Crankshaft position sensor problems

[JCockerill]

My 06 has about 65k on the odo. and after it sits for a few days or more when you start it up, she will stall out 2-3 times before running normal, then i get a crank possition sensor code. I clear it and it goes away until i let it sit for few days again. I checked sensor for signs of damage, none. i disconected conections and cleaned with contact cleaner. Is there an issue with the sensors? do they normaly go bad? thanks.

 

[Prairie Dog]

Not normally but it can happen. If you wan't to double check it you can swap it with the cam position sensor (same part) and see if it recurs.

 

[steved]

They are pretty cheap from Cummins or Genos... I carry two spares (past trouble shooting). I want to remember $35? It would be worth the expense just to rule it out...



They are a pretty simple thing... a coil of fine wire wrapped around a ferrite core, a single break in that wire will cause a failure...

 

[BDaugherty]

I was having problems with long crank times due to problems building rail pressure on cold start. At first, I thought it was the timing harness on my TST Powermax, but as time went on I started to think that it was more related to battery voltage. I replace a damaged battery cable running from the left battery down to the block right next to the ECM and at the same time cleaned/inspected/repaired the remaining ground wires running from both batteries to the block, fender, and frame. Knock on wood, I have not had a crank or cam code since.

 

[JCockerill]

ordered new cps from geno's, only $20! the first cheap part i've bought on this truck! will let you guys know if it solves problem. . thanks for help.

 

[JCockerill]

new cps installed, problem seems solved for now. will try a few more cold starts and see if problem comes back. thanks geno's and all for help!

 

[JCockerill]

update, stalling and crank possition sensor code still there on cold start up. takes about 4 stall outs and restarts before it will stay running. The banks six gun i have in the truck pig-tails into the crank sensor. I'm going to disable the banks tunner and see if this fixes the problem. will keep you posted.

 

[Prairie Dog]

Come to think of it, that's the same code my TST Powermax kept causing before I tossed it.

 

[JCockerill]

just got off the phone with banks,, there is a know problem with the crank possition harness on the six gun. since i've had it over 2 years, and it's out of warantee... they will fix it for $89. now i have to uninstall the whole harness and send it back to california. . this sucks... never will i buy banks again...

 

[Prairie Dog]

A known problem and they want $90 to fix it? Way to go marketing dept!
Your right, that just plain sucks.