Delayed reverse S1 4AT 2nd tranny
10-02-2019, 02:47 PM
#1
Delayed reverse S1 4AT 2nd tranny
new member but not to rx i bought a s1 for $800 with a "bad trans" ok it had 116k on it still good. The trans had a severe delay going into reverse if you reved it it slamed hard into gear. So i droped the pan cleaned out the screen nothing alarming . Flushed the oil three or for times it got much better then sarted getting worse again. So off to pick a pull grabbed a used trans worked perfectly. Now two months later this trans is doing the exact same thing. Could the trans computer be bad or is it built into the ecu? If its separate where is it? I know most people wont mess with at rebuilds but they are easy to rebuild i just wonder if anyone has had similar problems. It seams like line pressure is low aka front pump worn it acts the worst when cold.
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