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Showing results for tags 'unneeded downshifting'.
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00 lego L w/ auto trans, 85k miles. i bought it about 1500 miles ago with the ''slow to engage'' issue. i aded some trans-x and it cleared it right up. about 500 miles after purchase, it got rod knock the engine quit. i bought a replacement 01 engine and used my heads and intake on the short block. back on the road with no issues until now. last week i repalced the RF axle and on start up i had 4 cels. i checked the main connectors on the rear of the engine and sprayed them with MAF claener. its all i had. reseated the connector and all was well. a few days later on the hiway the car suddenly downshifts to 3 for no apparent reason while running at 60 - 65mph. then up to 4 then down to 3. and then a flashing AT Temp light. get to the store , turn it off and back on expecting a flashing AT Templight at start up, but NO. NO flashing lights and NO CEL. i was hopping for it to be the trans connector on the rear of the engine , but i reseated it and there was no ''apparent'' contamination and no improvement afterwards. it was not completely seated but it is now. the car drove the same on the test drive. so it does not seem that was the issue. just a coincedence. fluid is good color and level. i was thinking i might do a drain and fill with some trans-x, just for grins. no CELs, no flashing ATTemp light at start up. it will down shift with the least bit of throttle. occasionally it feels as though it is in FWD, other times i THINK i feel a little binding. sometimes it will hold a gear too long before shifting. and it has a harder than normal 1-2 shift. if i shift into 2, it will not down shift. and of course in 1 it can't, there is nowhere to go. but in 4 or 3 it will down shift any time it likes. it usually upsifts pretty quickly afterward, but not always. the ATTemp light is not always flashing when it is acting up, and turning it off and back on will usually clear the flashing. help me please, i'm beginnig to think about a trip to the dealer. i did find one thread with a flashing AT Temp light on a 96 while driving. but there wasn't really any conclusive solution reported back. he took it to the dealer and they ''said it was a ground wire''. thanks, john