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A faulty water pump will usually give you some indications.
1) Look for a coolant leak. Not always evident
2) Grasp the fan and see if it will wobble. A bad bearing can happen without the seal leaking.
3) Rattling sound could come from alternator, air conditioning compressor, tension idler, or power steering.
Use a mechanics stethescope or dowel sound rod to CAREFULLY listen to the different parts with the engine running. You will hear the faulty part.
Sounds like your fan belt is glazed or loose. At higher speeds the belt slips over waterpump and doesn't drive pump fast enough to circulate coolant. That would be first thing I would check...
Other possibilities: waterpump, blocked heater core, fan clutch.
when you put a new belt its ok for a while and its come back if all our problem started when alternator was change if everything is straith got the right poolly on it right amounth of groove. the poolly is worn off the belt seat to deap in the groov e it hapen with rebuilt alternator check it out pierre
I cant remember counter or clock wise but doesnt matter I believe it comes off counter clock. The easy way is if you have a air compressor and a air hammer. Take the flat bit place on large nut lightly hit the nut until it breaks free. If not take the largest wrench that fits good and safely tap it hard with a hammer , fast hard blow will break it loose. hope this helps
Well, if it's a 5.0L engine, remove the 4 bolts holding the fan to the pulley. If it's a 4.0L engine, you need to hold the waterpump pulley still and break the nut loose holding the fan clutch to the waterpump. If you don't have a wrench that big, try using a long chisel on the edge of the nut and hitting it very hard with a hammer to break it loose.
the belt cant just up and get too tight,,,did the belt break...a pully maybe locked up and caused it to burn the belt off....waterpumps and ac compressors are known to do that...if the new belt is gripping well it may keep the engine from turning over....