Thank you that is some good advice. Smooth side is for water pump, did not think about that. Alternator and Power Steering pulley are groove side. So maybe possibility Power Steering pulley could be affecting my alternators some, not sure. Just replaced 4 out of 5 relays as well because I know some were temperamental and not working properly. This car has alternator issues every so often, so I've been trying differnt things out over the years. Belt tensioner pulley is automatic I believe, pulley roates fine but I will replace it and the belt soon along with some other things like spark plugs and such. Belt tensioner is original, belt was replaced at 80k miles and car has 165k on it now, but belt is in better condition than when I replaced it at 80k. I do drive the car hard but I warm it up properly and only abuse it when it's ready.
So reason for WP replacment was:
Most recent main issue I was having was losing coolant, and also lost a lot of oil somehow. I did have a shop do a coolant flush at one point thinking it would be a good investment. 3 months later I have all these issues I've never had before. Check fluids and there's no coolant in reservoir and dipstick isn't showing any oil either. Also started seein smoke/fog/vapor come through the air vents intermittently under higher rpms after oil was replaced, and then changed again because it was super dirty. Smoke/vapor was even happening during idle and giving the car a little gas. Also noticed a faint but noticeable coolant smell coming in through the cabin more and more frequently and was leaving puddles under the car. Finally figured out it was water pump that was leaking, and I'm hoping this has somethin to do with the vapor coming through the vents too. Thought it may have been electrical after high output alternator replacment so that's why I did the relay swap.
Leading backstory:
About 8 mos ago had a shop replace transmission and they said they couldn't guarantee the work unless they did radiator too because it was damaged slightly.. Had a coolant smell coming into car after tranny and rad replaced, but I wasn't using the AC because it was winter. A month goes by and then AC finally went out about a week after I started using it. Took it back to the guy he said he forgot to charge the AC system and all was good. AC went out again a week later and the coolant smell was strong. He said just keep on driving it and basically bring it back if it breaks down.... Pretty sure this guy broke something or sabotaged something in my car hoping I would sell it or that I would total the engine. A few days later I know something's not right and something major is going to happen. He said he put some dye in it this time and just keep driving it and bring it back after AC breaks again... I take it back and he says heater core went out and a bunch of other stuff and that I owe 2.4k, after I had just paid him 5k for the transmission... He was my only option for transmission rebuild during Xmas week and I needed the car for work, checked every other shop and they were booked over a month out in advance. I immediately get my car and take my business elsewhere to replace the heater core and hoses so that he doesn't break something else (did not know I could do the U-tube and bypass it at the time), and also wanted a shop to see what in fact was broken. Some people online say coolant smell and vapor coming through vents could be heater core, but it's relatively new so I'm hoping it's just the water pump, T-stat, etc thats the problem. When I took the T-stat out it was covered in crud, and water pump was also full of crud. Internally hoses look like they were rusting and were falling apart. I also just changed fuel filter last night which was also very dirty with crud.
Random thought regarding part of crankshaft?
Also if I hit a puddle I get a very loud short screech that sounds like a boiling kettle for 2 or 3 seconds. It almost seems like it happens more on the right side but not sure. Hope it's not something near crankshaft, saw a plastic ring beneath water pump, kind of behind the teeth portion on the crankshaft pulley that had cracked, not sure if it's important or just a small protector. I'll have to do more research on harmonic balancer stuff and crankshaft, and I've been told I also have a small oil leak coming from oil pan. As long as it doesn't require lifting the engine, I plan on doing all future repairs myself, I'm done with these shops messing something up. Unfortunately I'm stuck with this 210 hp v6, I see everyone with new and more efficient mustang's that get 2x the power I have and better mpg... I'm broke and have been stuck fixing this car up over the past seveal years, and the unexpected transmission replacement pretty much wiped me out.