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 33,091 nationwide 3 Series listings starting at $1,428.


BMW 3 Series Experts

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

Related Models For Sale

Used BMW 5 Series
475 Great Deals out of 16,253 listings starting at $1,032
Used BMW M3
56 Great Deals out of 1,997 listings starting at $5,495
Used Mercedes-Benz C-Class
846 Great Deals out of 26,036 listings starting at $1,500
Used Audi A4
235 Great Deals out of 11,942 listings starting at $1,899
Used Ford Mustang
457 Great Deals out of 42,831 listings starting at $1,488
Used Honda Accord
859 Great Deals out of 79,206 listings starting at $1,444
Used Mercedes-Benz E-Class
563 Great Deals out of 22,263 listings starting at $1,999
Used BMW 7 Series
141 Great Deals out of 5,126 listings starting at $1,770
Used Chevrolet Camaro
502 Great Deals out of 31,149 listings starting at $2,495
Used Honda Civic
696 Great Deals out of 53,263 listings starting at $1,495

Used Cars For Sale

2018 BMW 3 Series For Sale
16 Great Deals out of 6,116 listings starting at $31,076
2017 BMW 3 Series For Sale
112 Great Deals out of 3,674 listings starting at $22,989
2016 BMW 3 Series For Sale
50 Great Deals out of 1,150 listings starting at $14,991
2015 BMW 3 Series For Sale
141 Great Deals out of 3,329 listings starting at $13,926
2014 BMW 3 Series For Sale
254 Great Deals out of 4,289 listings starting at $11,979

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.