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Old 04-08-2015, 09:36 AM   #1
lolbbq
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Default Ford focus 2008 automatic clunk from park to reverse

Hi all,

Back with some questions about the ford focus 2008 transmission.

First of all, is this a dual clutch transmission? and is this the 4F27E?

Lots of information about the US focus, not sure if its exactly the same in Australia.

Next, the problem. When moving from park to reverse there is a clunk sound coming from the front half of the car. Moving to reverse from any other gear is fine.
The clunk is the loudest when the reverse gear is selected after the car has been parked for awhile. The clunk is not too loud after it has been driven for awhile.
There is also always a slow hum/whine while the reverse transmission engages (about 1 second to engage). This can be heard almost all the time the car goes into reverse and from any gear.

I had replaced some fluid and the transmission fluid filter at the start of this year

Worried that my transmission is going to need a rebuild.

Thanks for reading!
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Old 04-08-2015, 09:39 AM   #2
FPV GTHO
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Default Re: Ford focus 2008 automatic clunk from park to reverse

Quite often cars will clunk coming out of park if when you stop, the first thing you do is put it in park before applying the handbrake or releasing the pedal brake. You end up with the weight of the car held by the transmission and not the handbrake.
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Old 04-08-2015, 10:39 AM   #3
lolbbq
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Default Re: Ford focus 2008 automatic clunk from park to reverse

The thing is, I was aware of that and very often I press the brakes put the car into neutral, pull the hand brakes, release the brakes to let the car rest on the hand brakes, then put the car into park. I do this deliberately to prevent wear on the parking pawls. I have never heard this clunk happen before too. This sound can also happen when coming to a stop (engine still running), put to park, then put to reverse.

Thanks for your input!
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Old 04-08-2015, 10:49 AM   #4
pursuit2359
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Default Re: Ford focus 2008 automatic clunk from park to reverse

Quote:
Originally Posted by lolbbq View Post
First of all, is this a dual clutch transmission? and is this the 4F27E?
2008 makes it an LT Focus - for the petrol engines, it was a standard automatic transmission with a torque converter. The Focus TDCi, however, had a dual clutch transmission.
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Old 04-08-2015, 12:52 PM   #5
marg99
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Default Re: Ford focus 2008 automatic clunk from park to reverse

early LT diesels only came with 6 spped manual transmission
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Old 04-08-2015, 03:01 PM   #6
DZFord
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Default Re: Ford focus 2008 automatic clunk from park to reverse

Yes, you have a 4F27E transmission, providing it is a petrol model, and now the diesel as pursuit2359 has pointed out
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Old 05-08-2015, 10:08 PM   #7
dazFX
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Default Re: Ford focus 2008 automatic clunk from park to reverse

Probably the engine mounts... there's a hidden one below the battery tray, the other two should be pretty easy to locate
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