Sam McGoo
Member
- Messages
- 1,797
I'm getting the dreaded 'check transmission go to dealer' message.
In manual mode, won't go above 2nd gear... well it goes into 3rd, then immediately drops back down to 2nd and is not happy at all.
In auto, will go through the gears begrudgingly but fault alarms nearly everytime it changes up for a second or two then clears. No problem downshifting.
No stored codes (other than a couple of front parking sensors)
Have done battery disconnect etc...
Battery is good, 12.7v cold, 14.5v when engine running. Was replaced 12mths ago at sportsitalia. Terminals are tight.
Car is used regularly, but on the c-tek once a week overnight if it has not been used.
2013 (MY14) GranTurismo Sport MC-Shift (gearbox model CFC301) so using the Ferrari 599 301F software on the x431 as that seems to work best.
Launch x431 shows 13v at gearbox.
Have tried various clutch PIS from 3.9 to 4.3 and gearbox relearns, no change. (back at 4.19)
Hyd pressure between 45 and 52 bar.
Clutch actuator pressure 20bar
Clutch wear index 4000, showing 37% worn although on circa 36000miles, so possible clutch territory.
leakage with valves on 10.2cc, leakage with valves off 2.4cc
Think all the above seems good?
Changed an abs / wheel speed sensor 5 weeks and approx 700miles ago and all has been well since. Have checked the live data and all 4 are still reading the same speed when driving.
Any guidance on what to do/check next?
Any other tests, adjustments or info I can get from the Launch x431?
Would a clutch position sensor always throw a code?
Does a worn clutch not throw any codes?
Have had zero clutch slippage and drove perfect on the previous journeys.
Any help would be much appreciated.
In manual mode, won't go above 2nd gear... well it goes into 3rd, then immediately drops back down to 2nd and is not happy at all.
In auto, will go through the gears begrudgingly but fault alarms nearly everytime it changes up for a second or two then clears. No problem downshifting.
No stored codes (other than a couple of front parking sensors)
Have done battery disconnect etc...
Battery is good, 12.7v cold, 14.5v when engine running. Was replaced 12mths ago at sportsitalia. Terminals are tight.
Car is used regularly, but on the c-tek once a week overnight if it has not been used.
2013 (MY14) GranTurismo Sport MC-Shift (gearbox model CFC301) so using the Ferrari 599 301F software on the x431 as that seems to work best.
Launch x431 shows 13v at gearbox.
Have tried various clutch PIS from 3.9 to 4.3 and gearbox relearns, no change. (back at 4.19)
Hyd pressure between 45 and 52 bar.
Clutch actuator pressure 20bar
Clutch wear index 4000, showing 37% worn although on circa 36000miles, so possible clutch territory.
leakage with valves on 10.2cc, leakage with valves off 2.4cc
Think all the above seems good?
Changed an abs / wheel speed sensor 5 weeks and approx 700miles ago and all has been well since. Have checked the live data and all 4 are still reading the same speed when driving.
Any guidance on what to do/check next?
Any other tests, adjustments or info I can get from the Launch x431?
Would a clutch position sensor always throw a code?
Does a worn clutch not throw any codes?
Have had zero clutch slippage and drove perfect on the previous journeys.
Any help would be much appreciated.
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