Can hesitation between 24 m and 40mph
08-13-2011, 05:44 PM
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So in the past I have reported that when I am driving feathering the gas between 24mph and 40mph or between 40km and 60km the car stutters every 3 seconds. like so...
......!......!.......!...... where the ! indicate a hesitation point.
Many people attribute it to a faulty automatic transmission or mechatronics etc.
Well here's another development...I just experienced this again, but needed to fill up because the tank was empty, when I filled up, the stuttering was gone. I wonder if the fuel pump has anything to do with the issue. I now know that it's not a transmission issue.
Are there fuel pump issues with 2004 545i's ?
Thanks
......!......!.......!...... where the ! indicate a hesitation point.
Many people attribute it to a faulty automatic transmission or mechatronics etc.
Well here's another development...I just experienced this again, but needed to fill up because the tank was empty, when I filled up, the stuttering was gone. I wonder if the fuel pump has anything to do with the issue. I now know that it's not a transmission issue.
Are there fuel pump issues with 2004 545i's ?
Thanks
08-13-2011, 07:19 PM
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My Ride: '06 530i, '07 C280 4matic, '98 ML320
It's possible the real problem is one of the valves in the valve-body (aka mechatronics) and the misbehaving valve is working properly for the time being. I'd think the problem will come back. Just keep an eye on it...
On the other hand, if the problem comes back when the fuel goes below 1/4 of the tank, then fuel delivery may be the culprit.
On the other hand, if the problem comes back when the fuel goes below 1/4 of the tank, then fuel delivery may be the culprit.
08-14-2011, 09:03 PM
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i have the same exact problem!
i drives me f*#king crazy omg! and the dealer has no idea what the issue is. when they drive it they dont get the error. the check engine light isnt on either. i was thinking that it may be the O2 sensor but have not been able to confirm that either.
i also get the stutter sometimes while on the freeway but no where near as often as i do btwn 20 and 40 MPH....i really want to figure out what this is, its so so sooo annoying!
i drives me f*#king crazy omg! and the dealer has no idea what the issue is. when they drive it they dont get the error. the check engine light isnt on either. i was thinking that it may be the O2 sensor but have not been able to confirm that either.
i also get the stutter sometimes while on the freeway but no where near as often as i do btwn 20 and 40 MPH....i really want to figure out what this is, its so so sooo annoying!
08-15-2011, 10:34 AM
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i have the same exact problem!
i drives me f*#king crazy omg! and the dealer has no idea what the issue is. when they drive it they dont get the error. the check engine light isnt on either. i was thinking that it may be the O2 sensor but have not been able to confirm that either.
i also get the stutter sometimes while on the freeway but no where near as often as i do btwn 20 and 40 MPH....i really want to figure out what this is, its so so sooo annoying!
i drives me f*#king crazy omg! and the dealer has no idea what the issue is. when they drive it they dont get the error. the check engine light isnt on either. i was thinking that it may be the O2 sensor but have not been able to confirm that either.
i also get the stutter sometimes while on the freeway but no where near as often as i do btwn 20 and 40 MPH....i really want to figure out what this is, its so so sooo annoying!
We'll nail this sucker !!
08-16-2011, 05:04 AM
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engine sputtering all day yesterday....conditions quarter tank of gas and lower....sunny 80 degrees low humidity here in Detroit. speeds 20mph to 45mph.
08-16-2011, 05:33 AM
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Thanks! When you fill up next, let's see if the sputtering occurs again. Last time I filled up the tank my sputtering was gone, this was last Friday, it's Tuesday and still nothing. have 3/4 tank full.
It's probably a hit and miss, not sure if it's related to fuel delivery (fuel pump etc) but it's an option to eliminate from my trouble shooting process.
It's probably a hit and miss, not sure if it's related to fuel delivery (fuel pump etc) but it's an option to eliminate from my trouble shooting process.
08-16-2011, 04:29 PM
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Sputtering still present...full tank of gas...sunny...80 degrees mixed driving conditions, stutters occurring btwn 20 and 45 mph....
FML.
FML.
08-16-2011, 07:03 PM
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My Ride: Numero Uno in Richmond Va 04 530 6 speed, jet black, black dakota leather, xenons, red rear reflectors, 545 front grill, cold weather package, premium package, staggered 19 inch BBS rxII/michelins, H&R coilovers and intergrated, R1 concept drilled an
Model Year: 2004
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possible coil issue I have the same issue I suspected coil or hall sensor took it in the the dealer faulty coil 40 bucks a piece Im gonna replace all six with Bav auto higher performance ones, I can't get a check engine light to come on either good luck
08-18-2011, 10:07 AM
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sputtering yesterday as well....all day w/ a nearly full tank of gas. but i did notice that the issue occurred btwn 70mph and 80mph while in 5th gear (both automatic mode and manual-auto mode). seems like btwn 2.5k and 3k RPMs the sputter occurs, no matter the speed. so at least for me that starts to rule out a transmission issue unless both 3rd and 5th gear are having the same problem that is....