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A Clunk From Under Car After Starting And Reching 12 Mph


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#46 jg321

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Posted 12 December 2012 - 08:39 PM

Haha, quite an old thread that I've already commented on twice! Well, over a year and 11,000 miles on, I can safely say that mine has clunked every single time I've first driven forward after starting.

Interestingly, I've moved home since my last post, and now park in an underground car park, where I reverse out then drive around at low speed. No clunk till I hit the road outside and reach 12mph!

Sometimes its louder than others, especially when turning at the same time.

Nothing's fallen off yet (not even the DPF!!).

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#47 Stoney871

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Posted 12 December 2012 - 09:45 PM

It sounds like the ABS clunk that some get.
Nothing to worry about, it's a test thing.

#48 artscot79

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Posted 12 December 2012 - 11:22 PM

Abs all fords do it ide be worried if it didnt

#49 cragger89

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Posted 13 December 2012 - 03:38 PM

My mk2.5 1.6 zetec does this as did my mk1 1.8 LX.

My brothers mk1.5 zetec does this too, nothing to worry about as explained earlier.

#50 Goody

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Posted 05 July 2013 - 01:30 PM

Just traded my 07 C max 2.0L petrol Auto Zetec in for 10 reg the same model. Bought from non Ford dealer who specialises in ex Motability cars.

Took it back after 2 weeks with a fluid leak which turned out to be a pin hole in the radiator expansion tank which they replaced.

I also asked them to investigate a clunk from under the car after starting off and I wondered if it was a brake pad sticking and then releasing.

They checked and cleaned the brakes and road tested it and said they couldn't hear it now, I had taken mechanic out before to let him hear the noise.

When I collected it the noise was still there so listened carefully and it sounded a little like a solenoid operating so I thought it might be child safety locks or something coming on and I thought it happened at 15 mph.

Just did the google search and came upon the topic on this forum.

Had the 07 C Max for 4 years and it did not happen on that.

Wondering whether to tell the mechanic what I have found so that he could consider it if it happened again or would he be upset at having wasted his time stripping the brakes looking for the problem.



#51 gazsutton

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Posted 05 July 2013 - 10:49 PM


i have got a 1.8 as well and fyi i have got drums at the rear wheels. mine does not clunk at 12mph and it is a 56 reg. does that mean it only happens on the newer ones?


Mines 1.8 petrol 59plate with drums at the back and mine does it. Im surprised it has drums on the rear tbh

#52 TDCiST

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Posted 07 July 2013 - 03:44 PM

My 1.6 2010 tdci does this, but not all the time...

Same sound as when the TC kicks in so I always thought it was something to do with that. So the ABS/TC test makes sense!

#53 jeebowhite

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Posted 08 July 2013 - 11:12 AM

Its one of those tests where dependant on weather and environment, the test will barely be noticed, other times it could feel like you just ran over the neighbors cat...



#54 TDCiST

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Posted 08 July 2013 - 12:32 PM

Mine normally does it while accelerating and pulling out of my driveway...



#55 Maverick203

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Posted 08 February 2014 - 06:16 PM

i had my new focus since december '13 and have heard the 'grinding' noise twice once when i pulled out of a parking bay and again when i pulled off my drive on morning both times from cold start. i can only describe the noise as the sound you get when curbing alloys. It definately comes from passenger side. this thread has sort of put my mind at ease :unsure:



#56 jeebowhite

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Posted 11 February 2014 - 05:19 PM

Glad to be of service Maverick, its quite likely that the brakes are binding a little when it does the test, hence the additional grind as opposed to just a clunk!



#57 artscot79

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Posted 11 February 2014 - 06:32 PM

Its not an all the time thing sometimes it hapoens a lot of the times it doesnt mainly i get it when its slippery or wet outside the grind is likely the pads rubbing the surface rust off the disk you kind of answered it youreself by stating it happens when pulling away after the cars been left all night youll get that as long as its wet outside

When you park up the disk is hot or warm rain etc hits it and will turn to surface rust overnight the first few dab of the brakes scrapes it away and youve got shiny disks again

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