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New serpentine belt won't tighten after new alternator replacement, why?

2005 BMW 325 Ci, belt has about an inch of slack

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  • BMW Master
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Wrong belt to long.

Posted on May 03, 2017

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Posted on Jan 02, 2017

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2 Answers

Belt slip


Tighten your serpentine belt.

Apr 12, 2014 | Chevrolet Uplander Cars & Trucks

1 Answer

I cant figure this out. I have a 1995 BMW 325i. I am trying to take off the fan/serpentine belt. How would i do that?


cansmo_7.jpgcansmo_163.gifTurn slowly clockwise you will need to compress the tensioner when you have enough slack remove belt , To install do the order in reverse

Aug 29, 2011 | 2003 BMW 325

1 Answer

I need the alternator / fan serpentine belt diagram for my 2002 bmw 325I. Thankyou


Look up your car on RealOEM.com. It shows the belt shape when installed.
Good that you asked. I understand that it is physically possible to get it to fit with the alternator spinning backwards.
I presume that you just replaced belts and pulleys. A 2003 would be about due.
Be glad you don't have a 330 rather than a 325. The 330 is just enough tighter space to make the job about four times as difficult. (I have both).

Mar 02, 2011 | 2003 BMW 325

1 Answer

Need to change the alternator on a 2001 sunfire,2.4 engine,how do i do that?


Things You'll Need:
  • Battery terminal wrench
  • Serpentine belt removal tool
  • 3/8-inch ratchet
  • 3/8-inch metric socket set
  1. Turn off the engine and place the transmission in park (automatic) or first gear (manual). Engage the parking brake and open the hood. Disconnect the negative cable from the battery terminal using the battery terminal wrench.

  2. Remove the serpentine belt by inserting the end of the serpentine belt tool into the square hole on the belt tensioner and rotating the removal tool clockwise. Unplug the alternator's electrical connector. Remove the bolt holding the positive voltage cable to the alternator using a 3/8-inch ratchet and a metric socket. Remove the positive voltage cable from the alternator.

  3. Remove the alternator bracket bolts using a metric socket connected to a 3/8-inch ratchet. Remove the alternator from the car. Place the new alternator in the mounting brackets and reinstall the mounting bolts using a 3/8-inch ratchet connected to a metric socket.

  4. Reinstall the positive voltage cable on the alternator and tighten the retaining nut using a 3/8-inch ratchet and a metric socket. Plug in the alternator's electrical connector. Compress the serpentine belt tensioner using the serpentine belt tool. Reinstall the serpentine belt according to the belt-routing diagram located under the hood.

  5. Reconnect the negative cable to the battery using the battery terminal wrench. Start the engine and verify that the alternator works.

Oct 29, 2010 | 2001 Pontiac Sunfire

1 Answer

Bmw 325 ci belts diagram


Easiest way is to look at a friends car and copy his routing sticker, or go to the dealership and request a new belt routing sticker for under the hood of your car.

Oct 06, 2010 | 2003 BMW 325

1 Answer

Cant get serpentine belt on my truck


Try putting the belt on the alternator then slide it under the idler pulley last.

Feb 23, 2010 | 1994 Ford Ranger Supercab

2 Answers

How to loosen tension release for fan-belt replacement


You may need that tool I cant think of the correct name rigth now but usually its leftie loose righty tighty! How doesw your tension release look?

Jan 15, 2010 | 2001 Jeep Grand Cherokee

1 Answer

325 ci bmw belt diagram


The belt diagrams are usually on the underside of the hood or on the crossmember at the front of the engine bay.

Regards,
matt

Sep 15, 2009 | 2003 BMW 325

2 Answers

2005 kia Sedona


It's normal for belts to loosen up a little after installation. I'd check the belt and re-tighten until there's no slack. A slipping belt would certainly cause the issue you have. Hope this answers your question. Best of luck!
Greg

Jun 01, 2009 | 2005 Kia Sedona

1 Answer

What is the quickest and easist way to replace the alternator and put the serpintine belt back on?


here is step by step instruction on how to replace you alternator. please do not forget to rate and comment abotu your experience with fixya today 3.8L (VIN 1) Supercharged Engines
  1. Disconnect the negative battery cable.
  2. Remove the serpentine drive belt from the alternator, as outlined in Section 1 of this manual.
  3. Detach the electrical connections from the alternator.
  4. Unfasten the alternator mounting bolt and mounting bolt and nut.
  5. Remove the alternator from the vehicle.
    To install:
    1. Position the alternator in the vehicle and secure with the mounting nut and bolt. Tighten to 5 ft. lbs. (8 Nm).
    2. Install the remaining mounting bolt and tighten to 5 ft. lbs. (8 Nm).
    3. Attach the alternator connections. Tighten the output terminal nut to 66 inch lbs. (7.5 Nm).
    4. Install the serpentine drive belt.
    5. Connect the negative battery cable.
3.8L (VIN 3, C & L) Engines
  1. Disconnect the negative battery cable.
  2. Using a suitable breaker bar or ratchet, rotate the tensioner counterclockwise, then remove the serpentine drive belt. For more information regarding serpentine drive belt removal, please refer to Section 1 of this manual.
  3. If necessary, remove the fuel rail cover.
  4. While supporting the alternator, remove the mounting bolts.
  5. Tilt the alternator forward, then label and detach the electrical connectors.
  6. Remove the alternator from the vehicle.
  7. To install:
    1. Support the alternator in position, then install the alternator.
    2. Install the mounting bolts and tighten to 1 ft. lbs. (11 Nm).
    3. Attach the electrical connectors at the back of the alternator. Tighten the alternator output terminal nut to 93 inch lbs. (10.5 Nm) for 1987-92 vehicles, or to 66 inch lbs. (7.5 Nm) for 1993-94 vehicles.
    4. If removed, install the fuel rail cover.
    5. Install the serpentine drive belt and rotate the tensioner into position.
    6. Connect the negative battery cable.

Apr 16, 2009 | 1992 Buick LeSabre

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