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Toyota
Tacoma
Trouble Codes
P Codes (Powertrain)
P0400 - P0499
P0456
eng. code po456
2007 TOYOTA TACOMA
37,000 MILES
MAILIBU1955
MEMBER
76 POSTS
2007 Toyota Tacoma v/6 auto trans.Eng. trouble code Po456.Engine starts and runs perfect.37000 miles. Gas cap has been tested.
Aug 17, 2012 at 4:51 PM
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RASMATAZ
✓
Experienced Mechanic
75,988 POSTS
Any of the following could also be the cause:
A small leak in any of the EVAP hoses or fuel tank hoses
A small leak in the purge valve or vent valve
The EVAP Canister may be leaking
Have the Evap system smoke tested-
Aug 17, 2012 at 6:55 PM
MAILIBU1955
MEMBER
76 POSTS
Thanks, I'll check this out.Bob
Aug 18, 2012 at 12:02 PM
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Frequently Asked Problems for This Vehicle
Engine won't start
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Engine stalls while driving
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