Throttle headaches!!! Please help!!!
I recently purchased a used 02 325ci..
Since then it seems it's spent more time being driven by a mechanic than myself..
I have this problem.. Well, my car does..
Driving to work on a steady/light THROTTLE also UNDER LOAD at around 1500-2000 rpm I'm experiencing a vibration/shudder/noise and its got my seeing red and questioning why the f*ck I bought it in the first place...
I have NO idle problems, so I'm certain it's not the MAF or any form of air problem.. Surely an air problem wouldn't shake the driveline/transmission/whereeverthehellthevibrationiscoming from...
Please help.. #consideringsellingandbuyinganevo :evil:
I think you may need to post more info before you get anything more than a random guess diagnosis. What work has been done on the car lately? How may miles does the car have? Do you have any error codes, and what are they? What diagnosis have you done? How are you sure it is not the MAF? What maintenance was done or not done to the car before you bought it? I am not trying to give you a hard time. I am just saying that in order to get a useful diagnosis, more information is needed. It could be an out of balance driveshaft. It could be your tires, suspension bushings, alignment, DISA valve, transmission, differential, vacuum leak, spark plugs, coils, or dozens of other things. It sounds like you have spent a lot of money getting other things fixed recently. It could be related to something that was already "fixed", but not done correctly. You really need to add more info to narrow it down. Good luck.
I was so keen to get answers I forgot to mention the sound is along the driveline.. *idiot*
Since i bought it ive got a new idler puller to fix a squeak since day one.. I got a new hose to the engine.. That had my car out of order for a good week.. With fears of a much higher invoice..
However every mechanic I've taken it to has never seen this before.. No codes picked up were related to the problem..
I've considerd torque converter, (but that would occur regardless of the car bing under load), o2 sensors ( I'd be getting idle problems), MAF (also idle problems), disa (more idles problems).. Not to mention the fact none of them would cause massive vibration/shudder... Unless it was a brushing/mounting problem.. Which I've been assured by an indie it is not (wankers ripped me off since day one)..
ATF? BMW assures lifetime reliability? Maybe the previous owner changed it with crap quality ATF?
The problem persists.. Seems not as bad with a full tank of petrol
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