Chevrolet Repair Questions? Ask a Mechanic for Answers ASAP
Welcome, I'm Chris (aka Moose) I prefer to work when others don't, I am here around lunch and after dinner till after midnight.working after noon till just after midnight.
Is the vehicle stock or have you removed parts or added parts to make it run with more power?
Is there exhaust smoke on startup or while its cleaning or while driving?
Any codes stored?
Perform a regeneration and monitor the exhaust temperature sensor #2 to be over 1000 degrees with temperature sensor #1 more than 600 degrees. If the #2 exhaust temperature is cool, remove the hydrocarbon injector from the exhaust down pipe. With the engine running, energize the hydrocarbon injector and expect fuel to exit the injector nozzle. If no fuel, replace the injector and verify diesel fuel is present at the injector during disassembly. Your symptoms indicate the injector is bad and not providing fuel to the DPF to clean it out.
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Hello again Chris here,