1G rough idle and oil pressure dropping when stopped, coolant leaking when off

[diirtydsm]

essay ahead:
i recently replaced my alternator and power steering belts. new radiator, hoses, and thermostat as well as an oil change. ever since then, the cars been dripping and losing coolant like crazy. i mean like, when i park it, it has a constant drip and im refilling it like every other day. i don’t know where all the coolant is going because it doesn’t leak enough to lose ALL that coolant and i don’t know where the leak is coming from. ive checked everything i can think of on where it could be coming from (radiator, hoses, overflow) and nothing looks actively wet or dripping, unless im missing something. the car drinking coolant has been an issue since i got it, it just seems to be getting worse and the dripping is new. the car has also been idling rough, it usually sits right about at 1k RPM when idling, but it’s started dropping maybe a couple hundred RPMs and surges making the whole car shake when doing so. recently, my oil pressure has started tanking and the oil light flickers or fully appears when the car starts idling rough (it also only does this when the cars at operating temps/midway through longer drives. it’s fine when i first start and drive it.). oil change was less than 1k miles ago, and every time i check the dipstick its just fine, full and clean. im just at a loss of what could be going on and would appreciate any and all advice/tips/suggestions

 

[Nathan Jorgenson]

You might want to pressure test the cooling system. You can get a cheap pressure test kit off Amazon. The oil pressure issue sounds like a worn engine or the wrong viscosity of oil. There is always a chance I could be wrong. You need to test the symptoms in order to pin point where to go next. Review service info and see where it takes you.