Oil light flickers on & off and sometimes stays on. just had oil change not that long ago

SOURCE: oil light flickers on and

hi,
first check the sender wire to make sure its fastened securely, its probably close to the oil filter, maybe its shorting somehow but most likely its time to change the oil, and oil filter hopefully is clogged. If it still does it after you check those then it could be sludge has built up in the oil pump inlet screen and its not getting pressure the way it should, I wouldnt drive it much untill you either get a a mechanic to look at it, or you pull the oil pan and take a look at the oil filter inlet yourself.

good luck!

J

SOURCE: my battery light and brake light goes on , some time goes off and on / I have a new battery and I change the altalnator

Check the battery terminals (where they are connected to the engine.) Those clamps can be loose or corroded. It happened to me and if i hit a bump or the road was bumpy, the battery cables would slide loose and the power would flicker or die completely
Open the hood when the car is off and try to wiggle the positive nad negative connections on your battery. They shouldn't move at all. If they're loose, tighten them up carefully. If they're covered in battery acid or corroded, then you may need new terminals for your new battery to connect well to your engine. Good luck, i hope this helps.