I checked all the belts before and even sprayed that stuff (watever its called) to stop the squeek in the belts but the sound just keeps coming back here and there. Yes I checked pwr steering fluid and its not it. Recently its been getting worst comes on at some bumps, turns, or even just drivn straight and to make matters worst now my temp gauge drops all the way down. I warm up the engine temp goes about almost half-way but when I start to drive the temp drops way down below and also rpm stays at about 3000 to 2500 when temp is below cold line. Rpm only returns to normal when temp goes back up which it only does when at idle for about 2 to 3 min. What is going on!!!!!!!!!!!!!