Guess I spoke to soon about my good luck with my cab and chassis.
Going on a short run today, I shut my engine off while loading and when I tried to start back up the engine was just barely running and I had a dead accelerator. I shut the truck off to check for codes, there were none and restarted it. It ran fine, no problems at all. Went and completed the job, never shut the engine off, and went back to the yard. I decided to go home for lunch, the truck restarted fine and I forgot about the problem. After lunch I was called for another job and the truck would not start. Now the symptoms.
The engine, when it turned over acted like it had no compression, it would just spin. There was no check engine light, no codes, nothing. The lift pump was working, I could hear it. Got it to the dealer, they could find no codes, couldn't figure out what to do, then it just started. It is running fine, like nothing happened. To me, that is the worst thing that could have happened. Now I don't know what to expect, when will it happen again and where will I be when it happens. Today, I was in my driveway, 1/2 mile from the dealer, next time I could be 500 or 1000 miles away.
Tomorrow they are going to call star and try to find some answers about the seemingly lack of compression. Question to you techs, when the injectors are firing extra fuel for a regen, do the exhaust valves stay open or not stay closed as long as normal in order for the extra fuel to get into the exhaust stream? If so, could a computer glitch have caused them, the valves, to remain open and not let the truck start? Or, am I totally wrong on how the extra fuel gets into the exhaust stream.
Going on a short run today, I shut my engine off while loading and when I tried to start back up the engine was just barely running and I had a dead accelerator. I shut the truck off to check for codes, there were none and restarted it. It ran fine, no problems at all. Went and completed the job, never shut the engine off, and went back to the yard. I decided to go home for lunch, the truck restarted fine and I forgot about the problem. After lunch I was called for another job and the truck would not start. Now the symptoms.
The engine, when it turned over acted like it had no compression, it would just spin. There was no check engine light, no codes, nothing. The lift pump was working, I could hear it. Got it to the dealer, they could find no codes, couldn't figure out what to do, then it just started. It is running fine, like nothing happened. To me, that is the worst thing that could have happened. Now I don't know what to expect, when will it happen again and where will I be when it happens. Today, I was in my driveway, 1/2 mile from the dealer, next time I could be 500 or 1000 miles away.
Tomorrow they are going to call star and try to find some answers about the seemingly lack of compression. Question to you techs, when the injectors are firing extra fuel for a regen, do the exhaust valves stay open or not stay closed as long as normal in order for the extra fuel to get into the exhaust stream? If so, could a computer glitch have caused them, the valves, to remain open and not let the truck start? Or, am I totally wrong on how the extra fuel gets into the exhaust stream.