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Focus 1.4 Cl


rick76
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Hi all am new just wondered if anyone can give me pointers am going to look a ford focus 1.4 CL the car has a misfire on acceleration it has done 176k miles lots of service history. Am not really clued up on ford's could I be buying big problems or a cheap fix. apart from the misfire is there anything else I should look for sorry about the questions.

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Hi

First thing i would check is the condition of the ignition leads.

If they appear cracked or worn replace them.

If you have extensive service history check when the Spark Plugs were changed.

If they have not been changed for a couple of years consider changing those too.

I Must warn that a continuous Misfire could Lead to the Failure of the Catalytic Converter.

Hope this helps

Jamie

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Hi took the plunge and bought the car very cheap after haggling herdown so if it turns out to be a major problem I'll just scrap it only been used as a second car. OK the car starts off the key no problems the Idle is very lumpy and does stall occasionally.the misfire is there all the time regardless of rev range also notice black/grey smoke on start up the dispels after a few seconds but if you rev it you get alot of black smoke but no blue smoke? The ignition leads look ok coil pack looks new so quite stumped the previous Owner said the car was driving fine the lost power and started misfiring so had towed back to her house. And bought a new car? And not really looked at so any pointers what may be causing the issue would be greatful. Sorry for long post rich

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Tha ks for reply There's no blue smoke it was revved high at cold start but only got black smoke with a puff of grey on initial start. it's been oil changed every 5000 miles got a whole folder of service history so it's been very well maintained car. More black smoke then grey so what could be causing rich running and misfire

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As above - check the air filter & google '' petrol engine black smoke '' for pointers on why your engine is probably running rich - hence the black smoke, which is often too much fuel & not enough air in the combustion chamber.

The NGK plugs could also be an issue

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Cheers all yeah car is in great nick been very well looked after just got a feeling it's a sensor or vaccum hose but no idea of location or ones that usually pack up again thankyou 馃憤

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So this afternoon borrowed a coil pack from a friend who's car is working perfect btw same car engine differt spec. there's no change to engine. Changed plugs to Bosch ones and new ht leads slight change but still running rough through out rev range also noticed there is a variable popping noise coming from the airbox intake hose any ideas what can cause this thanks

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Is there a M.A.F. ( Mass Air Flow ) sensor on this car ?

If there is, it may or may not be serviceable, maybe take it out & clean it VERY CAREFULLY with electrical contact cleaner

Did you check the air filter ?

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Air filter ok. I've just been searching through the interweb and came across a few articles which tell you to disconnect the MAF sensor with engine running see if it makes a difference to running. I've just tried it and it makes no difference also it doesn't throw the orange EML light on which it said it should. the EML light is working as it comes on when ignition on and goes out when started very strange btw thanks for replys and info馃憤

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those readings are really good and no they would not cause a misfire

Has the car had a cambelt change. is the valve timing correct.

when you say misfire how bad is it.

Can you do a youtube video ??

Jamie

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