Q: How to remove and install an alternator on Jeep Wrangler?
A: Disconnect the battery's negative terminal and remove the engine cover if needed. For 2007 and later models, remove the air intake hose and air filter housing. Detach the electrical connectors from the alternator, possibly removing a mounting bolt for access. Loosen the alternator adjustment and pivot bolts and remove the drivebelt. For 2003 and later models, use the automatic belt tensioner to remove the drivebelt. Remove the adjustment and pivot bolts and separate the alternator from the engine. If replacing the alternator, ensure the new unit matches the old one in appearance, terminal number, size, location, and identification numbers. You may need to switch the pulley from the old unit to the new one. After installation, adjust the drivebelt tension and check the charging voltage.