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This is a discussion on 55 MPG --> 48 MPG --> 55 MPG (2007 Prius) within the Gen II Prius Main Forum forums, part of the Gen II (2004-2009) Toyota Prius Forums category; My 2007 Prius is now 68 K miles. Between 0 to 62 K miles it get an average of 55 ...


55 MPG --> 48 MPG --> 55 MPG (2007 Prius)

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Old 10-21-2009, 10:32 PM   #1
ggcc
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Default 55 MPG --> 48 MPG --> 55 MPG (2007 Prius)

My 2007 Prius is now 68 K miles.

Between 0 to 62 K miles it get an average of 55 MPG two months ago it drop to 48 MPG. I did not know why until 10 days ago the engine light lid. I brought my car to dealer and the error code was P2401. Dealer replaced the Vacuum Pump Modulator Assembly (above gas tank, gas tank has to remove in order to replace the pump). After replaced the Pump above, I got back to 55-57 MPG right away.

So I guess the pump was bad when I got 48MPG, but the engine light was not lit because it was still within the limit.

Question:

1-How is the warranty of this Vacuum Pump Modulator Assembly (3 years 36K or 15 years 150K miles ( Partial Zero Emission Vehicle PZEV))?


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ggcc

2007 Prius:
Oil Filter: 90915-YZZF2
Michelin X Radial (rated at 80,000 miles) replaced @ 62K Miles (07-13-2009)
CVT 4 quarts drain and fill at 62K miles (07-17-2009)
Error Code: P2401 replace Cannister Pump at 68K

2006 Prius (Daughter's car toyotaownersonline.com sn 1234abcd):
CVT WS 4 quarts drain and fill at 126.5 K miles (08-25-2009)

2007 Sienna Transmission fluid Drain & Fill 4.5 Quarts Replaced at 22K miles (07-17-2009)

Last edited by ggcc; 10-21-2009 at 10:35 PM.
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