How to Test a TPS Switch on a 1998 Jeep?

Answer The throttle position sensor (TPS) on a 1998 Jeep is mounted on the left side of the engine's throttle body, on the end of the intake manifold. The TPS is designed to measure the amount that the th... Read More »

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Instructions for the Ignition Switch in a 1998 Jeep Wrangler?

Replacing the ignition switch on a 1998 Jeep Wrangler entails removing the ignition switch tumbler, as well. A point many times confused is the separation of the two related parts. The key, also ca... Read More »

How to Repair a 1998 Jeep Cherokee Neutral Safety Switch?

If the neutral safety switch on your 1998 Jeep Cherokee ever goes bad it will have to be replaced. Some parts, like water pumps or car starters can be reconditioned and repaired. However, when your... Read More »

How to Troubleshoot a 1998 Jeep?

Troubleshooting engine problems is a process of elimination. Begin with the most obvious, least expensive possibilities and work your way inward from there. Keep an eye on your dash cluster, the pa... Read More »

How to Remove the ECM in a 1998 Jeep 4.0?

The engine control module (ECM) in a 1998 Jeep 4.0 liter engine is the main computer that controls all of the engine's electronic components such as the ignition and sensors. The ECM monitors data ... Read More »