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Sudden Loss Of Power Whilst Driving On The M6

ford focus diesel 1.6 tdci 2008 sudden loss of power no acceleration

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#1 Deltamansam

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Posted 11 October 2013 - 10:37 AM

Good Morning Everyone,

 

I own a ford focus titanium 1.6tdci 58 reg. It has done 91k miles.

 

The car has been running fine until recently...

If i accelerated off the line in gear one with roughly 25-30k revs the engine would cut out. I.e. putting my foot on the accelerator would do nothing. A sudden loss of power with no engine warning lights coming on. If i switched off the engine and immediately turned it back on the car would start again.

I replaced the fuel filter and air inlet filter as good measure. The problem was then eradicated. It no longer loses power at lower speeds. I also took it for a service as they have the ability to flush through the system. The oil was also replaced with Castrol oil and engine coolant topped up.

 

However, 2 days ago whilst driving on the m6 in the 3rd lane doing around 70mph the same thing happened and i had to drive across to the hard shoulder with what momentum the car had left. I then started the car again and it worked and i drove at 60 all the way home

 

From a visual inspection of the car i've noticed #2 injector has caused the inlet manifold around it to melt slightly. I believe the HP pipe was causing the leak, i have torqued the nut and no more leaks. I'm averaging around 58mpg which leads me to believe that this isn't causing any problems.

 

From revving the car i can see no signs of any leaks or any abnormalities.

I have also used the ford diagnostic tool and my car has no fault codes

The turbo seems to be working fine and kicks in as it should.

I'm not entirely sure what the problem could be so i thought id post here to see if anyone else has had this issue before i start taking off components. I.e. wheres the best place to start

 

If any more information would be helpful please ask.

 

Many Thanks in advance.



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#2 jeebowhite

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Posted 11 October 2013 - 11:41 AM

Sounds like a fuel related issue,. I had this problem in the winter, long story short, air was getting into the fuel lines via damaged fuel filter housing. Air was being injected and this caused a loss of power, followed very soon after by a loss completely and the engine cutting out. A New fuel filter / housing had to be installed to resolve the issue.



#3 Deltamansam

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Posted 12 October 2013 - 10:49 AM

Thanks for the response.

I've ordered a new housing and will fit when it arrives.

I'll report back here with the result.

 

Cheers.



#4 jeebowhite

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Posted 12 October 2013 - 09:24 PM

Hope it helps,as I say mine was my own experience...

#5 Deltamansam

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Posted 13 October 2013 - 11:07 AM

Just looking at ordering it now.

Any recommendations as to which one as they vary between £10-40. 

Would it matter so much if i went for a cheap one, or is something like this worth going all out on?



#6 jeebowhite

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Posted 14 October 2013 - 02:10 PM

I would say middle ground, you dont need a designer label, but I personally wouldn't buy bobs own brand either.



#7 Deltamansam

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Posted 16 October 2013 - 12:23 PM

Hi thanks

I brought a Crosland Premium Fuel Filter.

Looking to replace it now. I've also brought a 6mm fuel primer bulb to bleed the air from the system. I will do this from the outlet of the fuel filter.

However i've been advised to fill the fuel filter with diesel first.

Any advice on how to do this?



#8 jeebowhite

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Posted 16 October 2013 - 12:57 PM

using a pipette / preferably a large bulb one! fill the filter with diesel to the brim, or dunk the filter into a bucket of diesel, then syphon off the air.

 

This basically helps to prime it as your reducing as much air as possible from being in the filter, making priming easier and your car more likely to start. But be warned, even if you remove 99% of the air, it can still take a few goes and a fair few minutes to get the car started. I would suggest if you have one, keep a manual battery charger to hand, try to start a few times, then quick charge the battery, then try again, as you could easily flatten the battery just priming it!



#9 Deltamansam

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Posted 16 October 2013 - 03:11 PM

Okay i ordered http://www.ebay.co.u...1772984&afsrc=1 for priming of the system.

I have a pipette, so I will use that and i also have diesel spare :).

I'll attempt it tomorrow and report back here!

Cheers.



#10 jeebowhite

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Posted 16 October 2013 - 04:03 PM

You would have to be careful, not sure if you saw this line:

 

Suitable for Carburettor and low pressure fuel systems



#11 Deltamansam

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Posted 16 October 2013 - 04:20 PM

I did see that but saw that item on here:

http://www.fordowner...-tdci-bleeding/

That's why i went for it.

Was just thinking would priming it with that or filling it with diesel be better?

Or do both?



#12 jeebowhite

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Posted 17 October 2013 - 10:04 AM

Both is the best bet, it means your reducing the risk much further!



#13 Deltamansam

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Posted 17 October 2013 - 09:34 PM

Job Complete! :)

 

A big thanks to jeebowhite for his advice.

 

Heres my advice after completing the job:

 

When completing the job do not fill the filter full of fuel. Instead stick to strictly using the hand-held vacuum pump. I used the one from the previous post, however you do need PTFE tape on the hand-held vacuum pump in order to create the seal with the outlet of the filter. Once fuel is being discharged from said pump without signs of any bubbles the car will then start. (Did on my 2nd attempt) Make sure you leave 30 seconds between each start.

 

I tried filling the filter and then starting to no avail. I then used the full filter with the vacuum pump. Again to no avail.

I then emptied the filter and created a vacuum which forced fuel through the outlet of the fuel filter and the car started second time. It started first time, then the engine cut out after 10 seconds. It then started 2nd time.

 

This worked for me, it may not work for you and do take care as the hand-held vacuum pump i used is for low pressure systems.



#14 jeebowhite

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Posted 18 October 2013 - 02:18 PM

Well done there Samuel, if you happened to take any pictures do share them! - so the car is no longer cutting out on you?

 

And to confirm, you just applied the bulb like a "man in the middle" of the fuel line and the filter, and then squeezed it until fuel came out of the other side of the filter?



#15 Deltamansam

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Posted 26 October 2013 - 11:10 AM

Hi no pictures unfortunately,

 

Yes i put the bulb on the outlet to the fuel filter until i drew bubble free fuel. Bubble free fuel being vital. The bulb acts as non-return valve so the fuel will spray out the opposite end and air won't be able to get in. As said before PTFE tape is essential to make sure the bulb is sealed to the outlet of the filter to ensure you can draw a vacuum, thus being able to suck the fuel through the line. After 2 starts the engine worked.

 

Since replacing the fuel filter the engine hasn't cut out once.

A very simple job which could of turned out to be a nightmare without the bulb. That's Indispensable.



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Also tagged with one or more of these keywords: ford focus, diesel, 1.6, tdci, 2008, sudden loss of power, no acceleration

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