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Old 10-14-2017, 08:25 PM   #1
newto318
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Default Rough idle NO Change in rpm

Hello all,

My daughters car is a 96 318ti . The idle is a little rough but the rpm is stable at 800-900. Should it be higher? Why the rough seeming idle with no fluctuating idle? I am new BMW but love the car as it has a cool California roof. Thanks ahead
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Old 10-24-2017, 12:03 PM   #2
Bills86e
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start removing at air box, remove/inspect and clean, thru throttle body, then remove plenum and change out the pcv-ccv. use new gasket and vacuumn hoses. only use mass air flow cleaner when you do the maf sensor, and carb cleaner is ok for the AFN - IAC -tps. Replace the air filter too. Cleanliness is King. After you've put her all back together, Enjoy your run like new Toy! I Love taking things apart! use tooth brush & Q-tips Watch some DIY 's on utube. Bills86e
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Old 10-24-2017, 01:33 PM   #3
newto318
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Quote:
Originally Posted by Bills86e View Post
start removing at air box, remove/inspect and clean, thru throttle body, then remove plenum and change out the pcv-ccv. use new gasket and vacuumn hoses. only use mass air flow cleaner when you do the maf sensor, and carb cleaner is ok for the AFN - IAC -tps. Replace the air filter too. Cleanliness is King. After you've put her all back together, Enjoy your run like new Toy! I Love taking things apart! use tooth brush & Q-tips Watch some DIY 's on utube. Bills86e


Thanks so much for the reply. I will start this weekend.


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Old 10-24-2017, 04:09 PM   #4
macilona
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Howdy! You may want to check the motor mounts as well. They do wear out on cars this old and can cause some drivetrain vibration. Good luck!
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