Jump to content
Do Not Sell My Personal Information


Sucking/gassy Sound When You Tap Accelerator...


GSM
 Share

Recommended Posts

Recognised this problem a few months ago, but was never really sure if it was cause for concern.

If I'm idling and tap the accelerator, you hear a short sucking/gas sound from the engine bay. It sounds as if the engine is strugglign to catch up with your acceleration command in that short time - after that time, it's normal.

It also happens if you're travelling at a steady speed and suddenly give it some gas - you hear the sound, and it feels as if the car/engine is lagging behind your command and takes a short while to compose itself before responding to your command and accelerating off.

I asked my dad (coach builder) and uncle (mechanic) and their first thought from my description of the noise/effect was turbo issues - but it's a 1.6L Petrol with no turbo to speak of. Is it an intake leak or a problem with the throttle body or something?

What's the best first place to look?!

Link to comment
Share on other sites


Perfectly normal , i took my old car in for exactly the same thing , they took me into the workshop and shown me other cars with the same noise , It's the intake.

Link to comment
Share on other sites

Oh okay, no problem.

Good to know it's normal. I take it's normal to suffer a bit of acceleration lag which coincides with the noise when you try to accelerate from a steady speed?

I'll give the hoses a check just to be sure then, but glad to know it's not a problem.

Link to comment
Share on other sites


Yes thats exactly the same as mine was

Fair enough. I'm happy with that then.

Anybody know what actually causes the sound then? Is it just the mechanism for the throttle actuator or something, since it's probably electronic, as Arthur said?

Link to comment
Share on other sites

  • 10 months later...

https://www.dropbox.com/s/27x2xs2le6stauk/2012-10-02%2020.30.34.mp4

Here's a video of the sound I'm talking about, just to make sure we're all on the same page. The video makes the sound slightly more pronounced than it is in real life though.

Hi GSM,

Do you still have the sound file? My Focus has recently started making a noise similar to that described in this thread.

Does anyone know what causes it, or how to fix it?

thanks in advance

Link to comment
Share on other sites

Hi GSM,

Do you still have the sound file? My Focus has recently started making a noise similar to that described in this thread.

Does anyone know what causes it, or how to fix it?

thanks in advance

Read from the top , we explained what the noise is , i had my car months before i noticed it , it's just the engine sucking in the air.

If your noise is different then parhaps record it for us to hear.

Link to comment
Share on other sites

  • 7 years later...

Hi

I recently bought a 2012 ford focus 1.6 petrol (125) with 57000 miles on the clock. This has the hissing sound and also seems lack power and burn fuel quickly. Didnt really notice it on the test drive but now its becoming more obvious. Anyone had a similar issue and able to advise me on my best actions to take? 

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

 Share

×
×
  • Create New...

Forums


News


Membership