Question about 1998 GMC Envoy

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My new blet wont stay tight on my 98 gmc envoy

I bought a new belt for my car, with a new tensioner pulley and idler pulley and the belt still will not stay tight, can anyone help me i dont know what is wrong with my car!!!!

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  • GMC Master
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I guess my first question would be are you sure you got the right replacement belt ? And are all of the pulleys on straight ?
Is the belt slipping, or coming off ?
Was the original belt giving you problems ?

Posted on Feb 19, 2014

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Posted on Jan 02, 2017

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c17hydro
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SOURCE: Where is the interior fuse panel on my 2002 gmc envoy? Thanks!

There are two fuse boxes on a 2002 Envoy One under the Rear seat on the drivers side and one under the hood on the drivers side.

Posted on Mar 19, 2009

c17hydro
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SOURCE: 1983 GMC G2500 Alternator Belt Diagram

REMOVAL & INSTALLATION Fig. 1: A gauge is recommended, but you can check belt tension with thumb pressure 89771g18.gif
Fig. 2: Loosen the component's mounting and adjusting bolts slightly to remove or adjust the belt(s) 89771g19.gif
Fig. 3: Push the component toward the engine and slip off the belt 89771g21.gif
Fig. 4: Slip the new belt over the pulley 89771g22.gif
Fig. 5: Pull outward on the component and tighten the mounting bolts 89771g23.gif
Fig. 6: Accessory mountings found on 6.2L diesel engines 89771g24.gif

  1. Loosen the driven accessory's pivot and mounting bolts.
  2. Move the accessory toward or away from the engine until the tension is correct. You can use a wooden hammer handle, or broomstick, as a lever, but do not use anything metallic, such as a prybar.
  3. Tighten the bolts and recheck the tension. If new belts have been installed, run the engine for a few minutes, then recheck and readjust as necessary. It is better to have belts too loose than too tight, because overtight belts will lead to bearing failure, particularly in the water pump and alternator. However, loose belts place an extremely high impact load on the driven component due to the whipping action of the belt.

Posted on Mar 20, 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

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2 Answers

1998 mitsubishi eclipse spyder. alternator belt squeels. no wiggle on any pullies. new belt tight. battery light stays on dim. parking brake stays on dim. what could be the problem


Belts should have a half inch of play on the longest distance between pulleys...when you push down on it with your finger...not too tight or too loose.

Check the tensioner pulley and others for wear in the bearings as they can wear and fall apart...

Check for shiny spots on the belts for wear..also, Usually a bad or failing idler pulley will produce a few symptoms that can notify you of an issue.

Visibly worn pulleys. One of the first symptoms of an issue with an idler pulley is visible wear on the pulley. ...
Belt squealing. ...Damaged bearing or pulley. Like the belt tensioner pulley, it's designed to remove that annoying belt vibration that's caused by excessive belt slack. The only difference between them is that the tensioner is mounted on an adjustable bolt, while the idler pulley isn't..... cheer's

Jan 28, 2018 | Mitsubishi Cars & Trucks

1 Answer

My new belt wont stay tight and i have all new pulleys, whats my problem


Recheck the routing of the belt because if you go the wrong way around a pulley the belt will be too long. Remember that with multi- groove pulleys the back of the belt goes around the idler pulley and the grooves go in the groves of the pulleys to be driven

Feb 19, 2014 | GMC Cars & Trucks

1 Answer

Belt won't stay on, 1989 gmc 3/4 ton pickup


Not having the tensioner pulley lined up would do it.
All of the pulleys have to be in a straight line and the tensioner has to keep the belt tight, especially with extra load from one of the accessories.

Feb 01, 2013 | 1989 GMC Sierra

1 Answer

My 2002 gmc envoy has a high screech when the engine is running. the sound remains the same regardless of the speed.


Sounds like a loose belt. Check your tensioner and your belt thickness. Your tensioner could be stuck or bad which would cause your belt to be a little loose and it would slide across the pulleys instead of roll with them and cause a screech sound. Same with belt thickness only the tensioner would be as tight as it gets but the belt would be just thin enough that it wouldn't work properly. Hope that helps you.

Jan 03, 2011 | 2002 GMC Envoy

1 Answer

My fan vibrates on my envoy, it looks like the housing that the serp. belt goes around is loose causing the fan to vibrate, but I can't figure out how to tighten the housing. I tried turning the big...


The tensioner pulley may be faulty. There should be a lot of tension on the pulley to keep the belt tight. If the tensioner can be moved easily, it should be replace.

Dec 21, 2010 | 2004 GMC Envoy

1 Answer

2004 gmc envoy. has a 6cyl and a serp belt. the center pully off set to the left (i think its a water pump) has a bad wobble and making a horrible noise. Not over heating and no leaks. should i just change...


If the fan is attached to it than it is the water pump making the noise and it will need to be replaced. If the fan clutch is not attached to it than it is either the idler pulley or the tensioner pulley. The tensioner is on the passenger side (left) of the front of the motor.

I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

Oct 07, 2010 | 2004 GMC Envoy

1 Answer

My 06 gmc envoy makes a squeking noise like belts do but my belts look fine and there prety well tight could it be any of my pilleys


check ytour idler pulley, that keeps tension on your belts. they usually go after a certain amount of miles from the stress on the
bearings.

Jun 09, 2010 | 2006 GMC Envoy

1 Answer

Serpentine belt routing


Here you go.. I looked up the same belt you did, it should be right.

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Feb 09, 2009 | 2001 BMW 330

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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