now the car will not turn over at all
what would make my 99 cougar shut off after oil light flashed 3 times on 1999 Mercury Cougar
By the time the oil pressure light flashes on oil pressure may have already dropped below 4 psi.Check the oil level make sure there is oil in the engine. Some American cars need an input from the oil pressure switch to run the fuel pump. If the engine doesn't crank over remove the spark plugs put the transmission in neutral and try to turn the crankshaft pulley nut with a socket to ensure the engine is nor seized. Check that battery connections are clean tight and secure and also try "jump starting" the car of another car.