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2004 Grand Cherokee no TCC engagement
09-21-2013, 08:40 PM (This post was last modified: 09-21-2013 08:43 PM by Rupe.)
Post: #2
RE: 2004 Grand Cherokee no TCC engagement
Could be one of several things. There's a temp sensor on some units to keep it from going into lock up when the oil is cold and I believe there's also a pressure sensor to tell the ECM what's going on. Then of course there's the TCC solenoid on the back of the valve body (inside the pan) that could just be open circuit or sticking. Something along these lines might be better diagnosed with a full function scanner where you can request a specific function to see what happens.

Maybe one of our other moderators has something to add. He used to work in a trany shop and might be more familiar with this specific problem.

If you can get us a bit more info, like the trany model, engine size, and mileage on the vehicle it may help.

BTW, here's an article with a pic so maybe you can identify the TCC sol plug and do an ohm meter test. (this guy has the TCC stuck in lock up)
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RE: 2004 Grand Cherokee no TCC engagement - Rupe - 09-21-2013 08:40 PM

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