Hi All

Driving home this evening and got almost all the way home when suddenly while driving up a small incline over a bridge the transmission dropped in to 1st gear, sat at traffic lights for a couple of minutes and for the rest of the journey (luckly only about 5 minutes) the car would not shift out of first gear when in Drive. Got home and did some tests, the transmission had logged a fault:

Mechanical Torque Converter Monitor Fault (Plausability Fault, Sporadic Fault, Fault Currently Present)

That was the only fault logged. I used the system monitor in my faultmate to record the values on the transmission and 2 possibilities really stood out:

Shift Solenoid 1: ON
Shift Solenoid 2: OFF
Shift Solenoid 3: ON

Pressure Solenoid 1: 750
Pressure Solenoid 2: 780
Pressure Solenoid 3: 780
Pressure Solenoid 4: 156
Pressure Solenoid 5: 780

Oil Temp was recorded as: 135 degrees

I used manual mode and it seemed to shift up ok.

Can anyone shed any light on to this?

The car had a brand new TC fitted and at the same time I had the box refurbished and all its serviceable parts replaced only about 2/3 years ago.

Any ideas?

Matt Current
2012 Range Rover 5.0L SC Ultimate Edition
2012 Range Rover 4.4L TDV8 Autobiography
2010 Range Rover 3.6L TDV8 Autobiography
2003 Range Rover 4.4L V8 Bespoke Vehicle

Inventor of the retro fit paddle shift and many other modifications.
Creator of the custom 2010+ RR MK4 splash screen.
Creator of the Range Rover CarPC and lots more!

Founder of Range Rover Owner
rangeroverowner.com | Facebook.com/RangeRoverOwner | Latest Videos ➞ YouTube.com/RangeRoverOwner

Ok update, have left the RR to rest for a couple of hours and just gone out and it's back to normal, driving it around the local village for a bit and all seems ok. If anyone has any idea what could have caused it I would be grateful to hear. I'm maybe thinking the box got a little too hot, was 27 degrees out and I was in stop start traffic for about an hour and a half.

Matt Current
2012 Range Rover 5.0L SC Ultimate Edition
2012 Range Rover 4.4L TDV8 Autobiography
2010 Range Rover 3.6L TDV8 Autobiography
2003 Range Rover 4.4L V8 Bespoke Vehicle

Inventor of the retro fit paddle shift and many other modifications.
Creator of the custom 2010+ RR MK4 splash screen.
Creator of the Range Rover CarPC and lots more!

Founder of Range Rover Owner
rangeroverowner.com | Facebook.com/RangeRoverOwner | Latest Videos ➞ YouTube.com/RangeRoverOwner

You will get a Trans overheat bong if it gets too hot... it then goes into a cooling strategy where it holds the gears longer to pump the oil faster to cool the box.... how old is the oil...??? Pete
__________________________________________________
2014 L405 Autobiography SDV8 4.4 Loire Blue Ebony interior
2011 L322 Vogue SE 4.4 TDV8 Baltic Blue. Parchment over Navy Interior. Sold
2012 L322 Autobiography 5.0 Supercharged Ipanema Sand, Jet Interior. Sold
2002 L322 Vogue 4.4 V8 Epson Green, Ivory over Aspen Interior (Fatty Offroader) Sold
-Click for Project Fatty off roader-

about 3/4 years oil was changed same time as refurb and TC replacement

Matt Current
2012 Range Rover 5.0L SC Ultimate Edition
2012 Range Rover 4.4L TDV8 Autobiography
2010 Range Rover 3.6L TDV8 Autobiography
2003 Range Rover 4.4L V8 Bespoke Vehicle

Inventor of the retro fit paddle shift and many other modifications.
Creator of the custom 2010+ RR MK4 splash screen.
Creator of the Range Rover CarPC and lots more!

Founder of Range Rover Owner
rangeroverowner.com | Facebook.com/RangeRoverOwner | Latest Videos ➞ YouTube.com/RangeRoverOwner

Could be a spec of dirt got caught in the valve body... maybe an oil change would help... just guessing here... Pete
__________________________________________________
2014 L405 Autobiography SDV8 4.4 Loire Blue Ebony interior
2011 L322 Vogue SE 4.4 TDV8 Baltic Blue. Parchment over Navy Interior. Sold
2012 L322 Autobiography 5.0 Supercharged Ipanema Sand, Jet Interior. Sold
2002 L322 Vogue 4.4 V8 Epson Green, Ivory over Aspen Interior (Fatty Offroader) Sold
-Click for Project Fatty off roader-

Been driving today gearbox seems to behaving however the same error description has been logged again after clearing it.

Need to workout what the error is saying.

Matt Current
2012 Range Rover 5.0L SC Ultimate Edition
2012 Range Rover 4.4L TDV8 Autobiography
2010 Range Rover 3.6L TDV8 Autobiography
2003 Range Rover 4.4L V8 Bespoke Vehicle

Inventor of the retro fit paddle shift and many other modifications.
Creator of the custom 2010+ RR MK4 splash screen.
Creator of the Range Rover CarPC and lots more!

Founder of Range Rover Owner
rangeroverowner.com | Facebook.com/RangeRoverOwner | Latest Videos ➞ YouTube.com/RangeRoverOwner