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S80 '06-'16 / V70 & XC70 '07-'16 General Forum for the P3-platform S80 and 70-series models |
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V70 D5 lumpy after startup (briefly)Views : 953 Replies : 16Users Viewing This Thread : |
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Mar 28th, 2024, 14:16 | #16 | |
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Last Online: May 10th, 2024 13:55
Join Date: Aug 2021
Location: Lancashire
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Quote:
Re-starting when the engine is hot is usually not enough time for any serious amount of fuel to leak from the injectors. This is the most common cause of rough running that only happens for the first couple of seconds after startup, other than glowplug related faults. If you are sure that your glowplugs and glowplug controller are good. Another (less common on D5) cause of this can be coolant leaking past the head gasket and getting into cylinders when the car is left for a few hours so you get the rough running for the first couple of second as the coolant is cleared out
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