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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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Old 03-25-2005, 04:21 PM   #1 (permalink)
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ok so when i accelerate my car gives alittle bit of hesitation and then starts to run fine also sum times when going in reverse it stalls out ands it an auto transmision any sugestions? thanx for the help pce. oo=[][]=oo
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Old 03-30-2005, 05:43 PM   #2 (permalink)
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Hi, first do the easy things...
check vacuum lines first (replace those bent and cracked), that is easy and cheap and can make a lot of difference, especially when idling.
Then check sparkplug connectors (check that they are not cracked) and plugs.
And then the fuel filter, if it is clogged your engine could be short on fuel which causes the shut off.
Also don't forget to check that every sensor is correctly attached to its wires (my dad's '87 325e auto had a suddendly stalling engine and was a sensor that sometimes de-attached)

Then some more complicated or time consuming stuff..
Clean the throttle body, remove carbon deposits but beware with those chemical solvents that could eat the plastic parts and sensor fixtures. Also don't dettach the throttle position sensor unless you know how to adjust it.
Clean and inspect the distributor rotor arm (my dad's car suffered from a general lack of power and sudden shutoffs from a worn one)
Make sure the two fuel pumps (the one at the fuel tank and the one under the car) are working properly)
If you know the settings and have some means to measure them, check the sensor readings (throttle position and airflow meter specifically)

Hope some of that fixes it.
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