BushInOz

We have travelled from Adelaide to Brisbane to visit our son. We plan to return via South East coast. So far, the car drove perfectly. Driving around Brisbane was fine too. Yesterday (Saturday) went for a drive to see grandkids playing soccer. Returned home. While the engine was still hot, started the car as usual. Still in Park gear. Turned on the A/C. The car engine shook like a wet dog then stopped. Turned off the A/C. Restarted the car. Started Ok. Put gear in Drive. Very reluctant to go up the drive. Managed to get on to road but lost power. Parked by the side of the road. Checked engine oil, gearbox oil, coolant level all OK. Called RAA. Their Road Service guy arrived. He started the car. Turned it off. Said to me, "Your engine is very sick". Then he asked me to contact the nearby mechanic on Monday morning to make a booking, and call RAA back for a tow truck. HE did nothing else! No diagnostics using any code readers. Please help. What can I do in the meanwhile. I have purchased new platinum plugs last afternoon but it is raining at the moment (Sunday morning).

I have a diesel (YD25) 2006 Pathfinder 7 seater R51 (Made in Spain). The cruise control stops working on a hot day. It usually works when the engine is cool but after a few hundred kms it disengages and refuses to lock (Set or Resume). It works the next day but may have the same symptom again. Having had electronics background I am good with a soldering iron and am wondering if this may be a dry joint problem in a relay or a pc board. Where do I start looking for such items? That is, if that is likely to be the problem. Thank you