OK all you diagnosticans, working on 08 Denali 6.2 AWD. Just recently started having a problem where after filling the tank the engine cranks but won't start
After ranking for 20 - 30 seconds it does finally start. No problem if only a partial fill up only when filled to the nozzle shut off. Otherwise car runs perfectly. No codes. Any ideas, it's making me very nervous. Thanks
After ranking for 20 - 30 seconds it does finally start. No problem if only a partial fill up only when filled to the nozzle shut off. Otherwise car runs perfectly. No codes. Any ideas, it's making me very nervous. Thanks