Home › Forums › Stay Dirty Lounge › Service and Repair Questions Answered Here › 5.7 vortec engine › 5.7 vortec engine November 6, 2019 at 12:57 am #895230 IvanParticipant Yes thats the reading on the cluster without the key in the ignition if i put the key in they will drop and will go back up as the engine warms up