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Yet ANOTHER persistent cylinder 5 misfire N54
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10-17-2013, 07:55 PM | #45 | |
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I'm suspecting it was a carbon issue as well, but never got the green light to take a look at the valves.
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10-18-2013, 08:20 AM | #46 | |
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10-18-2013, 08:36 AM | #47 | |
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10-18-2013, 09:06 AM | #48 | ||
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Yeah, I haven't really come to a conclusion on why some cars are so bad and others don't seem to have any problems at all with carbon. The way they're driven, type of fuel used, how clean the engine oil is kept? It's hard to know when it isn't your personal car. FWIW, all the cars I've driven with that low-rpm shudder have been 6MT cars.
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10-18-2013, 09:20 AM | #49 |
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Have you swapped the plug locations? I had swapped all mine out and had some of the same codes and swapped a coil and injector before swapping plugs to find the codes moved with the plug. New plug and all was good. Maybe you did this already or it is beyond this but sharing my experience.
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10-18-2013, 10:04 AM | #50 |
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This may have been said already but I would check you injectors and make sure it's not leaking on to you spark plug and fouling it out. Also get a carbon blast (walnut) and you should be fine.
Lastly check both high pressure and low pressure pumps along with sensors for each
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10-18-2013, 10:17 AM | #51 |
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While cleaning the valves I noticed the crank case breather ports in each of the intake runners. Looking at the schematics it looks like there is an oil seperator built into the valve cover that feeds thesea ports. Makes since to do it this way due to the intake charge being higher preasure than the crank case. Would be nice to feed this line with solvent once in a while to help manage the build up.
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