Question about 2004 Volvo S40

1 Answer

Noise of 2004 Volvo s40 2.4i

Just noticed some driver-side noise under the hood (like big Fluorescent tubes) once I pushed the key to my car before starting. It starts once I push the key in (not even started the electric system or start the car). It disappears about 30 seconds after the car is turned off. I've uploaded a youtube video on the location of the noise: http://www.youtube.com/watch?v=CkhO8ULZD4M Any thoughts will be appreciated.

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  • Wes Cheng Jan 02, 2013

    Thanks guys! Just tried a few tricks:1. it didn't go away after pulling the distick; 2. my headlight doesn't have wipe:( 3. the battery was good enough to start the car. Here is the part that I located the buzz:https://plus.google.com/u/0/photos/10849...

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  • Volvo Master
  • 7,779 Answers

Cannot figure out what that part is, but it has a vacuum line connected. Therefore, it should not be functioning unless the engine is running. I would have to guess there is a wire crossed in the key cylinder. The presence of the key should activate the warning system and perhaps deactivate the security system. However, the engine system wiring comes in proximity to the warning wiring behind the ignition switch near the contact reel. It's possible you have a short in that area. I am posting access instructions from autozone.com.
CAUTION Models equipped with a Supplemental Restraint System (SRS), use an inflatable air bag. Whenever working near any of the SRS components, such as the impact sensors, the air bag module, steering column, and instrument panel, disable the SRS.

  1. Before servicing the vehicle, refer to the Precautions Section.
  2. Disconnect battery cable.
  3. Remove steering wheel and air bag module. Refer to Steering Wheel removal and installation.
  4. Remove steering column covers. Remove or disconnect the following:

    Screws from lower coverClip mounting between the upper and lower coversLower steering column coverUpper steering column cover
  5. Remove the contact reel:
    1. Disconnect the left connector.
    2. Remove the screws.
    3. Remove the contact reel.


      Fig. Removing the contact reel from steering column
      Removing the contact reel from steering column
  6. Remove the ignition switch:
    1. Disconnect the electrical connector.
    2. Remove the screws.
    3. Remove the ignition switch.


      Fig. Ignition switch removal
      Ignition switch removal
To install:
  1. Install the ignition switch:
    1. Position the ignition switch and tighten the screws.
    2. Connect the electrical connector.
  2. Install the contact reel. Tighten the M5 screws to 44 inch lbs. (5 Nm).
  3. Install the upper and lower steering column covers. Tighten the screws.
  4. Install the air bag and steering wheel. Refer to Steering Wheel removal and installation.
  5. Connect the negative battery cable.

Noise of 2004 Volvo s40 2.4i - 0900c152801c13e5-z51ydotzssbx3fkw4old43yo-4-0.gif

Posted on Jul 15, 2017

6 Suggested Answers

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Posted on Jan 02, 2017

  • 4 Answers

SOURCE: VOLVO S40 DOESNT START OCCASIONALLY

sounds like you need a new battery, it probably isnt running enought cranking amps to start your car, try a different battery and it should start fine

Posted on Dec 22, 2008

repairpal
  • 128 Answers

SOURCE: my car is buzzing or humming after i turn the car off

Do you have headlight wipers? If so, wiggle the wiper arm and see if the buzzing stops.

Posted on Feb 18, 2009

  • 1 Answer

SOURCE: whining noise under the hood only when I let up on

Pull the dipstick while it is making the noise, if it goes away it is pcv box, or nipple fitting under the intake

Posted on Jun 14, 2009

  • 60 Answers

SOURCE: 2006 volvo s40 50,000 mi.

The oil filter housing also houses the pcv system. What causes the noise is that there is a check valve in the pcv system that is supposed to regulate the pressure in the crankcase. The valve gets stuck and causes vacuum to build in the crankcase, which in turn sucks air wherever it can causing the noise, which is also why when you pull the dipstick it stops. This can also cause a check engine light with codes for fuel trim. The oil filter housing will need to be replaced. Good news is that Volvo extended the warranty on these to 100K miles so it should be free of charge at the dealer. One thing to watch for is oil leaks after the replacement from the camshaft seals. If air can get past a seal, usually oil can too. If the seals leak too long it can contaminate the timing belt and cause it to break, which causes a lot of damage.

Posted on Jan 06, 2010

  • 5 Answers

SOURCE: Volvo v50 2.0D with a cold start problem

mines got same problem

Posted on Jan 23, 2010

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