Sunday, December 30th, 2012 AT 3:25 AM
Engine light went on and dealer found sand in evap lines running to vent canister. They blew out the lines and replaced the canister, vent solenoid and purge solenoid. How do I prevent this from happening again when I drive on the beach. The car is rated for light off road. Sand should not have been sucked in but I read that the Silverado had this issue and GM issued a fix.