× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network

P0449 Diagnostic Trouble Code Discussion for March 2018

EVAP Vent Solenoid Control Circuit Malfunction


Note: This is a professional automotive technician's resource.
Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.

Trouble Ticket Help Requests for DTC P0449
Help Request Posted
2010 Cadillac Escalade ESV 6.2L No Start, Poor Idle Quality, Stall, MIL Lamp on VIN: 1GYUKHEF2A
P0449: Canister Vent Control circuit. From everything I can see, we have a very expensive cut and dry fuel pump problem that we rectified as evidenced by the fuel pressure tests and Fuel rail pressure signal on the Solus Edge. Same symptoms however of crank, no start or sort of runs rough then...
March 07, 2018
2008 Chevrolet Trailblazer LT 4.2L MIL Lamp on VIN: 1GNDT13SX8
P0449: EVAP Vent Control Cicuit. ... trailblazer with an engine light on and trouble code P0449 (vent control circuit). I've recently replaced the purge valve and the vent valve with AC Delco products. I've smoke tested this vehicle and found no leaks. I can op...
March 31, 2018