Medium and Heavy Trucks
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hello, my name is ***** ***** I will be glad to assist you. please allow me a couple of minutes to gather some basic info.Roy
ok, the red light comes up for 2 reasons.
1. low coolant in the surge tank. make sure the level is good.
2. oil pressure too low. with low oil pressure, it will turn on the red light
with the key off?
no, with key on
light is on with key off. engine cranks, but will not run.
with the red light on, it will not start
I would check the ignition switch.
I would inspect the harness for the ecm closely as well for any damaged wiring.
the ecm may also be the failure in this
how do you manual get codes from ecm.
I dont have info on anything this ols.
do you have a laptop with the DDDL program???
was the light on prior to this repair??
fixed myself bad ground want money back