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ghanayem
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14-03-2013, 12:51 AM
  #1
ghanayem غير متواجد حالياً  
افتراضي BMW 540I Bad takeoff

:: اعلان ::

Hi all,
i have a bad takeoff in my 540 1997, high rpm with slow and sluggish start, everything i have checked nothing abnormal were found....could anybody help in this case


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افتراضي رد: BMW 540I Bad takeoff
2#
14-03-2013, 04:54 AM
I think it's an intake problem thing

have you checked the Air mass flow ?

is there any air vacuum leaking from the manifold ?

do you have any scanner to check if there is any error codes ?

try to scan if there is any problem

sluggish start caused by bad battery or a problem with the starter

do you smell any fresh gasoline smell after a while ? inside the car or outside?

i will try to help you here and i will translate for you because you know it's an Arabian Forum and a very few members can speak English

التعديل الأخير تم بواسطة black eyed ; 14-03-2013 الساعة 05:13 AM
black eyed غير متواجد حالياً  
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black eyed has much to be proud ofblack eyed has much to be proud ofblack eyed has much to be proud ofblack eyed has much to be proud ofblack eyed has much to be proud ofblack eyed has much to be proud ofblack eyed has much to be proud ofblack eyed has much to be proud of
افتراضي رد: BMW 540I Bad takeoff
3#
14-03-2013, 05:09 AM
هاذا الخواجه خوينا عنده مشكله لما يشغل السياره التشغيل عنده ضعيف كان البطاريه ضعيفه ولما تشتغل السياره ضغط المكينه عنده عالي

قلتله ضغط المكينه عالي مع التشغيل يمكن الايرماس عنده فيه مشكله او فيه تسريب هوا

وضعف التشغيل ممكن من السلف او البطاريه

اذا فيه اراء ثانيه على شان اترجمله
black eyed غير متواجد حالياً  
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افتراضي رد: BMW 540I Bad takeoff
4#
14-03-2013, 05:39 AM
rpm
check or clean= idle regulating valve and throttle


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افتراضي رد: BMW 540I Bad takeoff
5#
14-03-2013, 02:10 PM
i meant here bad launch, so slow car at the beginning, and bad performance. the starter is ok (automatic self), but the problem i have high rpm with low & bad performance, some body tell me that you have problem in Gear torque converter & others told me your problem in your whole trinny (gear box) , much gasoline smell in all cases, plus very high feule consumption.
i am wiling to see your comments here.
thanks in advnced
ghanayem غير متواجد حالياً  
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black eyed has much to be proud ofblack eyed has much to be proud ofblack eyed has much to be proud ofblack eyed has much to be proud ofblack eyed has much to be proud ofblack eyed has much to be proud ofblack eyed has much to be proud ofblack eyed has much to be proud of
افتراضي رد: BMW 540I Bad takeoff
6#
16-03-2013, 04:08 AM
if the RPM when you're driving is not stable (suddenly drops) and you hear strange sound in the car like (whining ) then the torque converter is bad

if that not happen with you then the torque converter is fine


if the changing gears is smooth and good

then the gear box is fine also

like i said before i think it's fuel system problem and the prove is like you said there is much gasoline smell and high fuel consumption

check this sensor




it's called

FUEL TANK BREATHER VALVE


start the car and listen carefully to this sensor


it's located behind the driver side headlight somewhere around the oil filter


you should hear tikking from this sensor


it's not a permanent tikking

it stops and came back again

if you not hear any tikking at all

this is what cause the gasoline smell

there is a pipe connected between this sensor the intake manifold

look at this pic





try to check if its loose or unplugged


i really recommend to scan your car with computer scanner

this is will show you the problem where exactly

and again it's absolutely a fuel system problem and your gear and the torque converter is fine

التعديل الأخير تم بواسطة black eyed ; 16-03-2013 الساعة 04:13 AM
black eyed غير متواجد حالياً  
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•مِعـ »بآلـِحـِلآ‘ـآ«ـطـِر•

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DR.PC has much to be proud ofDR.PC has much to be proud ofDR.PC has much to be proud ofDR.PC has much to be proud ofDR.PC has much to be proud ofDR.PC has much to be proud ofDR.PC has much to be proud ofDR.PC has much to be proud ofDR.PC has much to be proud of
افتراضي رد: BMW 540I Bad takeoff
7#
16-03-2013, 08:12 AM
translate it to arabic pleace
DR.PC غير متواجد حالياً  
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•مِعـ »بآلـِحـِلآ‘ـآ«ـطـِر•

رقم العضوية: 12364
تاريخ التسجيل: Oct 2009
الدولة: الرياض
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قوة السمعة: 155
DR.PC has much to be proud ofDR.PC has much to be proud ofDR.PC has much to be proud ofDR.PC has much to be proud ofDR.PC has much to be proud ofDR.PC has much to be proud ofDR.PC has much to be proud ofDR.PC has much to be proud ofDR.PC has much to be proud of
افتراضي رد: BMW 540I Bad takeoff
8#
16-03-2013, 08:12 AM
:rose:
DR.PC غير متواجد حالياً  
رد مع اقتباس
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تاريخ التسجيل: Jan 2009
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black eyed has much to be proud ofblack eyed has much to be proud ofblack eyed has much to be proud ofblack eyed has much to be proud ofblack eyed has much to be proud ofblack eyed has much to be proud ofblack eyed has much to be proud ofblack eyed has much to be proud of
افتراضي رد: BMW 540I Bad takeoff
9#
16-03-2013, 01:52 PM
الاخ يقول ان عنده مشكله بارتفاع ال rpm عنده مع ضعف عزم وريحه بنزين بالسياره

هاذا مختصر مشكلته
black eyed غير متواجد حالياً  
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افتراضي رد: BMW 540I Bad takeoff
10#
19-03-2013, 12:41 AM
Thanks Mr. eyad
but, the question here, does this sensor relate to car performance, it is so sluggish in its takeoff, like 6 cylinder or less,,,,, plus my car model is 1997, i think i dont have such sensor in my car
PLZ advise
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