Picked up an 05 LLY with 189K that a guy was tired of messing with with the hopes of getting it running for a beater truck. It was a trade in and then supposedly went in for headgaskets at a local shop and it still doesn't run right. I don't know all of the details, but it has definitely been taken apart and I can see that it has new head gaskets. The workmanship was crude at best, as there are bolts missing out of most of the brackets and the glow plugs leaked because they were not tight and they didn't even bother to clean the intake horn or anything when doing the headgaskets.
It blows lots of black smoke under throttle and has no power. In 1st or 2nd gear it will redline, but in 3rd or D it won't hardly get above 2000 rpms (both with tons of black smoke - reminds me of my old truck with 60% injectors and dual cp3's - minus the power) It will also blow black smoke in park under throttle, but none at idle. It idles a little rough and is kind of hard to start like it is starved for fuel.
The codes I got were P0046, P2563, P0101, P0404 and P1404. All related to turbo nozzles or EGR. I looked at the intercooler boots to make sure they were tight and in tact. I pulled the EGR and it is moving freely - not stuck open, I tested the turbo vane sensor with efi live and it was smooth from 0-100%. I also pushed the plunger on the turbo and it moves freely. I watched the egr and turbo vanes and actual position followed commanded position on both. I then checked balance rates and #2 was at around 12 in park and drive and #2 was -4 in park and -7 in drive. All of the other ones were close to 0. I suspected a stuck injector so I pulled the injector harness plug and removed the glow plug on #2 and #7 one at a time and cranked and got no fuel out of the glow plug holes. I then swapped #4 and #7 injectors to see if the problem with #7 stayed with the cylinder or followed the injector. The balance rates stayed about the same as before swapping injectors so I believe it is something to do with those cylinders.
Any ideas on what to check next?
It blows lots of black smoke under throttle and has no power. In 1st or 2nd gear it will redline, but in 3rd or D it won't hardly get above 2000 rpms (both with tons of black smoke - reminds me of my old truck with 60% injectors and dual cp3's - minus the power) It will also blow black smoke in park under throttle, but none at idle. It idles a little rough and is kind of hard to start like it is starved for fuel.
The codes I got were P0046, P2563, P0101, P0404 and P1404. All related to turbo nozzles or EGR. I looked at the intercooler boots to make sure they were tight and in tact. I pulled the EGR and it is moving freely - not stuck open, I tested the turbo vane sensor with efi live and it was smooth from 0-100%. I also pushed the plunger on the turbo and it moves freely. I watched the egr and turbo vanes and actual position followed commanded position on both. I then checked balance rates and #2 was at around 12 in park and drive and #2 was -4 in park and -7 in drive. All of the other ones were close to 0. I suspected a stuck injector so I pulled the injector harness plug and removed the glow plug on #2 and #7 one at a time and cranked and got no fuel out of the glow plug holes. I then swapped #4 and #7 injectors to see if the problem with #7 stayed with the cylinder or followed the injector. The balance rates stayed about the same as before swapping injectors so I believe it is something to do with those cylinders.
Any ideas on what to check next?
