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2004 XC90 is throwing a P0455 code

A mid-size luxury crossover SUV, the Volvo XC90 made its debut in 2002 at the Detroit Motor Show. Recognized for its safety, practicality, and comfort, the XC90 is a popular vehicle around the world. The XC90 proved to be very popular, and very good for Volvo's sales numbers, since its introduction in model year 2003 (North America). P2 platform.
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xyourobob
Posts: 59
Joined: 7 October 2016
Year and Model: 2004 XC90, 2011 XC60
Location: Maryland, USA
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2004 XC90 is throwing a P0455 code

Post by xyourobob »

My 2004 XC90 is throwing a P0455 code (Emission, detected Large Leak) I also get the "gas cap loose" message on the dash prior to getting the 0455 code. I have replaced the Gas cap twice and the last one came from Volvo just last week. I have removed the spare tire and hoses from the charcoal filter all seem to be in good condition including the J-hose. I replaced the evap purge valve and related hoses recently due a different code. Can someone suggest where to look next without spending the money on a smoke test?
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cn90
Posts: 8258
Joined: 31 March 2010
Year and Model: 2004 V70 2.5T
Location: Omaha NE
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Post by cn90 »

Time for smoke test.
2004 V70 2.5T 100K+
2005 XC90 2.5T 110K+
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