2005 530i engine stutters only at 4k RPMs
10-26-2009, 06:09 AM
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I am baffled at what I am feeling during accelerations where the RPMs pass through 4000. The engine loses power and the car bucks as I accelerate exactly when it hits 4000 rpm and goes away as the engine gets to 5000 rpm and beyond. Car runs completely normal unless its in the low 4000 rpm range?
Has anyone experienced anything like this?
My vehicles:
2005 530i Sports Package
2006 X5 4.8is Le Mans
Has anyone experienced anything like this?
My vehicles:
2005 530i Sports Package
2006 X5 4.8is Le Mans
10-26-2009, 07:11 AM
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Originally Posted by ccolonero' post='1040580' date='Oct 26 2009, 10:09 AM
I am baffled at what I am feeling during accelerations where the RPMs pass through 4000. The engine loses power and the car bucks as I accelerate exactly when it hits 4000 rpm and goes away as the engine gets to 5000 rpm and beyond. Car runs completely normal unless its in the low 4000 rpm range?
Has anyone experienced anything like this?
My vehicles:
2005 530i Sports Package
2006 X5 4.8is Le Mans
Has anyone experienced anything like this?
My vehicles:
2005 530i Sports Package
2006 X5 4.8is Le Mans
10-26-2009, 07:34 PM
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Originally Posted by Krozi' post='1040620' date='Oct 26 2009, 10:11 AM
My only guess would be the fuel pump, injecters, throttle body? Not sure about the fuel pump since it's normal after 5000 rpm....how many miles on the car?
10-26-2009, 08:43 PM
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Originally Posted by ccolonero' post='1040580' date='Oct 26 2009, 09:09 AM
I am baffled at what I am feeling during accelerations where the RPMs pass through 4000. The engine loses power and the car bucks as I accelerate exactly when it hits 4000 rpm and goes away as the engine gets to 5000 rpm and beyond. Car runs completely normal unless its in the low 4000 rpm range?
Has anyone experienced anything like this?
My vehicles:
2005 530i Sports Package
2006 X5 4.8is Le Mans
Has anyone experienced anything like this?
My vehicles:
2005 530i Sports Package
2006 X5 4.8is Le Mans
Here's a thread from the archives:
https://5series.net/forums/lofiversi...php/t2879.html
10-27-2009, 03:01 AM
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Originally Posted by 530inOK' post='1041106' date='Oct 27 2009, 12:43 AM
Possibly a DISA valve since you have s specific deadband in your RPMs. Diamond posted a thread about failed DISA valves a while back. He must have taken it with him...I couldn't find it.
Here's a thread from the archives:
https://5series.net/forums/lofiversi...php/t2879.html
Here's a thread from the archives:
https://5series.net/forums/lofiversi...php/t2879.html
11-06-2009, 04:20 AM
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Originally Posted by 530inOK' post='1041106' date='Oct 26 2009, 11:43 PM
Possibly a DISA valve since you have s specific deadband in your RPMs. Diamond posted a thread about failed DISA valves a while back. He must have taken it with him...I couldn't find it.
Here's a thread from the archives:
https://5series.net/forums/lofiversi...php/t2879.html
Here's a thread from the archives:
https://5series.net/forums/lofiversi...php/t2879.html
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