K 1500 Truck 4WD V8-393 6.5L DSL Turbo VIN S (1996)
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If vacuum was not achieved.
^
If one of the above tests fails, the module remembers that the system failed the test.
^
If the module sees a failure of the EVAP test for two consecutive tests, the module will set a trouble code for EVAP leak (DTCs P0440, P0442, or
P0446).
Important:
If the PCM is completing the EVAP diagnostic, filling of the fuel tank cannot be completed as the vent valve will be closed and the fuel dispenser
nozzle will sense the pressure build-up and shut down. This is the expected result. No parts should be replaced as nothing is faulty To keep from
encountering this situation, it is imperative all customers and dealership personnel be advised NOT TO FILL THE FUEL TANK WITH THE
ENGINE RUNNING. If the condition is encountered, turn the ignition to the OFF position for a minute. This will allow the PGM to go to sleep
completely, thereby opening the vent valve.
Disclaimer
