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P0440 Diagnostic Trouble Code Discussion for January 2007

General EVAP System Failure

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Trouble Ticket Help Requests for DTC P0440
Help Request Posted
1997 Subaru Impreza Brighton 1.8L Excessive Emissions, Poor Idle Quality, Hesitation, MIL Lamp on VIN: JF1GF2251V
P0440: EVAP System Performance. Now engine is dumping fuel in#1 and #4 cyl. gas running out of ex manifold after a minute or two. Code p0340 in on.
January 18, 2007
2000 GMC Yukon SLT 5.3L MIL Lamp on VIN: 1GKEK13T1Y
P0440: EVAP System No Flow During Purge. ... vehicle with the same code P0440. On the first visit I did the normal diagnostic routine for this code, performed smoke test on system with Smoke Pro, when vent solenoid was comanded closed with scanner it continued to stay open. Removed vent solenoid and ...
January 30, 2007