The Jeep WJ has a number of systems that should be routinely inspected and maintained to ensure that they operate and remain in good condition for years to come.
The Jeep WJ has a number of systems that should be routinely inspected and maintained to ensure that they operate and remain in good condition for years to come. However, there can be differences from one make and model of WJ to the next, so you will need to reference the chart in the owner’s manual, or the chart below, for specific calibrations, limits, and adjustments to the systems. Many WJs have a perform service light that will come on, and it will stay on even after you have completed service on that system. You will have to reset this manually after you perform the system servicing. Often, if a malfunction occurs the system will lock the key in the ignition switch so that you are warned about the safety issue. You can start and stop the Jeep, but you won’t be able to take the key out. The exhaust, cooling, brake, fuses, and onboard diagnostic systems will also need regular inspection. The following chart will assist you with the routine time between inspections, and how to affect the service.
