Hi guys, first post.

I have a 93 Toyota pickup 4x4, no AC. I just had the belts changed the other day due to a squealing noise from them. So when I was driving it today, it started screeching at 3100rpm. Does anybody have an idea, about what this might be?

 

Couple common things:
1. Check your belt tensioner pulley. They squeal like scalded banshees when worn out.
2. These engines hate high quality belts designed to last a long time. They are made of stiffer compounds and have fewer teeth. Cheaper belts seem to work much better as they are usually softer and have more teeth.

 

An old trick to confirm belt squeak is to touch a bar of soap to the contact surfaces of the belt while it's running. If the squeal goes away, you've found it. Maybe even water would work for this.

 

yeah, the squeal is a belt. figure out which one, and either get it tight, or replace it. when my 22re's have squealed, the problem has ALWAYS been the alternator belt. start there.

 

They make belt dressing.

 

I mean, I JUST had the mechanic put in brand new belts yesterday, so idk if it could be the belts by that logic. If it's my belt tensioner pulley, where would that be???

 

If a belt is squeeling immediately after your mechanic replaced the belts, I would take it right back to him and get him to check his work. Or you can check them yourself, maybe he didn't tighten one of them enough.

 

yeah, I'll definitely make sure to do that then. My Toyota is pretty much a barn find that hasn't been worked on in like 20 years. So if there's any other part that could've worn out that goes with the belts that would be cool to know too. The truck only has a 101,520 miles on it too.

 

There's one idler pulley for the power steering pump belt, just between the distributor cap and the center of the engine. Just follow the PS belt.
IF you have AC, it has one as well. Again, just follow the belt.
The water pump/alternator belt does not have one. You adjust the tension of that belt using the alternator.

As far as what else to check right off: The radiator hoses. There are three of them. Chances are, they're rotten through and through. Same for the small water hoses under the throttle body. They do get old and rotten. The hoses feeding the heater core. To the heater control valve, from that to the firewall, and from the firewall down to the return pipe.

Same with ALL the fluids, except maybe the PS fluid. Remember, it uses ATF fluid, NOT regular PS fluid. But the coolant, use the Toyota red, at a 50/50 mix. Oil and filter. Brake and clutch fluid. It absorbs water over time. Transmission oil, and differential oil. Grease the driveshaft U Joints!

Other than that...
Pat☺