Jeep Wrangler Archives - UnderhoodService
Prevent Premature Jeep JK Part Wear with Ball Joint Upgrades

Visit any online forum dedicated to the Jeep® Wrangler JK, and you’re likely to find threads focused on solutions for fixing a worn or damaged ball joint. That’s because ambitious off-roading, popular modifications, and the design of the original equipment part can all contribute to ball joint failure in the Jeep JK. Ball joints are

When Over-Voltages Electrocute PCMs

During the past nine months, I’ve had three instances of powertrain control module (PCM) failures on Jeep Wrangler vehicles that were evidently caused by an over-voltage condition. The first case involved an owner who requested that a local shop replace the fuel pump because his ’98 Wrangler was slow-starting in the morning.