Hyundai Repair Questions? Ask a Mechanic for Answers ASAP
Hello and welcome to just answer, my name is ***** ***** master tech here to help you. I cannot see or hear your vehicle so I rely on your input to my questions so I may help you better. I read your question and notes and have a question before we start. Have you got or can get a vacuum gauge? What your describing is perhaps a loss of vacuum at low speeds You can check all your vacuum hoses for leaks and cracks to start.