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not sure where you are located, but a trip to a shop that is able to do a tuneup would be a good idea. Have the valves set, injector pump timed and injectors cleaned. Your truck will thank you. I took mine to cvi in Richmond BC. It was well worth the trip.

Thanks for that! Yes, I've heard and read about CVI in Richmond BC, only wish there was someone like them in Calgary...
Would anyone have feedback on Pro Active? I hear both pro's and con's on the Delica site - more pro's than con's mind you.
I read here that the resistance on the glow plugs should be around 1.0 OHM and mine are all 0.4 OHM. So that's why I now suspect the glow plugs more than anything, if glow plugs do in fact go bad but still light. If my high school memory is correct, less resistance = less heat?