This is what your codes mean:
Trouble Code-P0734 (
A/T Additional Gear Ratio Error In Fourth Gear)
Trouble Code Conditions:
Vehicle driven to a speed of 4-37 mph at more than 500 rpm, gear selector in 4th Gear in Drive, and the PCM detected too much difference in the engine speed and output shaft speed.
Possible Causes:
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Customer may complain of intermittent 4th gear operation
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O/D and 2/4 pressures less than 75 psi
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O/D or 2/4 clutch volume indexes out of specification
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O/D accumulator seals are damaged
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Transmission enters "limp in" mode running in 4th gear
Trouble Code-P0735 (
A/T Gear Ratio Error Fourth Prime)
Trouble Code Conditions:
Vehicle driven any forward Gear, and the TCM detected the ratio of the Input speed to the Output Speed did not match the current Gear Ratio (this test can take up to 5 minutes).
Possible Causes:
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Related Gear Ratio trouble codes may be stored (note that some of these Gear Ratio trouble codes may be intermittent)
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Transmission has internal problems or damage present
You have a transmission problem.
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