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    jbanda's Avatar
    jbanda Posts: 1, Reputation: 1
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    #1

    Dec 16, 2010, 08:28 PM
    94 chevy truck runs at 10 mph only
    I just put a rebuilt transmission ran good for a week . Now it runs at 10mph before I start to take it apart . What should I look into first.
    TxGreaseMonkey's Avatar
    TxGreaseMonkey Posts: 16,761, Reputation: 5597
    Uber Member
    		  
    #2

    Dec 16, 2010, 08:38 PM

    . Ensure the PCM is good.

    . Clean main PCM ground.

    . Check electrical connections.

    . Test all under hood and under dash fuses with a test light or multimeter:

    https://www.askmehelpdesk.com/cars-t...tml#post252145

    . Check fluid level.

    . Drop pan and verify the filter/pickup is fully seated in the valve body of the transmission. The O-ring on the filter needs to seal properly. If the filter/pickup falls out, hydraulic pressures will plummet.
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