1986 bmw e30 323i,cranks bt wont start,pls help

Asked by Nov 26, 2015 at 09:00 PM about the 1986 BMW 3 Series 323i

Question type: Maintenance & Repair

i have a 323i which simply wont start ive had 3 dif mechanics over and all have dif answers.....i have replaced fuel pump,fuel filter,plugs,leads,distributor cap and battery....they are alll brand new,bt still she jus swings and swings and refuses to take and start,getting new computer box today,,,,,i had spark,fuel and injectors were working bt now non of the three are working plz assist as i am moving and dnt wana have to selll cause this is my dream car and neva thought i wud ever gt to own my own one and mechanics have cme out bt they stil have not found the cause to my problem they jus tell me wat it might be bt nt certain..and dnt have that kinda money to buy a part and then still be left wit the same thing.....

3 Answers

67,255

You need 3 things for it to run. Fuel, spark, and compression. Try spraying some starting fluid down the throttle body. It should run a few seconds on the starting fluid. If so, you have spark and compression so it's a fuel problem. If it won't run on the starting fluid, check for spark. You should have good strong spark at the spark plugs that you can see and hear. Pull one of the spark plug wires and put a large wooden or plastic handle screwdriver in the end of the spark plug wire. Hold the metal part of the screwdriver close to something metal on the engine that's not painted. Have a helper crank the engine. You should see a strong spark and hear a SNAP-SNAP-SNAP type of sound. If you have that then it's time to run a compression test. If all cylinders test low or zero it's jumped timing. HTH. -Jim

Need help

1986 325e not starting...I hear fuel pump when turn key on - just cranks ....but before I found bad fuel pump rely it would start up for a second then die....wait a little bit and it'll do the same thing...now hearing fuel pump it just cranks and won't fire up for a second then die ??????? Wth..bad fuel pump inside tank ???? Check for spark ?

Your Answer

Add photo

Related Questions

  • 1986 bmw e30 323i,cranks bt wont start,pls help 3 answers

    i have a 323i which simply wont start ive had 3 dif mechanics over and all have dif answers.....i have replaced fuel pump,fuel filter,plugs,leads,distributor cap and battery....they are alll brand new...

    1986 BMW 3 Series 323i

    -

    Maintenance & Repair

  • 323i bmw losing power 1 answer

    I am having trouble with my 323i e46 bmw and need some advise our suggestion car drive but losing power not going over 40mph not overheating transmission strong And good oil good coolant good and ...

    2000 BMW 3 Series 323i

    -

    Maintenance & Repair

  • 2000 323i BMW

    I replaced the final stage resistor yet it did not fix the fan from only blowing on low speed. Any help would be greatly appreciated. Larry

    2000 BMW 3 Series 323i

    -

    Maintenance & Repair

  • BMW 2000 323i heater ac fan 4 answers

    Help anyone...my heater, ac, fan will not blow air. I have a bmw 2000 323i wagon. Fuses look good..what else can I check?

    2000 BMW 3 Series 323iT Wagon

    -

    Maintenance & Repair

  • 1996 bmw wont start 1 answer

    i own a 1996 bmw 328is and the other day it was acting up its would try and start but wouldent and when it would it would die out like it was running out of gas all of a sudden eventually it would s...

    1996 BMW 3 Series 328is

    -

    Maintenance & Repair

3 Series

Looking for a Used 3 Series in your area?

CarGurus has 30,253 nationwide 3 Series listings starting at $1,000.

ZIP:

Search BMW 3 Series Questions

BMW 3 Series Experts

#1 Tom Demyan
Tom Demyan
Reputation 4,670
#2 Robert Charlson
Robert Charlson
Reputation 1,560
#3 Michael Branan
Michael Branan
Reputation 1,210
View All

Related Models For Sale

Used BMW 5 Series
466 Great Deals out of 15,434 listings starting at $500
Used BMW M3
50 Great Deals out of 1,360 listings starting at $3,800
Used Ford Mustang
543 Great Deals out of 45,840 listings starting at $1,999
Used Honda Accord
941 Great Deals out of 77,703 listings starting at $899
Used Chevrolet Camaro
244 Great Deals out of 31,183 listings starting at $369
Used BMW 6 Series
88 Great Deals out of 2,885 listings starting at $7,200
Used BMW 7 Series
165 Great Deals out of 5,956 listings starting at $2,999
Used Dodge Charger
454 Great Deals out of 29,317 listings starting at $2,300

Used Cars For Sale

2017 BMW 3 Series For Sale
114 Great Deals out of 7,712 listings starting at $26,986
2016 BMW 3 Series For Sale
65 Great Deals out of 2,534 listings starting at $19,995
2015 BMW 3 Series For Sale
24 Great Deals out of 919 listings starting at $15,885
2014 BMW 3 Series For Sale
174 Great Deals out of 4,367 listings starting at $12,995
2013 BMW 3 Series For Sale
56 Great Deals out of 1,957 listings starting at $11,900

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.