The company beast I drive, 1986 F250 4X4, has a 460. The water pump and power steering pump are driven by the crankshaft and it uses a double belt. After replacing the water pump, power steering pump, both belts and all of the pulleys, it still screeches until it warms up. And it is very very loud.

 

Id be willing to bet that there is still something wrong. Misaligned pulley, improper belt adjustment, poor pulley surface conditions, weak battery or poor connections causing excessive current draw resulting in the alternator full fielding, etc

 

It was making a strange noise ? Ya think She definitely got her $$'s worth out of those rotors !!! It is a miracle that car didn't end up in a wadded mess along side the road some where .

 

Mark's post brought backs memories of when I worked as a parts driver for a very well known auto parts store in Milwaukee in the early '80s. The trucks we drove were, with the exception of the one or two new ones added every other year, death traps. The store was centrally located in the ghetto of the city. The owner would make deals with the nearby ghetto shops to work on the trucks by trading parts and other stuff like antifreeze and oil for work performed on the trucks. The trucks always looked pretty decent because the ghetto shops would layer of bondo on them and then hose them down with cheap paint. As for mechanical maintainence things only were fixed when they broke.

Four different times I told the owner I had problems with my truck and each time I was told I wasn't a mechanic and to just shut up and drive. Batteries were always a problem.

if we had a bad battery, evidenced when we got stuck on the road somewhere and had to be towed back the boss would have us sort through the returned defective battery pile until we found one that would work. I told them one time that my front tires were bald, they replied, " don't get into any accidents", I ended up blowing a tire out and since none of the trucks had spares, or even jacks, I had to wait for another driver to come out with an equally bald spare. When I got back to the store they sent me over to the ghetto used tire store and there they searched through their huge pile of used tires and found a matching set for the front wheels. Another time I told them my starter was going out, again, " You're not a mechanic!". A week or so later the starter gave up the ghost and I was stuck at a customers place. I called in and about an hour later a beat up tow truck, this thing was about 20 years old and beat to hell, from the ghetto garage showed up with two guys in it. After they hooked up my truck and we started to drive away I asked why they sent to guys, the one guy in the middle of the seat told me he lost his license and couldn't drive and the guy driving didn't know how to shift a standard shift truck so he shifted while the other guy drove. And my very favorite was when I told the boss my front U joint was going out. I couldn't get the truck over 25 mph without massive vibration. Again, the "You're not a mechanic" line. A couple of days later, as I was driving up a ramp, the front front U joint broke with a loud bang. I called in and they sent out a tow truck. Later the dispatcher, one of the guys who told me I wasn't a mechanic pulled to the side and told me that when the U joint let go it tore up the transmission and did other damage and the big boss was pissed. He asked me not to tell the boss that I had mentioned the problem earlier In the week because he, the dispatcher, would get heat for it. I told him, "Screw you, I'll stand on the counter and announce it to the world that I said something earlier"

It was just funny how this place made the owner millions and they had the crappiest vehicles on the road.

 

The alternator isn't on that pulley set. The battery and alternator are also new, BTW. All of the pulleys are new from Ford (not junkyard new). And it goes away as soon as the engine warms up. I checked pulley alignment with a laser. Even the Ford dealership is mystified, so I just live with it and the looks I get from people who hear it and think I must be oblivious.