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Old Aug 20, 2018 | 05:56 PM
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From: Stevenage
Default juddering

Evening All
I have a 2005 wagon all standard

the problem i have is the about 2000/2500 i get juddering as if theres a lack of fuel as you rev through it disappears and pulls as it should the fuel consumption is way up as well
I have replaced the O2 sensor,idle air control valve,throttle position sensor,the MAF sensor is also working fine
Im at a loss now any help would be appreciated


Thanks All
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Old Aug 21, 2018 | 10:54 AM
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From: Rl'yeh
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Plugs/leads/coilpacks.
Then new fuel pump.
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Old Aug 21, 2018 | 05:21 PM
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Get the codes checked.
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Old Aug 21, 2018 | 07:00 PM
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its had new plugs i think that if it was the coil packs it may do it more under load

No codes are showing :-(
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Old Aug 21, 2018 | 08:36 PM
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I had a very slight miss at about 3000rpm on my blob 05 wagon; replaced all the same bits as you, still it threw the occasional cel. I got the injectors cleaned by the ebay guy in Devizes, Injectorclean. It was like a new car after. Most injector spray patterns are shagged by 80 000 miles, and they are just as important as your spark plugs....worth a try
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Old Aug 21, 2018 | 09:35 PM
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yeah i was thinking of going down that route next

Thanks
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Old Aug 22, 2018 | 10:08 AM
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Check the turbo inlet pipe for splits also.
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Old Aug 23, 2018 | 11:06 AM
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From: Rl'yeh
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Had plugs changed by dealer in the early days on mine. Straight after, had a misfire.

It was EVENTUALLY traced to a damaged plug lead......
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Old Aug 23, 2018 | 02:39 PM
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mine are coil packs that push straight on the top of the plugs and bolt to the engine so no leads
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Old Aug 23, 2018 | 08:02 PM
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From: Rl'yeh
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You checked the coilpacks then?
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Old Aug 23, 2018 | 08:35 PM
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i think that if it was the coil packs then they would break down under more load than just above 2k but it will be something to have a look at

BUT

i may have sorted it i adjusted the wastegate actuator wound it back in a few turn so the the arm is putting the flap under tension and sprayed up the wastegate solenoid and it seems to have done the job

but only time will
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