You're not gonna last too long here. I've been convinced that the sound is comming from there. I don't want to start ripping out parts without a better theory. There is no real noise they make, but any noise from the front end could result in bad things. If it did, it would sound like the battery was charged, or charged enough at least, to start the car.
Since you have replaced the alternator, that leaves the battery. So, instead of going to the nearest vehicle repair shop, give these instructions a try! The Bearings Failure One of the most familiar failures that the alternator is susceptible to is the bearings failure. One of such tests involves the car. If the battery is fully charged and the car still does not start, this is an indication of potential alternator failure. Re torqued the belt that goes around it and now, it seems way better sounding.
In a worst-case scenario, you might find yourself far from home with no means to contact a tow truck and a car that won't run or restart. Be it dirt or the change in climatic conditions; alternators may wear out with time. If the surface of the idler pulley wears, or the pulley seizes or binds it may cause the engine belt to squeal as a result of it rubbing against the surface of the pulley. In this case, do not proceed to the next step but instead go directly to the mechanic to have it. I think you still have either one or both of those problems again.
This light usually is represented with a symbol of a battery. Anything less than 12 may indicate a problem. Before you decide you need to yank the alternator and replace it, make sure you check the serpentine belt. That's the from the battery running through the charging system. I'm just saying unless you rev that engine, you won't notice a bit of difference with light dimming or the similar.
These require a special measuring tool to check for wear in the belt grooves, as the belts will not show signs of cracking. Make sure to leave some limp and let the belt decrease an inch. If this bulb is burned out, chances are the alternator won't work. The whining noise is probably caused by worn-out bearings. Unless you're revving the engine over 2000 rpms, you want notice a difference. Everything seems to be functioning properly.
Take the belt off and spin the alternator manually, as you may be able to gauge the sound source better. Once it is determined that the alternator bearing is loose, replace it because a loose bearing gets damaged. Well like I said yesterday I was going to install the new alternator but I found out my original one one in my car is fine and its not broke. My Subaru has a similar tensioner for the timing belt. Hold one end of the tubing to your ear and use the other end to listen to both ends of the alternator, same for the power steering pump and the center of the water pump at the pulley front.
If the headlights tend to faint or if they turn off completely, the alternator is at fault. Similarly, if your instrument panel is dimming slowly, your alternator has probably died completely and it's only a matter of time until your battery is drained. Talking about its working, when the engine is given a run, the crankshaft impels the drive belt. When inside of your car, an alternator powers the as well as keeping the battery charged. I really don't like it when someone comes to a thread and continously posts irrelevant stuff. The symptoms will show different problems with the alternator bearings and other issues in the vehicle. Nothing else is weird with my car, every electrical works, car starts fine.
I can give you all the advice you want, but at the core of it without popping the hood and looking at it myself, a lot of it is just intuition and experience. I changed the serpentine belt and that helped some no more squeaking , when the belt was off i spun all the pulleys by hand the alternator pulley has a slight squeak when turned by hand. I seek out others that have upgraded to a 145 amp alternator and think I made my message pretty well clear and understandable. I took it for a 4 hour drive yesterday and since my hearing is bad my young lad asked if there was a supercharger in the car---lol. I put a bigger alternator in it and I noticed much less dimming happening. I do also like going back and forth on these two threads talking to you, though. Usually a will produce a few symptoms that can notify the driver of an issue.
I'm sure I will notice a gain in using a 145 amp vs a 105 amp. Judging by most of your recent posts my semi-professional opinion is that you need a new car, lol. Step 1 - Identify the Source This kind of noise may originate from your , alternator pulley, or from the modern serpentine belt, so you will have to figure out which one is the perpetrator. A visual check underneath the hood of the car can reveal loose wire or a faulty connection. Over time, as the pulley spins against the belt, both components will eventually start to wear. Improperly aligned will often produce a whining sound.
Did you ever see that video of the 99 2500 dragging the turdra behind it like a toy? It might be better to change it now, rather than later. It is safer to dismantle the unit from the vehicle, to check it on the bench. Yes, the part number on the belt for a 135 amp equipped truck is different than for a 105 amp equipped truck. If you alternator is working properly you shouldn't even know that it's there. I'm kinda hoping the 145 amp alternator handles the power drain better, not that it really was much of an issue with the 105 amp, but bigger is better with a 145 amp alternator.