Thats the only other thing if fuel and compression are present.
I thought fuel check valve, but he said fuel is running.
Check ECM plug, wiring, power to ECM. Worst case swap out ECM with loaner?
60 series Detroit won’t start
Discussion in 'Trucks [ Eighteen Wheelers ]' started by Iron diesel, May 23, 2021.
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Only srs will stop starting. But I normally change both if your doing one. The lower trs won't do anything without a hard electrical fault. Bottom is a "here it comes" top is " there it went". Bottom isn't really even needed.Vampire, spsauerland, jsnell and 1 other person Thank this. -
Yep they are much simpler than most made them out to be. Still alot mechanical with electronic controlled injection and monitoring.Vampire, jsnell and blairandgretchen Thank this. -
should fire on starter fluid unless the motor has bent valves
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bluebob Thanks this.
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You can start a engine on starter fluid it will fire if it don't fire at all it's f###up wont run long no but will start
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I have power to my ecm from the batteries. I took the valve cover off and checked power at the injectors and there is none, we checked power with the key on and while turning the engine over. Probably replacing the ecm is the way to go?
jsnell Thanks this. -
No. ECM replacement is literally THE last component to point a finger at. Its probably the most reliable part on the truck.
Don't those injectors run at something like 120 volts? Versus chassis 12 volt?
Does the ECM have good ground connections? Power is only half the equation.
If the ECM isn't seeing all the info it needs (usually key power, constant power, RPM/engine position) it will not send any signal to the injectors.
Exhaust all options before putting suspicion on the ECM. Well over half of all ECMs replaced were replaced for no reason other than someone jumped the gun on proper diagnosis.Vampire, jsnell, clausland and 1 other person Thank this.
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