147 Stalling/Selespeed Problem
After two years of reliable service, I have had a couple malfunctions that could be linked. Firstly, the engine has taken to nearly stalling when cold and slowly coming to rest. This occurs even with few electrical loads on. Secondly, on one occassion the Selespeed refused to declutch at all and forced me to a halt in gear with the engine stalled and the dreaded selespeed system failure warning. This morning I got the near stall followed by the selespeed and low engine oil pressure warnings but was able to drive on with no subsequent problems.
Hence, I think the stalling occurs when the clutch disengages in order to downshift and this confuses the selespeed. Perhaps the near-stall upsets the supply voltage which, in turn, upsets the Selespeed control unit.
This would make the stalling the root cause of the problem. I have seen dirty throttle bodies mentioned on this forum, along with dire warnings about messing with the by-wire system. It's also (over)due its 24000 mile service; will that help? Any thoughts?
"Diesel - Green Fuel of the Future" - Lucas Diesel Systems slogan circa 1992