Do I have a vacuum leak?

Discussion in 'Classic Mustang Specific Tech' started by SR97GT66, Dec 7, 2003.


  1. SR97GT66

    SR97GT66 New Member

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    Now that I've got my '66 running, when I hit the gas the car barely goes. I was flooring it and going like 15 mph. Basically it seemed like it wasn't shifting into second gear. What could be causing this? A vacuum leak maybe? It's a 289 w/ a c4. This was never a problem before I let it sit for 8 months. I added some tranny sealer to see if that would help but no luck. Thanks.
    -Scott
  2. pabear89

    pabear89 Active Member

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    Check the trans fluid level, sounds like it's low.

    PB
  3. SR97GT66

    SR97GT66 New Member

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    I did that already. It was low after we got it started but I filled it up.
  4. pabear89

    pabear89 Active Member

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    Did you run it thru the gear pattern then recheck the fluid level?
    they will sometimes need more fluid after it has pumped thru the system.

    PB
  5. SR97GT66

    SR97GT66 New Member

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    No I didn't recheck the level I'll do that once these 20+ inches of snow melts. :D Thanks.
    -Scott

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