Elijah

On 1/30/2019 at 10:04 PM, turckster said:

Sounds like the cam position and crank position sensor connectors are crossed. The ecu  see's excessive speed and shuts off the starter. 

Ever find a solution? Came across the same problem yesterday. Can’t be switched sensors and we tested the battery’s and alternator. Can’t be switched sensors due to a brand new truck and has never been worked on before problem occurred.

On 1/30/2019 at 10:25 AM, George h said:

I have a 2009 Mack with a mp-8 . 

You turn on the key and crank the starter will engaged for about a second or less then it shuts off you can cycle the key and it will do it again it has a new wire harness new starter all the fuses and relays have been replaced the dealership is worked on this problem  4 different times and have not fixed it my question is it possible that the engine ecm is bad or the eecm I don't want to replace the wrong one

Did you ever come across a solution?have the same problem in our truck but it’s 1 year old and could have been switched sensors. Battery and alternator test good. Any ideas?