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- - trans code 742 (https://www.gmforum.com/2000-2005-90/trans-code-742-a-308525/)

farmall

12-27-2014 02:13 PM

trans code 742

2002 Bonneville ssei every couple weeks trans gets jerky seems like your in to high of gear . then it will have code 742. then it will go away for a week or two. what is involved to repair this?

Tech II

12-27-2014 10:34 PM

P0742 may cause full line pressure apply, causing harsh shifts....

Usually is, tcc stays engaged...could be bad TCC solenoid, fluid circuit, harness, etc.

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