What year is the truck? Is it the check engine light or MIL light coming on? If a light comes on there is a reason, the code should be stored & should show as a inactive code unless you have a bad ECM If it will only run good for 45 minutes before throwing a code maybe you need Detroit to hook the computer up & drive until the light comes on.
Diag 05 Fail 07 spn 523318 sys 58 fault 05 fail 02 spn 3364 fault 04 fail 18 spn 4364 eec 61 fail 05 spn 520919 My 2012 Freightliner Cascadia is throwing all these codes. Won’t do a regen and had def system cleaned a couple months ago a doseelr sensor replaced
I have a 2009 freightliner cascadia have soent way too much money taken it to the dealer and still haa rhe problem . When the truck is going up hills the check engine ans the key light turn on so basically i have to stop the engine check the oil water levels and turn it back on ans the lights go away ans i start the drive again once i go uphill the same thing occurs .. can somepne explain me what else it can be i am reallt dont know qhat to fo with this truck since they cant fix the issue. TIA
Intake Manifold Pressure Lower than expected. Look for a blocked/ plugged radiator (winter front) , boost leaking, or could be a boost sensor it’s self. Past that it’ll take a dealer or shop to finish the diagnostic.