2004 gmc sierra 1500 5.3 105 amp alternator, new serpentine, new idler pulley, new tensioner, new alternator and new water pump (old on was weeping). Alternator seems to have excess load on it as the belt slips on alternator causing belt to squeel and deposits fine black dust from belt onto front of alternator. I replaced the alternator again and another new belt and the belt is still squeeling. It seems as the alternator has an excess load on it as the squeeling increases when lights and blower motor are turned on. Everything on truck is stock except the radio has been replaced. Have checked all grounds, cables and connections and all are good.

How to replace drive belt tensioner Toyota Camry - YouTube

? 4:26
https://www.youtube.com/watch?v=gfSJvN-CE2E
Feb 22, 2013 - Uploaded by Fix It Angel
2002 2003 2004 2005 2006 2007 2008 2009 Toyota Camry. Engine, 4 cylinder, 2.4L, 2AZ-FE. 2004 Toyota ...

Idler Pulley, How to replace (EASY and CHEAP) - YouTube

? 4:56
https://www.youtube.com/watch?v=axAltpW8wR4
Nov 2, 2013 - Uploaded by ChrisFix
Idler pulley squeak? Learn how to fix a squeaky pulley in your car. The serpentine belt in your car powers the ...

2007 Camry Serpentine Belt Replace - 4 Cyl, 2.4 liter ...

? 4:21
https://www.youtube.com/watch?v=ejhyCrh96a8
Jan 13, 2013 - Uploaded by Flyin Brian
I show you step-by step how to get the old belt off and install a new ... ... Water pump replacement 2007 Toyota ...

Check these......................


Diagnosing Belt Noise squeak or squeal on Serpentine Belt

How to Fix Squeaky Belt figure out where the squeak is coming from

Ever check the water pump?

i would check your tensioner and idler pulley. you may have a bad bearing and its dragging the belt causing friction which then creates the burning belt smell. remove your serpentine belt and spin all pulleys by hand p/s, alternator, water pump, tensioner, idler, a/c. if the pulley is stiff or feels rough then thats the component at fault and you would need to replace that certain component and its also best practice to replace your belt now too.

with the belt off,try to spin each and every pulley,and water pump,alternator,idler pulley,automatic belt tensioner pulley,sounds like one froze up and took the belt out.

the cerpenteen belt that runs the fan, powersteering pump, alternator(battery charger), and water pump broke. if the belt just broke from being old, just replace it. but check all of the pullys to make sure they spin relitivly easy. if you find one that dosen't spin easily, it could need replaced too.

1] disconnect the positive battery cable. 2] remove the serpentine belt.  you need a socket wrench to remove the tension from the idler arm pulley. 3]disconnect the battery wire from the alternator, and unclip the other smaller wire from the other side of the alternator. 4] remove the bolts that hold the alternator to the engine. 5]install the new one in the reverse order hope this helps

ONE OF THE PULLEYS ARE WORN OUT AND NOT ALIGNED PROPERLY WITH THE OTHERS. LOOK AT THE TENSIONER AND IDLER PULLEYS. ONE OF THESE COULD BE THE CAUSE. REMOVE THE SERPENTINE BELT AND ROTATE THE PULLEYS BY HAND TO SEE WHICH ONE IS EITHER SQUEAKING OR LOOSE ON ITS BEARING. REPLACE THE BAD ONE AND YOU SHOULD BE ALL SET. HOPE THIS HELPS. PLEASE KEEP ME POSTED. THANKS FOR AN HONEST RATING AND FOR USING FIX-YA. GOOD LUCK

Try this procedure.



To replace a worn belt, locate the idler or generator pulley.




Loosen the hold-down fastener for the idler or generator pulley.




Pry the idler or generator pulley inward to release the belt tension and remove the belt.




Match the old belt up for size with the new replacement belt.




Observe the belt routing diagram in the engine compartment.




Install the new belt over each of the drive pulleys. Often the manufacturer recommends a sequence for feeding the belt around the pulleys.



Art courtesy of Delmar - Thomson Learning.
Pry out the idler or generator pulley to put tension on the belt.
Pry out the idler or generator pulley to put tension on the belt.




Install the belt squarely in the grooves of each pulley.




Before adjusting belt tension, check for proper pulley alignment. This is especially critical with serpentine belts. Measure the belt deflection in its longest span. If a belt tension gauge is available, use it and compare the tension to specifications.
If a belt is too tight, wear to bearings for the water pump, alternator, and engine crankshaft can result.
Some late-model Chrysler engines require a torque reading to be taken when tension is applied to the generator drive belt. This is especially important on the longer, multiribbed V-belts.




Pry the idler or generator pulley to adjust the belt to specifications.




Tighten the idler or generator pulley fastener.




Start the engine and check the belt for proper operation.

Any more questions please ask. Good luck.

Normal 0 false false false MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman"; mso-ansi-language:#0400; mso-fareast-language:#0400; mso-bidi-language:#0400;} 1 To replace a worn belt, locate the idler or generator pulley.
2 Loosen the hold-down fastener for the idler or generator pulley.
3 Pry the idler or generator pulley inward to release the belt tension and remove the belt.
4 Match the old belt up for size with the new replacement belt.
5 Observe the belt routing diagram in the engine compartment.
6 Install the new belt over each of the drive pulleys. Often the manufacturer recommends a sequence for feeding the belt around the pulleys.
7 Pry out the idler or generator pulley to put tension on the belt.
8 Pry out the idler or generator pulley to put tension on the belt.
9 Install the belt squarely in the grooves of each pulley.
10 Before adjusting belt tension, check for proper pulley alignment. This is especially critical with serpentine belts. Measure the belt deflection in its longest span. If a belt tension gauge is available, use it and compare the tension to specifications.
”If a belt is too tight, wear to bearings for the water pump, alternator, and engine crankshaft can result.”
11 Pry the idler or generator pulley to adjust the belt to specifications.
12 Tighten the idler or generator pulley fastener.
13 Start the engine and check the belt for proper operation.