[caronell]

On 4 occasions over the past month, while driving normally, I've heard a very loud "clunk" and the auto trans in my car drops into third and stays there.  On the 3rd occasion - a fault light appeared on the dashboard. Once I cut the engine and then restart it goes away and drives normally until the next time (which happened again tonight).  A week ago I took it to dealer, they did diagnostics and replaced a solenoid.  Fault codes logged were P0743 and P0760 - they checked valves and connections and it appeared to be ok - until a week and a half later (tonight) when it's happened again. I see in OS forums the odd mention of this - dealer says if the problem doesn't happen when they test drive it, they cant fix it - but it's so intermittent that we can't MAKE it happen..  Any ideas?

[eye30]

Would it be possible to drive to the dealers when it happens so they can actually see the fault in action

[elantraelite]

Im assuming you have an FD i30.

There is plenty evidence on this forum that these autos do have a common issue.

I'd suggest pushing the dealer to have the transmission sorted while you have the warranty.

If the dealer your dealing with is no help, try another and dont take no for an answer.

If I remember right the value body is apart of the issue. Sorry im not more specify (manual driver here).