First off, I have lurked the pages of this, and a couple of other BMW forums and am impressed with the knowledge the members have. I have decided to join to present my problem and ask those who have more knowledge than me.
Admittedly I am an air cooled guy and my daily driver is a 66 VW Bug. I do, however, own a 1986 325e that I have owned for several years. It has been a great car, but now it is time to pass the love of German auto engineering to my 16 year old son. He gets the BMW (lucky kid).
The problem I am having is a hesitation. The problem presents itself after the car is warm and has traveled several miles down the road. It comes around periodically at right around 1700 RPMs and while my son was driving it appeared to be when he was reapplying the gas after a slight coast (kind of just like he was regulating his speed on the highway). It will also hesitate periodically when starting mellow from a stop. It does not do it at wide open throttle or above 2000 RPM and the car starts and idles fine. At one point today I was traveling at roughly 55 MPH in 5th when it started hesitating, so I down shifted into 4th without moving my right foot on the accelerator. No hesitation in 4th and RPMs obviously went over 2000.
The plugs are new, newer fuel filter, new air cleaner, checked all plug wires. After reading several posts regarding all of the sensors (o2, CPS, ICV and so on) I decided to start with the o2. No change. The car actually runs great, minus this issue, and pulls hard when you put your foot into it
I hope I explained the symptoms sufficiently, but I have a hard time thinking I am the first with this problem. I have searched, but have not seen anything exactly like this. If more info is needed, let me know.
I have posted this on another site also, but thought a larger audience might help.
Brian
Admittedly I am an air cooled guy and my daily driver is a 66 VW Bug. I do, however, own a 1986 325e that I have owned for several years. It has been a great car, but now it is time to pass the love of German auto engineering to my 16 year old son. He gets the BMW (lucky kid).
The problem I am having is a hesitation. The problem presents itself after the car is warm and has traveled several miles down the road. It comes around periodically at right around 1700 RPMs and while my son was driving it appeared to be when he was reapplying the gas after a slight coast (kind of just like he was regulating his speed on the highway). It will also hesitate periodically when starting mellow from a stop. It does not do it at wide open throttle or above 2000 RPM and the car starts and idles fine. At one point today I was traveling at roughly 55 MPH in 5th when it started hesitating, so I down shifted into 4th without moving my right foot on the accelerator. No hesitation in 4th and RPMs obviously went over 2000.
The plugs are new, newer fuel filter, new air cleaner, checked all plug wires. After reading several posts regarding all of the sensors (o2, CPS, ICV and so on) I decided to start with the o2. No change. The car actually runs great, minus this issue, and pulls hard when you put your foot into it
I hope I explained the symptoms sufficiently, but I have a hard time thinking I am the first with this problem. I have searched, but have not seen anything exactly like this. If more info is needed, let me know.
I have posted this on another site also, but thought a larger audience might help.
Brian
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