kuhlrover
02-11-2013, 16:43
I have a 1998 Sub with the 6.5L Turbo with 183K on it. I have only had it for 6K miles. I noticed this summer when driving at a steady throttle that it stumbled a couple of times. The engine didn't die but it was noticable in the seat of the pants. This last Saturday, it was 45 degrees out, I was 5 miles from the house cruising at 55 mph and the engine flat out died. I coasted to the side of the road. The engine start right up but then died again after moving 20 feet. I had it towed home where I was able to start it up and move it around the drive way.
From what I can tell the previous owner never changed the FSD module. There is still a black module strapped to the side of the pump and I can't find an FSD module in the receipts. I have ordered a remote kit and module from Pensicola Diesel today. I also changed the fuel filter. I am a firm believer that first thing you do when a diesel acts up is to change the filter. The filter element was black but I saw nothing that looked abnormal. I used a new NAPA filter #3976. It still had the old filter NAPA #3376. I assume NAPA discontinued the 3376 filter.
I have read the other posts about the lift pump and oil pressure switch. The lift pump appears to be pumping. When I changed the filter with the drain cock open, it was pumping diesel out when I turned the key on. I don't have a pressure guage to check the actual fuel pressure. I ran the truck at idle and a high idle for 5 minutes after changing the filter to make sure I got all the air bubbles out. The truck ran fine.
If anyone else has some insight, I am all ears. I will replace the FSD as soon it shows up but I have a long trip coming up in a few days and not a lot of time to do a lot of test driving before I leave. Oh, I should also mention that I checked the computer and there were no error codes.
Tim
From what I can tell the previous owner never changed the FSD module. There is still a black module strapped to the side of the pump and I can't find an FSD module in the receipts. I have ordered a remote kit and module from Pensicola Diesel today. I also changed the fuel filter. I am a firm believer that first thing you do when a diesel acts up is to change the filter. The filter element was black but I saw nothing that looked abnormal. I used a new NAPA filter #3976. It still had the old filter NAPA #3376. I assume NAPA discontinued the 3376 filter.
I have read the other posts about the lift pump and oil pressure switch. The lift pump appears to be pumping. When I changed the filter with the drain cock open, it was pumping diesel out when I turned the key on. I don't have a pressure guage to check the actual fuel pressure. I ran the truck at idle and a high idle for 5 minutes after changing the filter to make sure I got all the air bubbles out. The truck ran fine.
If anyone else has some insight, I am all ears. I will replace the FSD as soon it shows up but I have a long trip coming up in a few days and not a lot of time to do a lot of test driving before I leave. Oh, I should also mention that I checked the computer and there were no error codes.
Tim