intend to lift a TJ Wrangler, repair a damaged front end or replace worn components, this article provides step-by-step […]

Moses Ludel’s 4WD Mechanix Magazine – Part 2: TJ Wrangler Rear Suspension Work

Moses Ludel’s 4WD Mechanix Magazine – Part 2: TJ Wrangler Rear Suspension Work

Part 2: Installing FTS ‘Ultimate’ Rear Suspension System Rear Suspension Work Installation of the Full-Traction Suspension 4” Ultimate package includes a complete revamp of the TJ’s rear suspension. Steps involved also apply to rebuilding the stock suspension or the replacement of an OE axle assembly. Whether you intend to lift a TJ Wrangler, repair rear […]

Moses Ludel’s 4WD Mechanix Magazine – Jeep XJ & MJ Axle, Transmission, Transfer Case & Driveline

Moses Ludel’s 4WD Mechanix Magazine – Jeep XJ & MJ Axle, Transmission, Transfer Case & Driveline

Q&A: Cherokee & Comanche Axle, Transmission, Transfer Case & Driveline      Enjoy the many detailed, traditional ‘Q&A’ exchanges in these article columns…’Q & A’ has now moved to open, interactive forum discussions. Visit the forums, you’ll want to join—for free!      Have technical questions about your Jeep 4×4,  popular 4WD truck, SUV, ATV, UTV or dirt motorcycle—or welding and metal fabrication? […]

Moses Ludel’s 4WD Mechanix Magazine – Part 3: Alignment Details and Final Suspension Tuning

Moses Ludel’s 4WD Mechanix Magazine – Part 3: Alignment Details and Final Suspension Tuning

Part 3: Suspension & Wheel Alignment, Driveline Upgrades and Exhaust [Illustration courtesy of Jeep® Corporation.]    Once the new suspension system is in place, final adjustments will be necessary. Even a non-adjustable, fixed-length link arm system will require caster and toe-in checks. With adjustable link arms, the possible adjustments also include axle and frame front-to-rear alignment, […]

Moses Ludel’s 4WD Mechanix Magazine – Jeep YJ and TJ Wrangler Tire, Suspension, Steering and Brakes

Moses Ludel’s 4WD Mechanix Magazine – Jeep YJ and TJ Wrangler Tire, Suspension, Steering and Brakes

Q&A How-to: Jeep YJ & TJ Wrangler Tire, Suspension, Steering & Brakes      Enjoy the many detailed, traditional ‘Q&A’ exchanges in these article columns…’Q & A’ has now moved to open, interactive forum discussions. Visit the forums, you’ll want to join—for free!      Have technical questions about your Jeep 4×4,  popular 4WD truck, SUV, ATV, UTV or dirt motorcycle—or welding […]

Moses Ludel’s 4WD Mechanix Magazine – Jeep Multi-Point Injection: Operation and Troubleshooting

Moses Ludel’s 4WD Mechanix Magazine – Jeep Multi-Point Injection: Operation and Troubleshooting

How-to: Troubleshooting Jeep Fuel Injected MPI Engines Overview: Jeep ‘PCM’ and Multi-Point Fuel Injection Systems      AMC electronic fuel injection for Jeep engines dates to 1987. From 1987-90, the 4.0L XJ Cherokee benefited from multi-point fuel injection. This reliable Renix system could easily have been adapted to the 4.2L six, a move that would likely have earned […]

Moses Ludel’s 4WD Mechanix Magazine – Jeep YJ and TJ Wrangler Routine Service & Miscellaneous Q & A

Moses Ludel’s 4WD Mechanix Magazine – Jeep YJ and TJ Wrangler Routine Service & Miscellaneous Q & A

Q&A: YJ and TJ Wrangler Routine and Miscellaneous Service      Enjoy the many detailed, traditional ‘Q&A’ exchanges in these article columns…’Q & A’ has now moved to open, interactive forum discussions. Visit the forums, you’ll want to join—for free!      Have technical questions about your Jeep 4×4,  popular 4WD truck, SUV, ATV, UTV or dirt motorcycle—or welding and metal […]

Moses Ludel’s 4WD Mechanix Magazine – How-to: Winter Oil and Filter Change

Moses Ludel’s 4WD Mechanix Magazine – How-to: Winter Oil and Filter Change

Jeep 4WD How-to: Winter Engine Oil Change with a New Mopar Oil Filter!      Oil and filter changes are a critical part of Jeep maintenance. Whether your Jeep is new or has high mileage, premium oil and regular filter changes protect your investment. Use of genuine Mopar filters will extend your Jeep’s service life and increase reliability. […]

Moses Ludel’s 4WD Mechanix Magazine – Tuning and Troubleshooting the 2.5L Jeep TBI Four

Moses Ludel’s 4WD Mechanix Magazine – Tuning and Troubleshooting the 2.5L Jeep TBI Four

How-to: Tuning & Troubleshooting Jeep 2.5L TBI Four-Cylinder Engines In 1986, the AMC 2.5L/150 four cylinder engine gained throttle body injection in the XJ Cherokee applications. This same engine in the Jeep CJ models still used a carburetor. The YJ Wrangler application of the 2.5L, introduced with the 1987 models, came with TBI, making this […]

Moses Ludel’s 4WD Mechanix Magazine – Jeep XJ and MJ Fuel, Spark & Emission System

Moses Ludel’s 4WD Mechanix Magazine – Jeep XJ and MJ Fuel, Spark & Emission System

Q&A How-to: Jeep XJ Cherokee and MJ Comanche—Fuel, Spark & Emissions      Enjoy the many detailed, traditional ‘Q&A’ exchanges in these article columns…’Q & A’ has now moved to open, interactive forum discussions. Visit the forums, you’ll want to join—for free!      Have technical questions about your Jeep 4×4,  popular 4WD truck, SUV, ATV, UTV or dirt motorcycle—or welding and […]

Moses Ludel’s 4WD Mechanix Magazine – Jeep Electrical Troubleshooting & Field Fixes

Moses Ludel’s 4WD Mechanix Magazine – Jeep Electrical Troubleshooting & Field Fixes

      Jeep Technical How-to: Electrical Troubleshooting and Quick Fixes     Troubleshooting skills play a large role in four-wheel drive survival. Many mechanical problems can be repaired in the field.      Although late model Jeep 4WD powertrains and chassis are dependent on modules and electronic components, most of these devices have long service lives. Fortunately, items like the electronic control module, […]

Moses Ludel’s 4WD Mechanix Magazine – Jeep XJ & MJ Tire, Suspension, Steering and Brake System

Moses Ludel’s 4WD Mechanix Magazine – Jeep XJ & MJ Tire, Suspension, Steering and Brake System

Q&A How-to: Cherokee & Comanche Tires, Suspension, Steering and Brakes      Enjoy the many detailed, traditional ‘Q&A’ exchanges in these article columns…’Q & A’ has now moved to open, interactive forum discussions. Visit the forums, you’ll want to join—for free!      Have technical questions about your Jeep 4×4,  popular 4WD truck, SUV, ATV, UTV or dirt motorcycle—or welding and metal fabrication? The […]

Moses Ludel’s 4WD Mechanix Magazine – Jeep Emission Control Troubleshooting

Moses Ludel’s 4WD Mechanix Magazine – Jeep Emission Control Troubleshooting

Jeep How-to: Tailpipe Emission Controls and Troubleshooting      Note: The PCM is responsible for a number of emissions and evaporative canister functions. As a monitor, the PCM protects the catalytic converter from overheat or damage by watching for engine misfire. Uniquely, the PCM knows when the engine misfires by sensing subtle changes in crankshaft rpm. A […]

Moses Ludel’s 4WD Mechanix Magazine – Mopar TechAuthority: The OEM Jeep Technical Resource

Moses Ludel’s 4WD Mechanix Magazine – Mopar TechAuthority: The OEM Jeep Technical Resource

  Mopar® Provides the Global ‘TechAuthority II’ Website!        As a Jeep technical professional and author of the bestselling Jeep® Owner’s Bible™ and two Jeep® CJ Rebuilder’s Manuals (each from Bentley Publishers), I value Mopar technical resources! The internet is rife with information; however, there is only one Jeep® and Dodge-Ram “factory” information source—Mopar TechAuthority!..Whether I am rebuilding, […]

Moses Ludel’s 4WD Mechanix Magazine – NP231 and NV231 Jeep Wrangler Transfer Case Rebuild: Part 1

Moses Ludel’s 4WD Mechanix Magazine – NP231 and NV231 Jeep Wrangler Transfer Case Rebuild: Part 1

How-to, Part 1: Disassembly & Inspection of NP/NV 231 Transfer Case 1: The New Process/New Venture type 231 transfer case is identified by its distinct I.D. plate. The 231 is popular on the Jeep YJ Wrangler, Jeep TJ Wrangler, the Jeep XJ Cherokee and some Jeep Grand Cherokee models. Read the plate carefully for details […]

Moses Ludel’s 4WD Mechanix Magazine – Willys, CJ & Jeepster Routine Service & Miscellaneous Q & A

Moses Ludel’s 4WD Mechanix Magazine – Willys, CJ & Jeepster Routine Service & Miscellaneous Q & A

Q&A: Miscellaneous Willys, Jeep CJ & Jeepster Questions and Answers Enjoy the many detailed, traditional ‘Q&A’ exchanges in these article columns…’Q & A’ has now moved to open, interactive forum discussions. Visit the forums, you’ll want to join—for free! Have technical questions about your Jeep 4×4, popular 4WD truck, SUV, ATV, UTV or dirt motorcycle—or […]

Moses Ludel’s 4WD Mechanix Magazine – How-to: Jeep Cherokee Power Window and Door Lock Switch Replacement

Moses Ludel’s 4WD Mechanix Magazine – How-to: Jeep Cherokee Power Window and Door Lock Switch Replacement

  How-to: Jeep Cherokee Power Window and Door Lock Switch Replacement      Whether it’s the legendary longevity of a Jeep XJ Cherokee or just the nature of manual electric switches, the power window and door lock switches do wear out over time. The troubleshooting will be easier with a factory workshop manual for your Jeep XJ Cherokee.  At left is […]

Moses Ludel’s 4WD Mechanix Magazine – Routine Service & Preventive Maintenance

Moses Ludel’s 4WD Mechanix Magazine – Routine Service & Preventive Maintenance

Jeep 4WD How-to: Routine Service and Preventive Maintenance The TJ Wrangler brought a traditional Jeep 4WD utility model into the modern era. A 15% stiffer frame and Quadra-Coil® suspension distinguish this rugged model. The subsequent JK Wrangler frame is even beefier and more rigid! Chassis tuning is at the suspension level with these Jeep models. […]