Re: Concerning Bubbles & Vapor Lock

Posted by TxGoat On 2023/5/20 8:48:29

Many older Ford V8s suffered "vapor lock" as a result of a worn fuel pump actuating rod. The pushrod that operated the pump would eventually wear down and reduce the pump's stroke. This condition usually showed up in hot weather, and in extreme cases, even in cold weather once the engine warmed up. The cure was simple: Replace the worn pushrod.