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355 Battery is Fine But Car Won't Start...Starter??

Discussion in '348/355' started by MK355, Jul 7, 2025 at 7:30 AM.

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  1. MK355

    MK355 Karting
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    #1 MK355, Jul 7, 2025 at 7:30 AM
    I drive my F355 regularly, 2-4 times a week. I drove it about 30 miles last Wednesday with multiple stops where car was turned off and on several times. Zero issues. The next morning the car does not start. Battery is fully charged everything in the car turns on but the engine doesn't crank at all. This is my first issue with the car after over a year. Does this seem like a starter issue? Any ideas or things I can check?

    Thank you
     
  2. yelcab

    yelcab F1 World Champ
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    #2 yelcab, Jul 7, 2025 at 8:06 AM
    Check the battery posts and terminals.
    I assume you de-activated the immobilizer before starting the car.
    Then monitor the voltage the starter when you turn the key on. How much voltage are you seeing?
    If everything checked out, then the remainder is the starter.
     
  3. MK355

    MK355 Karting
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    #3 MK355, Jul 7, 2025 at 8:18 AM
    How does one deactivate the immobilizer? I’ve never had to do anything to start the car besides push the clutch in and turn the key.
     
  4. yelcab

    yelcab F1 World Champ
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    #4 yelcab, Jul 7, 2025 at 8:52 AM
    What year is your 355?
     
  5. fdekeu

    fdekeu Formula Junior
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    #5 fdekeu, Jul 7, 2025 at 9:10 AM
    Normally you have to push the button on the 'alarm' module to deactivate
    Early 355s (2.7?) did not have an immobiliser
    Check battery posts and grounds as yelcab suggested
    Check voltage at the starter
    Feed the starter with a separate battery if necessary
     
  6. MK355

    MK355 Karting
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    #6 MK355, Jul 7, 2025 at 9:16 AM
    I have a 2.7 ‘95

    Thanks for feedback. I’ll check voltage
     
  7. 308 GTB

    308 GTB F1 World Champ
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    #7 308 GTB, Jul 7, 2025 at 4:21 PM
    Another possibility is that you might have a dead spot on the starter commutator or bad brushes.

    This has happened to my F355 Challenge car several years ago. Rocking the car while in gear (I used 2nd gear) moved the starter motor armature a bit and enabled me to start the engine.

    Important: Make sure the ignition is OFF.
     
    Qavion likes this.

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