Big time cold start issues
#151
Have you checked your low and high side oil pressure? HPOP reservoir can't drain since it has a standpipe. Unless the standpipe is cracked or broken. If the LPOP doesn't fill it fast enough or loses its prime overnight it'll not fill the HPOP reservoir and it'll run dry and the truck will be hell to start.
Synthetic oil never made a difference for me.
One thing I remembered was I had a few sensors bad all at the same time that seemed to contribute to my cold weather woes. My EOT sensor was bad as was the IAT and temp sensor for air on the turbo inlet manifold (cold side). Once those were fixed it ran better in cold but still had issues until it got warm.
Mine was like I had 8 switches to turn on injectors. It would start on three or four and then turn on one at a time as it go warm. Buzz tests all seemed to be OK. Never a smoking gun. Shop could never find a smoking gun culprit either.
The real thing that lead me to believe injectors was that one seemed suspect when the shop ran a CCT. He didn't feel confident enough to condemn it but I had him put a new stick in it. Immediately my cold starts got better. Still ran rough for some time. But got better. I went through the same routine the following winter sticking a new stick in it since I couldn't afford a full new set. Same thing again. Better but not fixed.
When I pulled all eight last year. At least 6 had o-ring damage where it appeared the high press oil eroded the ring away. Not sure if that was part of it or not but figured I'd mention it.
Good luck.
Synthetic oil never made a difference for me.
One thing I remembered was I had a few sensors bad all at the same time that seemed to contribute to my cold weather woes. My EOT sensor was bad as was the IAT and temp sensor for air on the turbo inlet manifold (cold side). Once those were fixed it ran better in cold but still had issues until it got warm.
Mine was like I had 8 switches to turn on injectors. It would start on three or four and then turn on one at a time as it go warm. Buzz tests all seemed to be OK. Never a smoking gun. Shop could never find a smoking gun culprit either.
The real thing that lead me to believe injectors was that one seemed suspect when the shop ran a CCT. He didn't feel confident enough to condemn it but I had him put a new stick in it. Immediately my cold starts got better. Still ran rough for some time. But got better. I went through the same routine the following winter sticking a new stick in it since I couldn't afford a full new set. Same thing again. Better but not fixed.
When I pulled all eight last year. At least 6 had o-ring damage where it appeared the high press oil eroded the ring away. Not sure if that was part of it or not but figured I'd mention it.
Good luck.
#152
#153
Have you checked your low and high side oil pressure? HPOP reservoir can't drain since it has a standpipe. Unless the standpipe is cracked or broken. If the LPOP doesn't fill it fast enough or loses its prime overnight it'll not fill the HPOP reservoir and it'll run dry and the truck will be hell to start.
Synthetic oil never made a difference for me.
One thing I remembered was I had a few sensors bad all at the same time that seemed to contribute to my cold weather woes. My EOT sensor was bad as was the IAT and temp sensor for air on the turbo inlet manifold (cold side). Once those were fixed it ran better in cold but still had issues until it got warm.
Mine was like I had 8 switches to turn on injectors. It would start on three or four and then turn on one at a time as it go warm. Buzz tests all seemed to be OK. Never a smoking gun. Shop could never find a smoking gun culprit either.
The real thing that lead me to believe injectors was that one seemed suspect when the shop ran a CCT. He didn't feel confident enough to condemn it but I had him put a new stick in it. Immediately my cold starts got better. Still ran rough for some time. But got better. I went through the same routine the following winter sticking a new stick in it since I couldn't afford a full new set. Same thing again. Better but not fixed.
When I pulled all eight last year. At least 6 had o-ring damage where it appeared the high press oil eroded the ring away. Not sure if that was part of it or not but figured I'd mention it.
Good luck.
Synthetic oil never made a difference for me.
One thing I remembered was I had a few sensors bad all at the same time that seemed to contribute to my cold weather woes. My EOT sensor was bad as was the IAT and temp sensor for air on the turbo inlet manifold (cold side). Once those were fixed it ran better in cold but still had issues until it got warm.
Mine was like I had 8 switches to turn on injectors. It would start on three or four and then turn on one at a time as it go warm. Buzz tests all seemed to be OK. Never a smoking gun. Shop could never find a smoking gun culprit either.
The real thing that lead me to believe injectors was that one seemed suspect when the shop ran a CCT. He didn't feel confident enough to condemn it but I had him put a new stick in it. Immediately my cold starts got better. Still ran rough for some time. But got better. I went through the same routine the following winter sticking a new stick in it since I couldn't afford a full new set. Same thing again. Better but not fixed.
When I pulled all eight last year. At least 6 had o-ring damage where it appeared the high press oil eroded the ring away. Not sure if that was part of it or not but figured I'd mention it.
Good luck.
It certainly wasn't helping things. She cranks like a banshee now with the connection being like it was intended. Thanks.
#154
#157
#159
#161
No white, just a little bit of dark smoke. Had a family get together out of state today so was unable to log data. Had it plugged in for several hours while away and it started up great. Gonna be a cool week and I need the truck to start in the am so i am not sure when I will get to log more data. When I do, I will let you know Rich.
#162
#163
#164
i think sticks. Remember I have zero blow by on the oil cap test, so I doubt there is a compression issue. I really am giving these updates for posterity at this point. If there is some more information that helps someone else diagnose a situation then I have done my job.
#165