I have a 92 pickup with a 22RE, lately it has started squealing at idle but only when the engines warm. Any ideas what it could be?

Thanks,
Bryan

 

Loose belts and/or low power steering fluid.

 

The belts are tight. Whats weird is it will only do it when its warmed up and it only does it at idle.

 

Check the power steering fluid level and then bleed the system.

 

Yeah, uh, ditto.

 

Might also check the idler pulleys on the p/s and a/c (if you have those options). Easy check is to loosen the idler and feel the pulley w/o the blet on it. Should spin smoothly, if it feels gritty or is loose and wobbles, the bearing is in need of lube or replacement.