When I started the truck ( around 1 Celsius) gave a 6-7 minute warm up idled down the driveway to the gate couple hundred feet. When I went to pull out on the road the truck hesitated , chugged, blew blue smoke. Stopped to close the gate and it did the same thing again. Drove a bit had to stop and start again was good. Drove 20 minutes was parked for 6 hours started and drove fine home. Started the next day chugged and blew blue , kicked up the idle for 5 minutes it chugged and blew a couple times then was fine.
new fuel filter on order any other ideas??
deleted 6.7 with bully dog no dtc’s showing ??

 

Blue smoke is oil. How many miles on it?

 

It’s only got 206,000 km
mostly just gets used for pulling the horse trailer

 

Valve seals?

 

I hope not, will have to do some more research
any ideas or links on how to check?

 

At 128K, it wouldn't surprise me..... No idea how you would check them, without physically removing them, and if you are going to that, might just as well replace them.

 

Guess they aren’t building them like they used too , had a 93 with almost 700 k no engine issues