Question about 2002 Hyundai Accent
Original tranny had code P0734, they replaced. Then next tranny they said had some internal failure so they replaced it. The third tranny is doing the same as the second. Problem is an intermittent RPM surge between 65 -72mph. The 2nd tranny never threw a code nor does the current but the problem exists and until I can get a mech to eye witness the problem (surge) they can't do anything. I only have 23000 miles left on my warranty.........suggestions???
Take it back to the dealer and have them test the TPS. The PCM takes information from the TPS to control the transmission fluid pressure that controls the firmness of the shifts and the amount of fluid pressure to hole the gears in place. The reading from the TPS should be smooth and constant. it the TPS passed then it's a good chance that your looking at another transmission. P0734 mean's the 4th gears are slipping. Good luck and hope this helps. Keep me posted, be glad to help.
Posted on Jun 16, 2009
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Posted on Jan 02, 2017
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