Did your oil pressure drop unexpectedly down to zero at a stop light in your Jeep Wrangler? This is a common issue with Jeep Wranglers and TJ's specifically. No need to fear though, this is most likely only an issue with the oil pressure sending unit. These sending units can become faulty and give a false oil pressure reading. If you feel like everything in your Wrangler is fine such as oil level, oil cleanliness and engine temperature you are probably okay. You just need to swap out the oil pressure sending unit.

The oil pressure sending unit is easy to replace. It is located near the oil filter and can be swapped out in 10 minutes. They are a relatively cheap part from the auto parts store.