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Old 04-10-2009, 01:23 AM   #1
daveupshaw
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Angry Slow jumpy Acceleration

Hey guys...

So i am very new to e46, i just got 2000 323i about a month ago. I dont really know anything about them.

So heres my problem, driving home tonight my acceleration all of a sudden is extremely crappy... i put the gas down all the way in first gear and the RPMs go up very jumpy and slow. same thing in all the other gears with less power in every gear. I have no idea what this could be since i dont know much about these cars.


I did try searching and did not find anything....any help would be awesome...

thanks guys





I replaced the rubber boot with the hole, so hopefully this fixes my problem.
here are some pics of the hole and the new piece
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Last edited by daveupshaw; 04-18-2009 at 08:15 PM.
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Old 04-10-2009, 01:37 AM   #2
Acarder
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Manual or auto? Could be a failing torque converter
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Old 04-10-2009, 01:38 AM   #3
daveupshaw
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manual....
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Old 04-10-2009, 07:17 AM   #4
franz
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could be so many things, coils perhaps...
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Old 04-10-2009, 07:18 AM   #5
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Do the RPMs climb up jumpy and slow in idle as well?
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Old 04-10-2009, 09:25 AM   #6
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The only experience I have with RPMS fluctuating is that it was the cam shaft sensor. First the intake went bad then the exhaust went bad (they are easy to replace). Otherwise read my sig. or goto autozone and check codes for free.
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Old 04-10-2009, 03:20 PM   #7
daveupshaw
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Do the RPMs climb up jumpy and slow in idle as well?
no it idles normal, and this morning on my drive to work it didnt do it anymore.

Also when i got home from work just now i took a look under the hood and found a hole in one of the air intake plastic hoses.. would that hav anything to do with it??
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Old 04-10-2009, 03:32 PM   #8
Chriztofor
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no it idles normal, and this morning on my drive to work it didnt do it anymore.

Also when i got home from work just now i took a look under the hood and found a hole in one of the air intake plastic hoses.. would that hav anything to do with it??
Yes, any air/vacuum leak could cause that problem.
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Old 04-10-2009, 03:33 PM   #9
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The hose that has the hole in it is Number 5 in this image^^^ it is about the size on a quarter.
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Old 04-10-2009, 03:35 PM   #10
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i will replace that hose than.

thanx for the help guys hopefully this will fix the problem!!!!"
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Old 04-10-2009, 04:20 PM   #11
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The hose that has the hole in it is Number 5 in this image^^^ it is about the size on a quarter.
What image? I'd like to see it, I think I am having this problem too.
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Old 04-10-2009, 04:58 PM   #12
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Could it also be the Transmision Oil ? I know that happens to automatics when they are low on oil !
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Old 04-10-2009, 05:08 PM   #13
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mine automatic does this as well. its been really sluggish the past few weeks. I almost have to floor it to get anything out of it. Torque converter?
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Old 04-10-2009, 09:02 PM   #14
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Could it also be the Transmision Oil ? I know that happens to automatics when they are low on oil !
Mine is not an automatic, and i just had my transmission oil checked and it is good/pretty new, all of the parts stores and the bmw dealer are closed today because of easter weekend.... so just took some duct tape and fixed the hole in the hose for a few days..i dont see any harm in doing that. as soon as i did this it does not do it anymore, plus the extremly anoying high pitch squeeling noise from the engine is now gone so i guess this hole was causing this as well. when the parts stores reopen after the weekend i will replace the part.


o and the image that didnt work was just a picture of the part from the oem bmw parts website, it was under mass air flow or somthing, and it was number 5.. thats just where my hole was, it is quite big and obvious to see...

cheers
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Old 04-10-2009, 09:46 PM   #15
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I had the same situation a few years ago. Turned out to be a faulty cam position sensor.
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Old 04-11-2009, 04:48 PM   #16
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I'm surprised no one mentioned anything about the clutch, is it slipping? When was the last time it was replaced?
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Old 04-11-2009, 08:25 PM   #17
daveupshaw
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no its not the clutch, i fixed the problem, i changed the hose with the hole and its all good... im not sure when it was last changed tho i have only had the car about a month
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Old 04-11-2009, 08:33 PM   #18
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Quote:
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no its not the clutch, i fixed the problem, i changed the hose with the hole and its all good... im not sure when it was last changed tho i have only had the car about a month
I had to change some hoses as well, BMW says you should change the hoses of the car every 5-7 years ! I bought mine a week ago and it still had the original hoses !
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Old 04-11-2009, 08:35 PM   #19
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no its not the clutch, i fixed the problem, i changed the hose with the hole and its all good... im not sure when it was last changed tho i have only had the car about a month
Change the oil like twice in the next 3000 miles and drive like you stole it. You'll be good as gold after that (as much as it sounds like it, i'm not being sarcastic here. 6000RPM+ per journey to clean out the gunk and crap thats probably in there from the last owner).
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Old 04-11-2009, 09:31 PM   #20
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Change the oil like twice in the next 3000 miles and drive like you stole it. You'll be good as gold after that (as much as it sounds like it, i'm not being sarcastic here. 6000RPM+ per journey to clean out the gunk and crap thats probably in there from the last owner).
That doesn't sound (to me) like a very good idea. I don't see how running the engine at high RPMs will "clean" it, it just sounds like it will wear it out.
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