stumped 1996 bmw 328is


Asked by Aug 01, 2014 at 08:55 AM about the 1996 BMW 3 Series 328is Coupe RWD

Question type: Maintenance & Repair

ok so i have a 1996 bmw 328is has a good battery but wont stay charged that's one
problem but the car wont run and when it does run it runs like it is miss firing but ive done
a compression test and its fine its is running like its dieing our i just replaced the
camshaft postition sensor and the fuel pump can anyone think of anything else it might be
could the alternator cause this just a question/

5 Answers


i know this isant allot of info but any questions i will answer


What is your alternator output voltage? Possibly not the issue with the running but could be. If battery voltage and alternator voltage is low you might have some electronics not wanting to work right due to low voltage. Fully charge battery and test output voltage of alternator. Loose battery connections specially the negative one could also cause similar issues. Check where it connects to the frame and motor.


so the battery was bad got that fixed but the car still runs like crap ive replaced the valve cover seal but there are no leaks in it new coil packs and its got a new cmp (camshaft position sensor i replaced the cmp when the car started acting up because when i tapped on it the car would fire up. to get to it i took the oil filter cap off the vanos sensor off and the (air filter boxfor more room) put it all back together the and the car fired up but it started running like crap has trouble staying started when you hit the gas the car shut bogs down oh i replaced the fuel pump about two weeks before all this happened

1 of 1 people found this helpful.

Was it running better before you took the items off for repair? If so Check all wire harnesses in the area of where you did the work. Also check for vacuum leaks.


it was not running until i replaced the part could it be the crank case i have rough idle and miss fire but i dont have the smoke coming out of the tail pipe?????

Your Answer

3 Series

Looking for a Used 3 Series in your area?

CarGurus has 37,232 nationwide 3 Series listings starting at $1,000.


BMW 3 Series Experts

  • #1
    Tom Demyan
  • #2
    Robert Charlson
  • #3
View All

Related Models For Sale

Used BMW 5 Series
534 Great Deals out of 16,990 listings starting at $1,500
Used BMW M3
30 Great Deals out of 2,174 listings starting at $6,599
Used Mercedes-Benz C-Class
865 Great Deals out of 30,903 listings starting at $1,500
Used Audi A4
323 Great Deals out of 13,192 listings starting at $1,899
Used Ford Mustang
606 Great Deals out of 38,986 listings starting at $1,500
Used Mercedes-Benz E-Class
710 Great Deals out of 23,255 listings starting at $1,795
Used Honda Accord
1,194 Great Deals out of 74,734 listings starting at $561
Used BMW 7 Series
114 Great Deals out of 5,635 listings starting at $2,999
Used Chevrolet Camaro
499 Great Deals out of 33,581 listings starting at $1,450

Used Cars For Sale

2017 BMW 3 Series For Sale
166 Great Deals out of 6,139 listings starting at $24,775
2016 BMW 3 Series For Sale
67 Great Deals out of 1,701 listings starting at $18,591
2015 BMW 3 Series For Sale
74 Great Deals out of 2,469 listings starting at $14,899
2014 BMW 3 Series For Sale
340 Great Deals out of 5,551 listings starting at $10,999
2013 BMW 3 Series For Sale
75 Great Deals out of 1,699 listings starting at $11,599

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.