Piston Slap: Stumped by Stumpy Glass Run Channels!

Tony writes: Sajeev, This automotive design element has perplexed me for years. What is the small, usually black bump or protrusion on the front window glass run channel of certain cars? The 2010 Nissan Versa has the most obvious one that I have seen recently. Thanks! Sajeev writes: Son, this bothered me ever since my […]

The post Piston Slap: Stumped by Stumpy Glass Run Channels! appeared first on The Truth About Cars.

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Author: Sajeev Mehta

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Piston Slap: Stumped by Stumpy Glass Run Channels!

Tony writes: Sajeev, This automotive design element has perplexed me for years. What is the...