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Oldsmobile
Alero
Engine
Symptoms
Not Running
Cranks but will not start
ERICSNYDER011
MEMBER
2004 OLDSMOBILE ALERO
3.4L
6 CYL
2WD
AUTOMATIC
190,000 MILES
I have crank but I have no spark. Changed ECM, coil packs, etc.
Do you
have the same problem?
Yes
No
Tuesday, March 24th, 2020 AT 5:57 AM
3 Replies
ASEMASTER6371
EXPERT
Good morning,
You need fuel, spark and compression for it to run.
https://www.2carpros.com/articles/car-cranks-but-wont-start
Did you check the fuel pressure? Can you hear the fuel pump run?
https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator
Did you check for spark? Check at the spark plug while cranking.
https://www.2carpros.com/articles/how-to-test-an-ignition-system
Did you check for compression?
https://www.2carpros.com/articles/how-to-test-engine-compression
Did you have your replacement ECM programmed to your VIN number?
Roy
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Tuesday, March 24th, 2020 AT 6:06 AM
ERICSNYDER011
MEMBER
I have done all but program the ECM to my VIN wasn't sure you had to.
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Wednesday, March 25th, 2020 AT 9:32 PM
ASEMASTER6371
EXPERT
Yes, you must for it to operate correctly.
What were the results of all the tests I suggested?
Roy
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Thursday, March 26th, 2020 AT 4:49 AM
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