Sometimes the fan will start. Other times it will just hum when I power it on. If I turn the power off and then manually rotate the fan a quarter turn or so, it will then start when I apply power. Does this point to bad brushes, a bad starting capacitor, or something more serious?
Bad starting capacitor, I was told. When I replaced mine, it started nicely, most of the time.
you have larger fish to fry earlier to long-- you're possibly going to lose your intake manifold gaskets sometime down the line. there exchange right into a TSB issued in this difficulty in formerly fashions (and that i think the 2004 besides), and hundreds of people have been having severe priced upkeep that GM won't conceal even regardless of the shown fact that they have huge-unfold of the concern for a while. It has to do with the Dexcool coolant they put in there (long existence coolant) which has in a roundabout way been attacking the gasket, top-rated to a leak-- probable an inner leak the place the coolant gets into your oil and creates the flair for an fairly undesirable situation pronounced as hydrolock. added, GM might void your guarantee in case you flush and oil-exchange all that stuff out and replace it with the golf green classic antifreeze.look ahead to dropping coolant stages even if in case you do not see any drips and function that engine checked and replace the gaskets with Felpro replacements. advice-- get thee removed from the GM. I threw in some Bars Leak and caught a on the industry sign in mine. much less costly, grimy restore? Dang skippy. i'm not dropping a plug nickel on the thang. this is GM's infant. Nissan is lots greater useful and that they stand at the back of their vehicles. GM desires to stand in front of theirs.
Hi, If the fan comes with a capacitor, try and replace it first. It's only about $10 or $20 dollars. If that doesn't work, then replace the fan motor. The capacitor works by changing the phase angle of the current going into the motor where there is an additional winding that helps the motor start by giving it more torque, then the capacitor cuts out mechanically. Hopes this helps.
depends on the type motor that is driving the fan...if it is a split phase possible reasons are 1 bad start capacitor..2 bad start switch..3 bad bearings 4 bad motor ...if it is a permanent split capacitor. uld be the 1 run capacitor 2 bad bearings 3 bad motor...if it is a shaded pole..1 bad bearings....does it spin freely with the belt off or is it direct drive....the motor and fan should spin freely with the belt off if it is belt driven, all the other types of motor should spin freely if direct drive(fan mounted on motor shaft)...the motor will have all the information about it on the data plate on the motor
