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Anonymous Posted on Aug 25, 2017
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Loud rattling in engine compartment

My car makes the God awfulest racket coming from what I think is the serpentine belt tensioner. It is best described as a rattle when it is the loudest is when the car starts. The other day when my battery died I jumped it and when it started a "rust cloud" came from the belt. So my question is do I seem to be right and on a scale of 1-10, 10 most difficult how hard is this repair.

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5 Related Answers

Anonymous

  • 1 Answer
  • Posted on Oct 22, 2008

SOURCE: i have a 2003 focus

Replace the motor mount located next to the timing belt enclosure.

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Anonymous

  • 32 Answers
  • Posted on Dec 06, 2008

SOURCE: 2000 ranger rattling noise in engine compartment

Check the heat shield on the catylitic converter,exhaust manifold. Kev-Mn

Anonymous

  • 1990 Answers
  • Posted on Jan 22, 2009

SOURCE: Oil Pressure Gauge/Engine rattle 2000 Ford Explorer 4.0 6cyc 4wd

Your Oil Pump is Out and will need to be Replaced. This is not a Job that you would want to attempt on your Own unless you have been a Mechanic. Trust Me. Been an ASE Certified Mechanic for 35 Years.

Anonymous

  • 17 Answers
  • Posted on Jun 12, 2009

SOURCE: 2002 mustang makes rattling sound when accelerating...

Possible bad motor mount(s) --only thumps or rattles when power is going to the wheels.

Anonymous

  • 138 Answers
  • Posted on Nov 03, 2009

SOURCE: I have a 2001 Ford ranger supercab that makes

4.0l's are notorious for valve rattle on cold start-up. There is really nothing you can do to make it go away short of completely replacing the valve train in the top end, and that isn't a permanent fix. It's is an top end oiling issue from the factory. Just don't race your engine on cold start-up until the rattle stops.

The rattle in the transmission sounds to me to be more of a loose dust shield/heat shield around the transmission or exhaust than a mechanical issue.

Testimonial: "Thanks for the info. It helps set my mind at ease about the niose. Thanks again. God bless"

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Related Questions:

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Mechanic says the noise my engine is making is from the Timing Chain. Is my mechanic right? Can the timing chain really be off track to cause the rattling noise I'm hearing?
Could be the noise for the chain would be around the belts. It would be a rattle type noise. How many miles on vehicle
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Jul 28, 2016 • 2008 Lexus IS 250
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I have a 96 Ford Taurus and when I turn the engine on, and while accelerating there's a squeaking sound.
Well,a drive belt needs to be replaced every 50,000 mi. or so,and a weak tensioner can allow slack which causes sqeak even if the belt is good.
The idler pulley on those is easy to replace also. If the tensioner isn't holding the drive belt very tighly,replace it and the belt.
Auto Zone will let you put down a deposit and borrow a tool to work the tensioner so the belt can be easily removed. don-ohio
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Dec 18, 2012 • 1996 Ford Taurus
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How simple is it to change a alternator belt on subaru svx?
  1. Removing the Serpentine Belt
    • 1 Park your Subaru on a level surface and open the hood.
    • 2 Disconnect the ground (black) battery cable using a wrench. This will prevent the cooling fan from activating.
    • 3 Locate the serpentine belt routing diagram in your engine compartment and compare it to the actual routing of the installed belt. Make sure the routing on the label matches the actual routing. If they do not match or there is no label, note the actual routing on a piece of paper for later reference.
    • 4 Locate the belt tensioner pulley on your Subaru model. If the tensioner is equipped with a squared hole, use a large breaker bar with a 1/2-inch (13 mm) drive. Otherwise, use a ratchet and socket of the proper size on the tensioner pulley center bolt.
    • 5 Rotate the tensioner pulley away from the belt to release the belt tension.
    • 6 Pull the belt off of one of the pulleys and slowly release the tensioner pulley back into position. Do not let the tensioner pulley snap back or you may damage an internal component.
    • 7 Finish removing the serpentine belt from the rest of the pulleys and the engine compartment.
    Installing the New Serpentine Belt
    • 1 Match the old belt to the new one and make sure they are of the same length and configuration. It is normal for the new belt to be slightly shorter since the old one has been stretched through use.
    • 2 Route the new serpentine belt through all of the pulleys except the tensioner pulley. Use the diagram on the engine compartment or your notes, as a reference, to properly route the belt.
    • 3 Insert the large breaker bar into the square hole or the ratchet and socket into the tensioner pulley center bolt.
    • 4 Rotate the tensioner pulley in the same direction you did to release the belt tension.
    • 5 Slide the serpentine belt onto the tensioner pulley.
    • 6 Release the tensioner pulley back into position.
    • 7 Look at all the pulleys and make sure the serpentine belt is properly seated on each one. Otherwise, release the belt tension and adjust the belt.
    • 8 Connect the ground (black) battery cable using the wrench.
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Oct 18, 2011 • 1992 Subaru SVX
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Serpentine belt diagram for a 2003 Chevy unpalatable 4.3
Pop the hood of the car and locate the serpentine belt routing diagram. The diagram on the 2003 Chevrolet Impala is on top of the fan shroud. The diagram will be a picture of all of the accessory pulleys and how the serpentine belt is routed among the pulleys. This diagram will give you the exact direction for routing the new belt onto the pulleys. If you cannot find a serpentine belt routing diagram, take a notepad and pen and draw out the exact routing diagram of the old belt across the pulleys.

  • 2 Locate the serpentine belt tensioner. It is located below the alternator on the left front side of the engine. The tensioner on the 3.4 liter, 3.5 liter and the 3.9 liter engines will require a 3/8 ratchet to release the belt tensioner. The 3.8 liter engine will require a ratchet and a 15 mm socket for the belt tensioner. Rotate the belt tensioner clockwise to loosen and remove the belt from the belt tensioner pulley.
  • 3 Slide the old belt from the belt tensioner pulley. Remove the belt from the remaining pulleys and pull the belt from the engine compartment.
  • 4 Route the new belt across the crankshaft pulley first. The crankshaft pulley is the big pulley on the bottom of the engine in the center. Then route the serpentine belt across the remaining pulleys as directed by the serpentine belt routing diagram. Leave the belt tensioner pulley for last.
  • 5 Rotate the belt tensioner clockwise again to relieve the tension and slide the new belt across the top of the belt tensioner pulley. Release the belt tensioner and the belt will tighten up as the tensioner applies pressure to the belt. Make sure the new belt is properly seated in all the pulleys.
  • 6 Crank the engine and inspect the belt again to make sure that it stays seated in the pulleys.

    • Read more: How to Replace a Serpentine Belt on a 2003 Chevrolet Impala ' eHow.co.uk http://www.ehow.co.uk/how_6120665_replace-belt-2003-chevrolet-impala.html#ixzz1Yi6QLAjb
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    Sep 21, 2011 • 2003 Chevrolet Impala
    1helpful
    1answer

    I just changed my serpentine belt on my 2002 Buick LeSabre. (The old one split in half). Everything seems to be lined up properly but when I started the car to check the alignment, I heard a loud...
    remove the belt and check all the pulleys that the belt drives. sound as if one of the bearings in the pulley is seized making the belt squeal and smoke.
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    Jul 17, 2011 • 2002 Buick LeSabre
    1helpful
    2answers

    How to change serpentine belt
    on the engine compartment area up front, in area of radiator should have a diagram explaining the procedure of replacing the serpentine belt, if not , then look for the belt tensioner, it should be on the passenger side in front of the engine, you will need a 13- 15" metric socket with a 3/8"rachet to release the tensioner , in order to get the belt off, "look at the belt , very closely before removing it, in order to make sure you get it back on right. start from the bottom, and work your way up, then , when you get to the tensioner, pull back on it and allow the belt to come in contact with the tensioner pulley, then while releasing the tensioner pulley against the belt, and then look at the whole belt to make sure it is on right , before you start the vehicle.
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    Jun 16, 2011 • Pontiac Sunfire Cars & Trucks
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    I started my car on my lunch break and heard a terrible noise coming from engine compartment I looked under the hood and noticed that the serpintine belt wasn't spinning and was very loose I tried pulling...
    the serpentine belt is kept tight by a spring loaded tensioner, if the belt is off, use a wrench to see if the tensioner is still spring adjustable if it dont move then the tensioner is faulty, if the tensioner is good then look for a/c compressor bearing bad causing belt to ride off pulleys, or possibly just a bad belt
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    Dec 15, 2010 • 2003 Ford Focus
    0helpful
    1answer

    How do i release the tension belt ... cant seem to find bolt being referred to in other docs
    Here's the procedure on how to release and replace the tension belt of your car.

    Step 1
  • Open the hood on the Volvo S-60 and find the serpentine-belt routing diagram. The diagram should be attached to the top of the fan shroud that covers the radiator. If not, draw out the exact routing method of the serpentine belt around each pulley with a pen and a piece of paper.
  • Step 2 Locate the serpentine-belt tensioner that is in the very center of the engine. The tensioner will have a square bolt head in the center of the tensioner pulley.
  • Step 3 Slide the open end of the 5/8-wrench onto the square bolt head in the center of the belt-tensioner pulley. Turn the tensioner pulley counterclockwise and slide the serpentine belt off of the tensioner pulley.
  • Step 4 Remove the serpentine belt from the other pulleys and pull the belt out of the engine compartment.
  • Step 5 Slide the new serpentine belt into the engine compartment and around the crankshaft pulley.
  • Step 6 Route the new serpentine belt around each pulley. Turn the belt-tensioner pulley counterclockwise again and slide the serpentine belt around the tensioner pulley. Release the tensioner and it will tighten the belt around the pulleys. Look over the belt to ensure that it is inside of each pulley.
  • Step 7 Crank the S-60 and look over the serpentine belt with the motor running. Let the engine run for about one minute and shut the engine off. Close the hood.
    • Read full answer
    Aug 12, 2010 • 2001 Volvo S60
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    Battery light turned on. Lost power steering and AC.
    You broke your serpatine belt. Needs replacing. It's a $50ish part and easy to do if you have a diagram under the hood of how the belt fits. But if it was "rattling" for a couple of weeks take it in for crying out loud. Let the mechanic look it over to make sure your lack of vechile care didn't destroy anything under the hood.....
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    Jun 12, 2010 • 1998 Saturn SC
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    Tension pully is loose making the belt rattle
    It sounds like you have a broken serpentine belt tensioner. The tensioner should always be tight, it is spring loaded and you would have had to release the tension on it to have put the new belt on.Depending on what engine that is in yours, this could be an easy fix or a hard fix. The tensioner on a 2.2L is made into a large plate bracket that is attached to the front on the engine and several other items have to come off to replace it.The tensioner on the 3.1L v6 is smaller and has one bolt that holds it on.Either one is available at the local auto parts store.

    Hope this helps
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    Apr 20, 2009 • 1997 Chevrolet Cavalier
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