Technical misfire heavy, basically the engine is shaking a good inch

Focus Owner · Jun 26, 2012

so when its idling, the engine is shaking what looks like a good inch.
shaking the inside of the car. especially when its at its worse.

was driving, down motorway 50mph all of a sudden lost power, down to 40 struggling to get any speed up, 1st second third 4th 5th, came off the motorway, downhill slip road struggled to reach 20mph.
let it cool down, struggled to restart, eventually running same lumpy idel
so drove it the last mile home, once i hit a hill struggled to reach 10mph
unable to move it once i was in street.

so far, removed each plug from coils, and each time it started and stalled 10 seconds later, and.
sprak blue going yellow at end.

also a massive whistle / wush of air going into throttle boddy at side of butterfly
seems like alot noisier than usual

car can start after a few turn overs, and rocks her world. gets worse warmer it gets

gonna look at all the spark plugs tomorrow,

fuelsystem i pushed the plunger down at end and got a 1 foot jet out with engine off

Ziggy122 · Jun 27, 2012

Unknown Being said:
so when its idling, the engine is shaking what looks like a good inch.
shaking the inside of the car. especially when its at its worse.

was driving, down motorway 50mph all of a sudden lost power, down to 40 struggling to get any speed up, 1st second third 4th 5th, came off the motorway, downhill slip road struggled to reach 20mph.
let it cool down, struggled to restart, eventually running same lumpy idel
so drove it the last mile home, once i hit a hill struggled to reach 10mph
unable to move it once i was in street.

so far, removed each plug from coils, and each time it started and stalled 10 seconds later, and.
sprak blue going yellow at end.

also a massive whistle / wush of air going into throttle boddy at side of butterfly
seems like alot noisier than usual

car can start after a few turn overs, and rocks her world. gets worse warmer it gets

gonna look at all the spark plugs tomorrow,

fuelsystem i pushed the plunger down at end and got a 1 foot jet out with engine off

that plundger is the fuel rail decomression valve, avoid pressing it in - as high pressure petrol will splurt out

So avoid doing it on diesels as well as they run alot higher pressure

Anyway - the shaking means its running rough
I'd suspect the usual HT/plug/Coil issue

start cheap - build way up

Ziggy

SouLz · Jun 27, 2012

I'd definatley suspect the coil packs are the issue here.

Had the same problem a couple of months ago, loss off all power up hill wouldnt go more than 10MPH in 1st gear.

One of my coil packs had failed causing it to run on 2 cylinders. Grab yourself a OBD2 Lead off ebay and get the free version of FiatECUScan.

Once connected to the engine browse to the checks section and you can tick to view both coil pack timing charging rates which clearly can show if one is failing.

s and b · Jun 27, 2012

sounds more involved than a plug/lead issue
more an inlet issue
valve issue
can you do a compression test?

Focus Owner · Jun 27, 2012

so today, started cheap, new plugs, every single lead snapped on removal and none in stock in leeds at the moment. so got to wait till tomorrow to find out.

had diagnostics on it today, but only checked fault codes none.

can't do a compression test gonna try leads tomorrow

Focus Owner · Jun 28, 2012

new leads still broken, the same.
coil, pack can produce a very large long sparks
tested each was sparking by removing the lead about 1 inch away and engine run on all, just not very well.
so inlet now?

Ziggy122 · Jun 29, 2012

Unknown Being said:
new leads still broken, the same.
coil, pack can produce a very large long sparks
tested each was sparking by removing the lead about 1 inch away and engine run on all, just not very well.
so inlet now?

Remove and Refit while fitting new inlet seals (cheap from local autofactors i would have thought)

Can be a swine tho get access todo an inlet tho

But if the Coils are strong sparks - the HT's and spark plugs are giving a strong spark (on the correct gap) then i'd be thinking more compression issues

i had cylinder 1 misfire - Plugs and leads were okay, but the compression was way down and it meant it ran rough till warm/hot

Ziggy

Focus Owner · Jun 29, 2012

i just eyed the gap up.
gets slightly worse when hot,

Focus Owner · Jul 1, 2012

HEAD GASKET again cylinders 3 and 4

Ziggy122 · Jul 1, 2012

Unknown Being said:
HEAD GASKET again cylinders 3 and 4

Was the Head Skimmed last time?

Is there damage to the head causing the leaking?

Is the Cylinder Block flat?

and Using a decent branded HG? some cheap HG's dont last long?
New Head Bolts again tho

Ziggy

Focus Owner · Jul 1, 2012

i belive so.
not seen the head yet, just rac diagnosis, from temperature of exhaust manifold
130 130 30 30 after a few mins of running
i will check when i get it appart
unsure if the last ones quality,

didnt have new headbolts, i just went with it at the time. £325 i got ripped off, heavily

Technical misfire heavy, basically the engine is shaking a good inch

Currently reading:
Technical misfire heavy, basically the engine is shaking a good inch

Focus Owner

is rather bored

Ziggy122

Patron member

SouLz

Patron member

s and b

Distinguished member

Focus Owner

is rather bored

Focus Owner

is rather bored

Ziggy122

Patron member

Focus Owner

is rather bored

Focus Owner

is rather bored

Ziggy122

Patron member

Focus Owner

is rather bored

Similar threads

Technical misfire heavy, basically the engine is shaking a good inch

Currently reading: Technical misfire heavy, basically the engine is shaking a good inch

is rather bored

Distinguished member

is rather bored

is rather bored

is rather bored

is rather bored

is rather bored

Similar threads

Currently reading:
Technical misfire heavy, basically the engine is shaking a good inch