C15 Cat 2006 Pete 240000 miles

C15 Cat 2006 Pete 240000 miles
Posted: Wed Dec 10, 2008 10:16:19 AM

Have a 2006 accert cat ,Misses shakes thumps, had it to cat 25 times nothing wrong they done all the fuel filter stuff no difference replaced all the actuaters selonoids  avi houseings Number one and six injector, still same problem , misses from 1100 to 1300  rpm bad,    oil pressure drops rom 65lbs to 45 under not much load fuel milege sucks about 4.5  to 5  its like hanging on to a chain saw all day your hands and feet go num from driveing it  any one with any answers , runs out good on dyno no codes but still runs like shit going down road,  ecm has been dumped and reloaded   it has also been replaced with no difference <, Cat nows theres a problem but they cant find it lol they have even checked for a broken crank

RE:C15 Cat 2006 Pete 240000 miles
Posted: Thu Dec 11, 2008 2:28:32 PM

Crank shaft positioning scensor? A freind had a similar problem with his and I think it was something as simple as pulling it out and cleaning the end of it off? On the pre emmision trucks it was located behind the compressor if I remember correctly. Good luck.

RE:C15 Cat 2006 Pete 240000 miles
Posted: Mon Dec 15, 2008 5:13:34 PM

is this problem only on power curve acceleration or does it happen in low and mid range jake??

RE:C15 Cat 2006 Pete 240000 miles
Posted: Mon Dec 15, 2008 8:36:40 PM

vibrates bad on #1 stage jake,  when its pulling its like its reversed ,, just got it out of the shop 3weeks ago  redone the whole top end again not one bit of difference, keep telling me its in the rear ends lol, damm thing sounds like an old steam engine when its under load, no2 satge and 3 it smothes out but still pops out the exgaust like a detroit

RE:C15 Cat 2006 Pete 240000 miles
Posted: Mon Dec 15, 2008 8:49:12 PM

misses the worst between 1100 and 1300 rpms  like you can never hear the turbos on this dont know wether thats normal its  the only accert    ive ever drove putting 525 horse to the wheels but you would never no it when you come to a hill cincinatti hill into ky about 35 mph maybe 40 on a good day  grossing 60000lbs, just cme out to texas 10000 lbs in the box 4.5mpg  dropping gears comeing across missourri lol  355 tall rubber 18 speed always run at 1275  63 mph  ran at 1400  ran at 1300  ran at1200  dont make no difference  try to hit the big hills with some speed 1450  but shes on her ass in no time,  sure miss my old cats