M
Mike Calvert
GUEST
Have a rattle/vibration that only occurs after traveling at a high speed (60-75) for a couple of minutes. After stopping and restarting the noise occurs at seemingly the same RPM in each gear of the transmission. It only lasts for about a total of a minute which leads me to believe it's a heat/exhaust rattle problem. It never occurs unless the truck has been driven at a high speed for a few minutes. I know exhaust baffles and guards expand and contract at various temperatures? It sounds kind of like the old EGR valves or smog pumps at various times. Don't know if the AV has any such device. I'm stumped? Anyone heard a similar vibration??