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Jul 27, 2016
Bosch 13115 Oxygen Sensor for Mercury Sensor
The check engine light on the Cougar had been going on and off (mostly on) for years causing problems at inspection. The car was taken to various mechanics including the Ford Dealership and none of them could figure out why tis was happening. My son came out and started looking at the car using his phone to check for problems. It was he who discovered that the lack of the sensor was the likely culprit and found it on eBay. He put it in a few weeks ago and there's been no problem nor recurrence of the light going on since then. We're very happy with the results.