-
Engine
01/31/2019
OCCASIONALLY THERE IS A LOUD SOUND IN THE CABIN OF WATER SLOSHING BACK AND FOURTH UNDER THE DASHBOARD. SOME DAYS IT WILL HAPPEN WHEN THE ENGINE STARTS. OTHER TIMES, IT IS AFTER DRIVING SEVERAL MILES. SOMETIMES IT HAPPENS A FEW DAYS IN A ROW. OTHER TIMES IT WILL GO A WEEK WITH NO NOISE. THE GM MECHANIC VERIFIED THAT THE COOLANT LEVEL IS FINE. IT HAPPENS WHEN THE CAR IS STATIONARY OR MOVING. I HAVE NOT HEARD IT AT HIGH SPEEDS.