Hello,
I have a 01/1990 316i Automatic Saloon Non-KAT (leaded fuel equipment) VIN: AB78104. I have some issues that I would like to ask you guys/gals. When I first start it in the morning, the first throttle press I do results in a jerk/hesitation, unless I let it idle for some time (5mins+). When the engine is cold if I come to a halt there is a vibration throughout the car. The rpm's are stable no jumping etc. Once the engine is up to its operating temperature the vibration lessens but again if I come to a halt it can be felt through the spine or holding the steering wheel, but this time it comes and goes, like a wave effect, even if I put the trans to park It can be felt, not as bad as in gear but nevertheless. There is no problem the vehicle is in motion, it is babyface smooth, this only happens in idle. If there is any electrical load on the engine (external lights etc) the vibration will get worse. The things that I did are as follows, bear in mind all these parts came directly from BMW Classic so all of them are OEM except the exhaust.
-Timing belt change
-Engine-Tranny mount change
-Brand new AFM
-New High Power spark plugs
-New fuel filter
-All new fuel lines
-All new oil return lines
-Cleaned injectors
-Changed both blue and brown coolant temperature sensors
-Brand new radiator
-Ran smoke test, no leaks from it
-Brand new coil
-Brand new battery
-Brand new ICV
-Checked TPS
-Brand new fuel pump
-Brand new distributor cap and parts
-A brand new crank position sensor
-Refurbished alternator
-Checked DME fault memory, nothing stored
-Checked idle speed via diagnostic, steady 800 rpm when not in gear
-Brand new DME and Fuel Pump Relays
-New Exhaust
These are the things that I remember doing. What maybe the cause of this issue? Do I have to live like this as it is normal or is there something I am missing? You guys are my only hope...
Best,
Omer
I have a 01/1990 316i Automatic Saloon Non-KAT (leaded fuel equipment) VIN: AB78104. I have some issues that I would like to ask you guys/gals. When I first start it in the morning, the first throttle press I do results in a jerk/hesitation, unless I let it idle for some time (5mins+). When the engine is cold if I come to a halt there is a vibration throughout the car. The rpm's are stable no jumping etc. Once the engine is up to its operating temperature the vibration lessens but again if I come to a halt it can be felt through the spine or holding the steering wheel, but this time it comes and goes, like a wave effect, even if I put the trans to park It can be felt, not as bad as in gear but nevertheless. There is no problem the vehicle is in motion, it is babyface smooth, this only happens in idle. If there is any electrical load on the engine (external lights etc) the vibration will get worse. The things that I did are as follows, bear in mind all these parts came directly from BMW Classic so all of them are OEM except the exhaust.
-Timing belt change
-Engine-Tranny mount change
-Brand new AFM
-New High Power spark plugs
-New fuel filter
-All new fuel lines
-All new oil return lines
-Cleaned injectors
-Changed both blue and brown coolant temperature sensors
-Brand new radiator
-Ran smoke test, no leaks from it
-Brand new coil
-Brand new battery
-Brand new ICV
-Checked TPS
-Brand new fuel pump
-Brand new distributor cap and parts
-A brand new crank position sensor
-Refurbished alternator
-Checked DME fault memory, nothing stored
-Checked idle speed via diagnostic, steady 800 rpm when not in gear
-Brand new DME and Fuel Pump Relays
-New Exhaust
These are the things that I remember doing. What maybe the cause of this issue? Do I have to live like this as it is normal or is there something I am missing? You guys are my only hope...
Best,
Omer
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