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Lock Up?

Discussion in 'The Garage' started by JIMMY76, Jul 23, 2005.

  1. JIMMY76

    JIMMY76 1/2 ton status

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    I Just Bought A 89 Burban How Can I Tell If The Coverter Is Locking Up Sorry For The Dumb Question But I Don't Know Auto Trannies To Well
     
  2. beater_k20

    beater_k20 Banned

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    hook up a tach, and watch for 4 rpm drops as it shifts gears. you'll have one at the 1-2, the 2-3, the 3-4, and one when the converter locks in 4th
     
  3. MTMike

    MTMike 1/2 ton status

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    It feels kinda like it's upshifting 1/2 gear..... it's only a couple hundred RPM drop. In my Dodge it's very noticable. It also should only lock up in D and OD.
     
  4. jtl_77

    jtl_77 Registered Member

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    Drive it down the road. Let it get into od. Then while giving it enough gas to keep going put the brakes on a little with your other foot. You should be able to hear the rpm's go up a little when the converter unlocks. Let off the brake ( still giving it some gas) and the rpm's will drop when the converter locks up.
     

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