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Vent Valve Solenoid: ACDELCO 23481275 www.amazon.com...
Harness Connector: 19257603 PACKARD www.amazon.com...
It's bad enough that your GM truck or SUV has such a large tank to fill, but when you can only fill it ounces at a time, it really becomes a nightmare. One of the major culprits of the GM slow fuel fill issue is the Vapor Canister Vent Valve Solenoid. This is much more than just a solenoid, but it's not too difficult to replace.
Our specific application is a 2007 Cadillac Escalade ESV, but the Tahoes and Trucks are much the same. The Escalade started tripping the gas pump nozzle pressure switch before you can even get a gallon in the tank. Trying to fill 30 gallons $0.50 at a time is a real problem. Replacing the canister vent valve solenoid is relatively simple and can be done by a Pro in 30-45 minutes. A DIYer may need a little longer.
Before starting the process, you need to remove the spare tire from the SUV. Tools needed are minimal. We used a straight-slot screwdriver, T30 torx bit, bent-needle-nose pliers, side cutters, and a 13mm wrench or socket. Once the new solenoid was in place, we cleared the codes on the Escalade and the codes stayed away. Problem solved. Now, even the remote start works again.