Question about 2001 GMC Sierra 2500HD

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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.

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  • GMC Master
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Check alternator output against specs. I suspect that the issue is with the belt not being properly lined up with the pulleys

Posted on Apr 02, 2017

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Posted on Jan 02, 2017

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SOURCE: Rattling & Squeaking coming from front of motor...

there is a vacuum line PCV that goes to the drivers valve cover the hose could be broken down and causing the noise could be other things but that is the first thing that comes to mind

Posted on Dec 30, 2008

mrgreenz
  • 962 Answers

SOURCE: serpentine belt slips off idler pulley

The A/C pully is supposed to spin freely until the AC is activated to run.. The cranshaft pully does not. Replace the tensioner pully. The belt has to fit in between the grooves on the pullys.

Posted on Apr 05, 2009

  • 41 Answers

SOURCE: I need to replace a serpentine belt on a 2001 GMC

it is decieving. if the tensioner has an extension of about two inches from the base, it takes a 15 mm to lift it, be easy, make sure the wrench is not going to touch anything as you release it after taking the belt off

Posted on Sep 18, 2009

  • 12 Answers

SOURCE: bad squeel. replaced tension pulley, alternator

The bearing are probally going bad in your compressor.

Posted on Jun 15, 2010

  • 2448 Answers

SOURCE: how do i take tension off serpentine belt on 2001

Look at the front of the tenisinor there is a squre slot in it a 3/8 ths extention for a 3/8 ths drive scoket wrench will fit in it. Put the extention on the wrench and put the end in the slot then push toword the engine this will move the tenisitoner and release the tention and then you will be able to remove the belt.

Posted on Jan 06, 2011

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HDo I remove and install an idler pulley on a 2005 Toyota Camry?


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1 Answer

There is a loud noise near the alternator and after it runs it smells like something burning could it be air pump it has fairly new water pump and new alternator


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.

Aug 30, 2014 | 1998 Ford Taurus

2 Answers

Serpentine belt blew due to belt wheel sheering off


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.

Dec 10, 2009 | 2004 Toyota Corolla

2 Answers

Engine made a weird noise when i started it & then the power steeing did not work & the battery light came on


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.

Oct 28, 2009 | 1998 Ford Explorer

1 Answer

How do you install an alternator 95 gmc sierra 1500


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

Jun 04, 2009 | 1995 GMC Sierra C1500

4 Answers

Serpentine belt popping off


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

May 10, 2009 | 1990 GMC Sierra

1 Answer

1996 Grand AM 3.1L serpentine belt replacement


Try this procedure.
0900823d8004ed44.jpg


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

0900823d8004ed45.jpg


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

0900823d8004ed46.jpg


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

0900823d8004ed47.jpg


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

0900823d8004ed48.jpg


Observe the belt routing diagram in the engine compartment.

0900823d8004ed49.jpg


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

0900823d8004ed4a.jpg

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.

0900823d8004ed74.jpg


Install the belt squarely in the grooves of each pulley.

0900823d8004ed75.jpg


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.

0900823d8004ed76.jpg


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

0900823d8004ed77.jpg


Tighten the idler or generator pulley fastener.

0900823d8004ed78.jpg


Start the engine and check the belt for proper operation.

Any more questions please ask. Good luck.

Jan 24, 2009 | 1996 Pontiac Grand Am

2 Answers

Serpentine belt installation


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.

Jan 10, 2009 | 1998 Ford Escort

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