Transmission problem

Discussion in 'Technical' started by L50watts, Dec 14, 2011.

  1. L50watts

    L50watts Member

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    So, I have a 2001 4.6 Dohc with the Tremec 3650 5spd trans.

    I have looked all over the Mustang forum boards for someone posting about my problem.... no luck. So I figure someone here will steer me in the right direction.

    When coming up to a stop around 1 or 2 mph I can no longer get it into 1st gear without grinding it and forcing it in gear. This problem came on suddenly... no warning that something was starting to go bad.

    So far all I have done is a fluid change wich did nothing for my 1st gear problem but made the rest of the gears shift more smoothly.

    One thing I did to try to rule out clutch problem is roll forward about 5 mph then depress clutch pedal and shift into reverse.... well, it shifts smoothly into reverse. So I am thinking a Trans problem and not a clutch problem. I have a firm clutch pedal and it shifts smooth as silk into all gears except 1st
     
    L50watts, Dec 14, 2011
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  2. yellow75

    yellow75 MCCI Oregon State Rep Supporting Member

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    Sounds like syncro or shifting fork, does it ever pop out of gear?
     
    yellow75, Dec 14, 2011
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  3. L50watts

    L50watts Member

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    NO, never has popped out of gear
     
    L50watts, Dec 14, 2011
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  4. Mavman72

    Mavman72 Gone backwards but lookin' forward

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    The 3650 is known for eating synchros on 1st gear when shifting to 1st repeatedly with the vehicle still moving.
     
    Mavman72, Dec 14, 2011
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  5. L50watts

    L50watts Member

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    Yep, that's the info I got over on one of the mustang boards... they also mentioned a "blocker ring" ( works with the syncro) could of gone bad

    Thanks for the info Mavman !!
     
    L50watts, Dec 15, 2011
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  6. Clintd

    Clintd Member

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    Blocker ring is just another name for a syncro ring.
     
    Clintd, Dec 15, 2011
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