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Lumpy On Acceleration


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#1 Gabbo_21

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Posted 05 November 2013 - 09:41 PM

Hi guts, other halves fusion has started to get very lumpy when you accelerate, harder you accelerate the lumpier it is.
Its a 1.4 petrol, ill ask before I start looking further into it.

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#2 Gabbo_21

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Posted 06 November 2013 - 08:23 AM

This is worse up to 2k rpm and appears ti settle a bit when it warms up.

#3 Lenny

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Posted 06 November 2013 - 09:33 AM

Fuel filter change I reckon mate,

Before changing it though,
Log on to eBay,
Purchase a bottle of "magic bullet"
Its like redex but won't strip oil from internal parts,
Run a tank of fuel through with magic bullet then change the fuel filter,

This will flush the contaminants from the tank in to the filter,
Where you will have the filter changed,
Clean system there after.

It may get worse on flushing with treatment but fuel filter change will leave it better than previously aswell as more economical,

Also clean out the induction filter box and change filter if required.

#4 Gabbo_21

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Posted 06 November 2013 - 06:02 PM

Is the fuel filter in the same location as the mk6 fiesta?

#5 Lenny

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Posted 06 November 2013 - 06:51 PM

Is the fuel filter in the same location as the mk6 fiesta?

Not sure mate,

#6 Gabbo_21

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Posted 07 November 2013 - 08:29 AM

Local parts shop had some of that magic bullet whih I chucked in then used her car for work yesterday. 260miles later tank pretty much empty I changed fuel filter under torch light last night, while its alot better still having the issue. No codes showing up on car either.

#7 Lenny

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Posted 07 November 2013 - 08:52 AM

Local parts shop had some of that magic bullet whih I chucked in then used her car for work yesterday. 260miles later tank pretty much empty I changed fuel filter under torch light last night, while its alot better still having the issue. No codes showing up on car either.

I've no idea after that mate,
I'm glad you have saw some level of improvement on changing the fuel filter but I thought sure it would have fixed 100% of the problem.
Hopefully some other members can advise on digging deeper,
Strange there's no error codes neither,

#8 Dan62

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Posted 07 November 2013 - 09:48 AM

.



#9 jeebowhite

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Posted 08 November 2013 - 09:05 AM

lump running could indicate the coil pack and HT leads need replacing. especially if when you put your foot down you start to lose power.



#10 Lenny

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Posted 08 November 2013 - 11:40 AM

lump running could indicate the coil pack and HT leads need replacing. especially if when you put your foot down you start to lose power.

+1
Number them before removing from the distributor cap
Or remove them one by one,

Get hold of a voltage meter,
Put positive to one end of the HT lead and negative to the other end
Voltage should carry through.

Or you could take this oppertuity to upgrade the HT leads to a performance brand and change the distributor cap.

#11 Gabbo_21

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Posted 08 November 2013 - 11:48 AM

Hope to have a good look over weekend.
As I said previously only does it under 2k rpm and when you put your foot down.

This morning engine management light came on so hoping for a error code or 2 now. Shame by bluetooth obd unit paired to my phone doesnt read it at wall.

Want to sort it so I cant get my focus back for the misses

#12 Dan62

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Posted 08 November 2013 - 01:20 PM

.



#13 Lenny

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Posted 08 November 2013 - 01:34 PM

Lenny, you are confusing voltage with resistance and as for distributors and distributor caps they were replaced by coil packs.

Ah rite sorry :)
I've been diesel for 3 years and my now petrol is old skool 80's technology
Forgive me for forgetting the rest of the world has moved on ;)

Bring back old skill baby!!
Down with EGR,ESP, DPF,SRS and ABS let the people drive it like they stole it,
That's why we pay insurance, :lol:

#14 Gabbo_21

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Posted 08 November 2013 - 09:08 PM

Fault code now showing misfire in 4 so I know where to be checking now :rolleyes:

#15 Gabbo_21

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Posted 09 November 2013 - 03:57 PM

After a good clean up of the plugs and new coil we are running nice and smooth again

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