Question about 2001 Ford Expedition
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Posted on Jan 02, 2017
When the o/d light is blinking that means there is a trany issue.My suggestion would be to have the computer scaned for codes and then get back to me and I will try to be of further assistance.
Posted on Mar 06, 2009
The EVAPORATIVE PURGE CONTROL VALVE is located under the hood usually behind or near the back of the headlights. It it on the top of the Evap Charcol Cannister ( shaped something like a Quaker Oats box ) . Basically does not allow fuel vapors to escape into the air. Te purge valve will recycle the vapors through a charcol filter and sent to be reused as fuel., Problem could be caused by excessive fuel in the cannister, or the solenoid, or wiring, etc back to the computer.. Requires a lot of diagnosing. Hope this helps.
Posted on Apr 13, 2009
Possible leaks, clogs, malfunctioning VSVs (vacuum switching valves), and faulty Evap charcoal canister. This system is designed to remove harmful vapors in the fuel system and preventing these vapors to enter the atmosphere, regulate fuel pressure, by sending it into the combustion chamber to be burnt.
Diagnostics for P0446:
1. Inspect vacuum hoses and pipes
between EVAP (Purge) VSV and
Charcoal Canister for leaks.
2. Replace Vapor Pressure VSV and
Hopefully this helps
Posted on Aug 16, 2009
Gas cap not tight is the most common issue....the system is fuel tank, lines and evap. canister.....but most pressure loss is cap related, as the rest of the system gets handled less often....
Posted on Oct 10, 2009
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