whats up with my e30 it shakes like a diesel at idle? - BMW Forum - BimmerWerkz.com
3-Series (E21, E30) Chat relating to the BMW 3-Series from 1975-1983 and 1984-1991 line. Specific models: BMW 315, BMW 316, BMW 318, BMW 318i, BMW 320/4, BMW 320i, BMW 320/6, BMW 323i, BMW 320i. E30 Family models include: BMW 325e, BMW 325i, BMW 325is, BMW 325ix.

 
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#1 (permalink) Old 10-05-2005, 12:56 AM
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whats up with my e30 it shakes like a diesel at idle?

whats up with that? when the 325e idles it idles at 700 rpm like normal and pretty steady but the car shakes a little on idle. i mean i have driven diesel trucks before and know it is norma for a diesel to shake.but i think it is not like a gasoline engine to make the car tremble on idle. motor mounts! is popping in my head do i have to change em whats up?and if i do how much and is it diyable?
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#2 (permalink) Old 10-05-2005, 06:41 PM
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the only thing i could think of is your engine mounts but i could be wrong

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#3 (permalink) Old 10-06-2005, 01:20 PM
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What fuel did you use? My little black 316i doesn't seem to like anything under 98 octane (unleaded), and when I tried filling her up with 95 octane the engine started shuddering in idle and later-on in accelaration. Or it could be the ignition wiring or rotor.
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#4 (permalink) Old 10-09-2005, 05:08 PM
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Your 325 should idle as smooth as a Kittie. If does not first check the engine for vacuum leaks (spray starting fluid on all the intake hoses and intake manifold) check for a dead fuel injector of spark plug by removing each plug wire one at a time. (wear rubber gloves or get knocked on you butt) lastly, if all else fails, do a complete compression test. You could have a burnt valve or lifter that is too tight. Don't forget the obvious, bad wires, rotor and plugs. Make sure the plug gap is correct too. Good luck!

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#5 (permalink) Old 10-10-2005, 05:31 PM
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i am having that same problem my car shakes on idle. I am going to inspect the plugs and change them and check the wires. What kind of test could I do to check the wires and injectors plus the fuel pump? something about...taking out the injector or something. about the testing of the fuel pump. i think you can disconnect the fuel pump and you will hear a noise.i am not sure if i can get some details i will be glad.
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#6 (permalink) Old 10-12-2005, 04:19 PM
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it shakes less now now that i put in new wr9ls plugs.guess i could check vacuum and rotor and distributor.
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#7 (permalink) Old 10-12-2005, 04:23 PM
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And Alsoi Will Check Manifold Intake.
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#8 (permalink) Old 10-12-2005, 04:24 PM
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Probably Motor Mounts Though.
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#9 (permalink) Old 10-14-2005, 10:32 PM
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how do i test the injectors
?
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