[sjones28025]

5.7L VE, push button start. Turns over but will not start. Cycles through 10 seconds of trying then quits. On 2nd try it usually sputters then finally starts. Dealer has performed re-flash per TSB. No luck. Dealer replaced WIN module. No luck. It is an intermittent problem that seems to be worse when the car sits. The first time it sat for a week (in the sun) while we were on vacation. Was slow to start when it sat overnight in the garage. 31,000 miles so approaching warranty expiration. Any ideas?

 

[KOG]

Fuel pump or fuel pump relay . Start by checking fuel pressure before starting and while starting.