Question about Cars & Trucks
Engine light on, code read out p0449, p0455, p0449, p0445
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
New users get 2 Free calls (no credit card required) and instant help on almost anything you can think of (from cars to computers, appliances, handyman, and even pets).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
SOURCE: 2002 Buick Rendezvous Error
I have had simlar issues. The first thing to try is to diconnect the positive lead from teh battery. Be careful as there are some issuesd surrounding OEM batteries in the 02. after about 30 secs reconnect the cable. This will "reset" your system and if it is just a glitch, the problem should be gone. If this does not fix the problem it is most likely your intrument cluster, however it can also be the BCM (Body Control Module). Have a dealer check it out for you. Before you buy a replacment part from the dealer chaeck out the prices at newgmparts.com or Rock Auto, both saved me 50% or more when I needed to have these items replaced.
Posted on Sep 23, 2008
The vent solenoid valve has been redesigned to correct the problem you are having. I would recommend purchasing the dealer component.
I am not aware of any aftermarket parts suppliers.
Posted on Feb 25, 2010
The p0455 is for a leak concern and if that was the only code I'd say give the cap a shot. However the p0455 is most likely just a side effect of the P0449. The P0449 is a test that is run on the vent solenoid circuit to check the electrical functions in basic terms. The computer is putting out voltage amount X and in a properly functioning circuit it knows it will see voltage amount Y come back. It isn't coming back as what it expects to come back at so there must be something electrically wrong with the vent circuit. And of course if the vent doesn't work you get a large leak. If we are just throwing parts at trucks the logical one for you is a vent valve. Since your Vue is a 2008, most likely there is a good chance that it's covered under the emission warranty which is 5 years.
Thank you for using fixya. and be safe.
Posted on Jul 07, 2010
The PCM has determined that a malfunction exists in the electrical
circuit for the vent valve/solenoid in the evaporative emission control
1- Purge or vent solenoids defective
2- Check connevtor and wiring
3- Fuel saturated vapor canister
4- Failed EVAP vent solenoid
Posted on Aug 24, 2010
Tips for a great answer:
Jan 07, 2016 | 2004 Chevrolet Chevrolet Impala
Jan 19, 2015 | 2007 Buick Rendezvous
Feb 22, 2013 | 2007 Buick Rendezvous CXL SUV
Feb 27, 2012 | 2007 Buick LaCrosse CXL Sedan
Jan 12, 2011 | Chevrolet Chevy Cars & Trucks
P0455 Evaporative emission (EVAP) system - large leak detected
Oct 24, 2010 | 2002 Pontiac Bonneville
Jul 07, 2010 | 2008 Saturn VUE
Feb 25, 2010 | 2005 Chevrolet Avalanche
Jun 11, 2009 | 2007 Buick Rendezvous CXL SUV
Nov 19, 2017 | Cars & Trucks
Nov 19, 2017 | Cars & Trucks
138 people viewed this question
Usually answered in minutes!