Knocking Underneath

[marinabrid]

hi all,

just been out with wife and kids. i sat in 2nd row seat kids in back.

i noticed under the floor where i was a knocking sound on and off like something was loose. i just been out alone in it and it dont seem to do it .

i checked all the mounts, exhaust etc and find nothing amiss.

any ideas anyone ?????? anything prone to wear under the floorboards.

[Guest vr6galaxy]

The fuel tank is known for the odd noise or two! sounds like a dull thud from under the floor! espcially where you were sitting as you were right above it

[seatkid]

If it knocks everytime you go over a bump then 90% likely its one or both ARB (anti roll bar) links. Common fault - do a search and there is everything there is to know about it on this forum. They are cheap and easy to DIY.

[Guest dmc]

if it sounds like its coming from the middle under the car,look at the exhaust heatshield above the center silencer,on the left side of the car.

 

its commen for this to bend downwards and touch the top of the silencer.

 

you could try wobbling the exhaust at the tailpipe to test it.

[Masked Marauder]

The fuel tank thud tends to be about a 3rd of a tank of fuel btw.

[Guest cliftonj]

You seem to have good advice from others here, but when we had a knocking underneath, my wife took our Galaxy to Mr Ford. An engineer checked it out, found a loose mounting or similar (my wife wasn't exactly sure...!) and fixed it for nothing. All done in about 45 minutes. It maybe helped that she had the kids with her.

Worth trying your local dealer to at least assess it.

[marinabrid]

The fuel tank thud tends to be about a 3rd of a tank of fuel btw.

whats btw its probably obvious to all but me?

[Masked Marauder]

By The Way

[RussT]

I had something similar a couple of years ago.

I could not work out where it was coming from and it turned out to be a broken rear engine mounting.

A local garage realised what it was straight away, just by rocking the engine.

[marinabrid]

its just occured to me that when the tank was low on fuel the noise wasnt apparent now ive filled it 3/4 and it knock knock knockin ! i sha;ll keep me ears open and eye on the fuel level. thanks all.