Turn Sharply=car Stuttering, Along With Electronic

[BMW-ATI]

Ok I have an update that may be a solution to my "low rpm" sluggish driving problem I've been talking about

When Im going slow and taking a hard right or left, I notice my rpm's jumping up and down like the car is gonna stall (kinda like irregular idle), but Im moving, Like if Im turning into a parking space, and I notice when I always go up this hill near my house my car feels like it holds back and I gotta give it more gas (possible relation there?)

also like when I touch certain things, Like say I have my lights on and I push the power window button up when my windows are already up, my car will stutter and the rpm's will dip for a second

ANY ideas

[napalm]

Originally posted by BMW-ATI@Jul 9 2005, 11:30 PM
Ok I have an update that may be a solution to my "low rpm" sluggish driving problem I've been talking about

When Im going slow and taking a hard right or left, I notice my rpm's jumping up and down like the car is gonna stall (kinda like irregular idle), but Im moving, Like if Im turning into a parking space, and I notice when I always go up this hill near my house my car feels like it holds back and I gotta give it more gas (possible relation there?)

also like when I touch certain things, Like say I have my lights on and I push the power window button up when my windows are already up, my car will stutter and the rpm's will dip for a second

ANY ideas

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I'm not a mechanic but I've always worked on my own stuff (consider that before accepting the validity of my opionion )

Power steering and Alternators typically run off a belt that is connected to your motor. Hence steering your car with the car off is very difficult. The car running turns the belt which turns the powersteering pump. Maybe your alternator is causing the same problem.. it has a bad bearing or something else wrong with it, and when you place a draw on it, it slows the motor down while the motor continues to try and turn it.

The powersteering maybe have the same issue, try checking the fluid in your powersteering pump.

Good luck, hope any of this helps.

[BMW-ATI]

Hmm What about the whole when I push the power windows button, it like stutters?

[Rookie]

Most cars will do that. Think about the motor on the window is trying as hard as it can to roll the window up but the window is already up. SO it is using as much juice as possible but the glass can't go anywhere I have seen this in every vehicle no matter how new it is. It would make sense that the idle would drop when you demand more power on the because the resistance that the alternator is presenting to the engine is increasing because it wants more power. Therefore it takes a moment for the engine to get extra gas from the EFI to meet the increased power demand. Same if I am pounding my subs at idle the RPMs will jump around a little bit from the extra power demand on the system.

[Rookie]

Sorry to double post, but places like Napa will test your alternator for free. This might be the problem, they can take it out of the car and put it on their machine and tell you if you have bad bearing for pretty damn cheap.

[Gkamysz]

Yup. Same thing if your are turning the wheel against the stops.

[BMW-ATI]

I dont see how me turning hard would make it stutter

would that explain my rpm dip when i turn around corners tho?

[Gkamysz]

Are you turning the wheel against the steering stops? Or are you just turning quickly?

Any car that I know of if you turn the steering wheel all the way to the stops and keep pushing, will load up the power steering.

[93 325i]

yea turning the wheel all the way to the max causes a major load. The car needs to focus more of its draw to the power steering pump so the other compnets (alternator and such) dont get as much in those seconds. In extreme cases some cars actually stall from this action. If your lights and other componets really dim when operating the windows then I would wager the alternator is getting weak. Also a good idea to check your battery..

[BMW-ATI]

My alternator bearings are kinda wearing out, but if Im like turning and going up a hill and my car is pulling back would that have to do with the alternator?

[aheath]

Just take your car to Autozone or Les Swabs and they will test your alternator for free, and let you know if it's producing enough.

[Angelic0-]

Originally posted by BMW-ATI@Jul 12 2005, 02:47 PM
My alternator bearings are kinda wearing out, but if Im like turning and going up a hill and my car is pulling back would that have to do with the alternator?

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I'd check the fuel pump and the alternator, and then again the steering pump.

Is there a lot of drop in rpm's or just a slight, a slight drop is normal. but a drop of let's say 250-500rpm is abnormal !