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slow acceleration when cold xc90 2005 XC90 2005

posted by  jaro on  Sun Jun 16 11:17 CST 2013
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last visit: Tue Jun 18 12:33 CST 2013
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Hello, I drive 2005 xc90 manual d5 120kW... and when the engine is still cold, the car is accelerating very poorly from 1000-2000rpm - considering that I do not press the pedal to the floor (I do not feel like revving and destroying a cold d5 engine...)... but if I use the clutch agressively and release the clutch at 2000rpm, then the car accelerates heavily ...
My questions are :

Do xc90 D5 120kw have rev limiters in order not to damage cold engines?

Is there any other problem with d5 and slow acceleration response when cold? EGR, vacuum leak, some sensor malfunctioning...?

Best regards, J







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    slow acceleration when cold xc90 2005 XC90 2005

    posted by  KlausC on  Sun Jun 16 13:48 CST 2013
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    last visit: Fri Oct 24 10:15 CST 2014
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    Consider yourself doubly blessed, you have a diesel and a clutch. Americans are allowed neither.

    It is possible that a cold engine is getting too much fuel and slightly flooding it at low rpms. If this is still the case after 2Km or so, then I would check the air supply (filter), as it only takes a couple of minutes to bring the head to operating temperature.

    You still need to check the vacuum lines for any cracking, the car is 8-9 years old. A poor vacuum will result in too much fuel being injected. Follow the fuel lines to the pressure regulator and verify the vacuum lines are in good shape.






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