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Q: New relay, has an extra prong. Fan won't stop running after installing.

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I bought a new Fan relay, I noticed it had an extra prong in the middle. However there isn't a place to plug it in just an empty space. I plugged it in and immediately the fans kicked on, but they won't turn off. The more pressure I put on the relay the faster the fans spin.

My car has 150000 miles.
My car has an automatic transmission.

This is most likely the wrong relay for your vehicle. Either looked up or packaged incorrectly. I suggest matching up the original relay.

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