2004 TD6, gearbox was re-built 15 months ago, no problems for 12 months until i put the caravan on, after 1 mile 'clunk' - Trans Fail, just as i was starting from standstill in traffic, i pulled over and 'phoned a friend' who suggested cycling the ignition, this reset the problem and we continued on our way until we met with a few hills and it did it again several times so had to pull over and get recovered home (4 hours later!, kids not impressed!), tried to drive it next day and it was ok all week until i stopped for fuel, when i tried to drive away it felt like 'clutch slip'- engine revving but 10% drive, then 'clunk' -Trans Fail, i cycled the ignition again and all was well for another week then it did it again, this time i noticed the temp gauge was reading 50%- i found that it only happened on warm days when the cab heating was selected to 'off' and if the engine was switched off briefly, it was ok if left to cool down for 1/2 hour or so, i diagnosed that the viscous fan wasn't doing anything and replaced it, this has helped but it's still doing it, i can drive it all day no problem until i stop for 5 mins so it seems like it must be heat soaking back to the box somehow???
What i don't understand is why it doesn't throw up 'transmission overheat' before going into 'Trans fail'
RRPhil?
What next??? Trans cooler???
I've just had to shell out £600 for turbo rebuild too but at least it's running ok now. I'll have to say that i'm reasonably surprised now if i actually finish my journey without having to call Greenflag...
Thanks,
John.
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