I have an intermittent problem with a 95 Troopie 1HZ that has me (and others) at the tearing hair stage!
Started after it had been unused for a while (garaged by RACQ and run regularly) while I was overseas. Now been present on and off for nearly 12 months, so hair is getting thin!
At first everything seemed OK, then a couple of times a few minutes down the road after starting normally it would hesitiate, miss, partly die, and on a couple of occasions stopped dead. Most embarassing in traffic! But then start and run perfectly a couple of minutes later.
Twice now on a 150k highway run it has coughed, spluttered etc etc to the stage where it would hardly keep going, first time so bad I had to stop but after a few minutes to
check for anything obvious it started perfectly and completed the rest of the journey without a murmer. Second time (last Sunday) kept going and eventually came good itself!
Third problem, very occasionally, after standing for a couple of days refuses to start, then eventually does after excessive cranking and/or manual fuel pump. Seems to be mainly in hot weather.
Generally runs very smoothly, plenty of power, cruises the highway at 110k+, no problems in traffic around
Brisbane's hills.
I have gone over it many times for anything obvious as have various other
places during
services, blown out hoses etc but usually when it's being serviced it runs perfectly - what else?
Things it is not:
Fuel in both tanks clean, tanks alternated
Fuel Filters clean, no sign of water or dirt
Tank changeover valves working OK, problem occurs on either tank
Fuel cut solenoid clean and working OK
No obvious leaks (air or fuel)
Most time starts at first flick of key without cranking
Battery OK (replaced recently due to old age, problem still there)
Glow plug supply and timer OK
No smoke black,white or any other colour
Happens hot or cold
If it was petrol I'd suspect plug, distributor, condenser etc but diesels are not supposed to need these.
If it was fuel pump or injector it should be there all the time or get progressively worse. Same for a leak.
Perhaps it's just like me and getting on a bit so sometimes just does not feel like performing!
Before going for a full injection pump overhaul, with associated big $$$, any ideas and suggestions welcomed.
Apologies for the length of the post, but trying to give the full picture.
Rob