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VW Fox 2010 1.2 3 cyl missfire

Posted By forge-garage-lincolnshire Monday, July 01, 2013 2:10:00 PM
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forge-garage-lincolnshire
 Posted Monday, July 01, 2013 2:10:00 PM
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Hi Guys

got a 2010 fox in the work shop with a intermittent miss fire on No 3 cylinder.

Customer changed plugs and 3 ignition coils

No other fault codes other than miss fire No3 cyl

If you pull hard throught 2Nd to 3Rd just under red line eml flashes on and goes off No 3 completely .

I was thinking it might be an hydraulic lifter holding the valve open

Cheers Chris K
Robski
 Posted Monday, July 01, 2013 2:15:40 PM
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If you pull hard throught 2Nd to 3Rd just under red line eml flashes on and goes off No 3 completely .

I was thinking it might be an hydraulic lifter holding the valve open
Do the misfire MVB's follow ?

Running compression on cyl#3 ??

Rob.

Scan it, Smoke it, Scope it....... Don't just poke & hope it © ™ BigGrin
RichTT
 Posted Monday, July 01, 2013 2:29:54 PM
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Compression test done?

Chocolate engine!
SB126
 Posted Monday, July 01, 2013 4:10:56 PM
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compression. and burnt valve seats.
sparki1
 Posted Monday, July 01, 2013 4:12:33 PM
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xBenn
 Posted Monday, July 01, 2013 6:04:00 PM
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3 cylinder engine - De-volution at it's best.
forge-garage-lincolnshire
 Posted Wednesday, July 03, 2013 6:32:38 AM
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Hi Guys,

Thank you for your replies the customer is taking it to VW in boston to be checked out.

Cheers chris K

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