cm. New Member 23 Member For: 5y 6m 22d Posted 04/01/20 05:28 AM Share Posted 04/01/20 05:28 AM Hi All, Just want to see if anyone else has had this issue before. I have a 2013 FG XR6 MK II sedan. After the tranny is warmed up, if I drive at around 70kph up a slight hill, very light throttle, I can start to hear a low rumbling noise in the transmission. If I put my foot down a bit the tranny will do a bit of a harsh shift and the noise will go away. Also seems to go away if I just increase throttle. My box has about 145,000km and I have done a full service on it (mech seal, valve seal, mech adapter, gulf western oil). I have noticed the noise for quite some time now - probably close to a year. The tranny service made it better for a little bit but seems to be coming back again. I'll take it to a ford dealer for a diagnosis but want to see if there were any opinions on here. Other than Ford, any recommended transmission shops? I'm in Perth. Cheers, Link to comment Share on other sites More sharing options...
k31th less WHY; more WOT Site Developer 28,277 Member For: 16y 6d Gender: Male Location: Melbourne Posted 04/01/20 05:33 AM Share Posted 04/01/20 05:33 AM sounds pretty normal that the gearbox is getting to it's torque detection point or throttle opening point and it's just about to need a lower gear number, but if you don't get to this "detent" point, it will stay in a situation where the gearbox is in an unfavourable load position. Link to comment Share on other sites More sharing options...
cm. New Member 23 Member For: 5y 6m 22d Posted 04/01/20 05:42 AM Author Share Posted 04/01/20 05:42 AM Ok, is it worth resetting ZF adaptations? I can do it through Forscan from memory. Link to comment Share on other sites More sharing options...
k31th less WHY; more WOT Site Developer 28,277 Member For: 16y 6d Gender: Male Location: Melbourne Posted 04/01/20 06:29 AM Share Posted 04/01/20 06:29 AM nah, just leave it and if you hear it happening either take a bit of throttle off or add a bit (depending on the scenario) and it should be easy enough to get rid of with applying less torque (less throttle) or getting to a more favourable gear (more throttle - detent reached)... Link to comment Share on other sites More sharing options...
cm. New Member 23 Member For: 5y 6m 22d Posted 04/01/20 08:42 AM Author Share Posted 04/01/20 08:42 AM Ok so basically what I am doing anyway - that's good to know. What could be wearing for this sound to occur? Insufficient clamping force on the lock-up clutch? Is it better to take the car to ford for diagnosis or a tranny specialist? Link to comment Share on other sites More sharing options...
k31th less WHY; more WOT Site Developer 28,277 Member For: 16y 6d Gender: Male Location: Melbourne Posted 04/01/20 09:01 AM Share Posted 04/01/20 09:01 AM just the groan gears make when they're struggling to rotate one another... slowly wearing out the planetary gears but no big deal as long as you don't do it often and to be mechanically sympathetic you should avoid it. you can take it to a specialist if you want to get peace of mind. Link to comment Share on other sites More sharing options...
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