2001 v6 mustang oil pressure and rpm issues in 2nd gear

Hello, when you say the oil pressure drops to zero - is this the gauge you are watching? Or do you have an actual oil pressure gauge hooked up to the engine block to measure actual pressure? The "bogging down" and oil pressure reading (whatever method that is by) likely has nothing to do with a vacuum leak. If you have an intake or exhaust restriction, it will reduce performance. Crankcase ventilation should be checked also. Yes, always check things you know to be in question - such as the oil pressure reading - first. If you manually choose second gear or first gear - does it happen? Or is it in "drive" gear? Share some more information!

Hi, this is Bo, an auto expert on RepairPal's Car Genius team! That pony needs to run! Start by checking the intake manifold gasket, vacuum hoses, and PCV valve for leaks or cracks. Also, inspect the transmission fluid level and condition, and consider having the transmission inspected by a professional if you suspect a gear issue. Additionally, check for any other potential engine or fuel system problems that could affect performance under acceleration. If you're unable to diagnose the issue, consult a mechanic for further assistance. If you have any other questions feel free to call us at 877-913-1554! We'll gladly find you a certified RepairPal shop in your area!