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98 GMC 3500 dually cranking problems?
Im having cranking issues with my truck. I do have over 40 psi in the fuel rails. MY questions, there is a purge canister on the drivers side what is its purpose? Would that have any reason for the engine not to crank. Noid light is what I need to check to make sure the injectors are firing so what is a noid light?
Purge can are for fuel vapors. Noids lights are mechanic's why of seeing if the injector is getting a signal to pulse. The light blinks when it gewt the signal. Could be so many diffent things that it is hard for me to tell you what it is. You sound mechanically inclined so start whit the basics- air, fuel, spark. Make sure that these are working in sync with each other. ie timing, weak spark, bad wires, clogged or bad injectors. These should get you going in the right direction.
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