Car dies immediately after starting


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Car dies immediately after starting

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Sbe28
New User

Aug 10, 2023, 4:34 AM

Post #1 of 3 (1323 views)

Car dies immediately after starting	Sign In

Hello I have a 1983 bmw 528e car has been running good for a while. On my way to the gym one day the car died while decelerating but started again once I pulled over. On my way back home it ran perfectly. Today I tried to drive it again and it starts but within 3-5 seconds the engine stalls. I sounds like ignition is cutting because it immediately turns off without hesitation. Thank you in Advance.

Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Aug 10, 2023, 6:40 AM

Post #2 of 3 (1312 views)

Re: Car dies immediately after starting	Sign In

Could be ignition, could also be fuel or computer related.

All "crank, no start" conditions are approached in the same way. Every engine requires certain functions to be able to run. Some of these functions rely on specific components to work and some components are part of more than one function so it is important to see the whole picture to be able to conclude anything about what may have failed. Also, these functions can ONLY be tested during the failure. Any other time and they will simply test good because the problem isn't present at the moment.
If you approach this in any other way, you are merely guessing and that only serves to replace unnecessary parts and wastes money.

Every engine requires spark, fuel and compression to run. That's what we have to look for.

These are the basics that need to be tested and will give us the info required to isolate a cause.

1) Test for spark at the plug end of the wire using a spark tester. If none found, check for power supply on the + terminal of the coil with the key on.

2) Test for injector pulse using a small bulb called a noid light. If none found, check for power supply at one side of the injector with the key on.

3) Use a fuel pressure gauge to test for correct fuel pressure, also noticing if the pressure holds when key is shut off.

Once you have determined which one or combination of these functions has dropped out,
you will know which system is having the problem.

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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.

Sbe28
New User

Aug 10, 2023, 7:44 AM

Post #3 of 3 (1305 views)

Re: Car dies immediately after starting	Sign In

Thanks

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