Bought this nice running northstar with tranny 4t80e THAT WILL NOT SHIFT OUT OF 1ST gear, fluid looks good and clear, I added 1 pint tranny fix, have driven 40 miles in 1st gear, turns 3350 rpm at 50 mph, have tried to manually shift, speedo still worksproperly. Display says to service transmission, check oil level( even after I changed engine oil and filter.) Only 2 codes appear. PO420 Catalyst. And PO741, say's torque converter clutch solonoid. Or stuck off
have the same problem?
Sunday, January 15th, 2012 AT 11:05 PM