Where is the o2 sensor on 2005 Dodge Grand Caravan?

The location of the O2 sensor(s) on a 2005 Dodge Grand Caravan depends on the engine. There are typically one or more upstream (before the catalytic converter) and one or more downstream (after the catalytic converter) O2 sensors. They're usually found in the exhaust manifold or the exhaust pipe near the manifold.

To find it, you'll need to:

1. Consult your vehicle's repair manual: This is the most reliable source. The manual will have diagrams showing the exact location of the O2 sensors for your specific engine.

2. Look online: Search for "2005 Dodge Grand Caravan O2 sensor location [engine size]" replacing "[engine size]" with your engine's displacement (e.g., 3.3L, 3.8L). Many forums and websites have pictures and descriptions.

3. Check under the vehicle: With the engine cool, carefully look underneath your van near the exhaust manifold and the exhaust pipes for the sensors. They are usually threaded into the exhaust system and have a wire harness connected to them. Be cautious as the exhaust system is hot even after the engine has cooled.

Warning: Working on the exhaust system involves hot surfaces and potentially dangerous chemicals. If you're not comfortable performing this task yourself, take your van to a qualified mechanic.