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Venture 1997-2005
This minivan from Chevy offers a sporty look as well as all of the modern additons of the minivan market.
Platform: U-Body

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Old 09-26-2011, 06:27 PM
CF Beginner
Join Date: Sep 2010
Posts: 4
Default Code po742

When i got my 1999 chevy venture van it was shifting really hard so i put some sea foam in and put it on my computer code i got was po742 so i reset comp to get rid of code and that worked till today i was driving it and the light come on again got same code so i reset again and test drove it and light is off and drives fine could someone tell me what could be wrong with it thanks
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Old 09-26-2011, 09:48 PM
CF Veteran
Join Date: Mar 2011
Posts: 1,706

Transaxle code P0742 says the TCC release switch circuit was closed (indicating the TCC was applied) while the TCC was commanded off. The problem could be electrical like a short in the circuit or mechanical like a faulty TFP valve position switch, sediment in the valve body, faulty TCC mechanism, etc. Check the fluid level if you can and, if not that, take it in for service.
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02, 1999, 742, chavrolet, chevrolet, chevy, code, computer, gm, po, po742, po742c, seafoam, service, venture

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