I took my truck to PepBoys today to get a diagnostics test done because it takes like 3 times to start the truck in the morning. It sounds like its going to start but it doesn't click over. Plus when I'm running the air conditioner it feels like it's going to stall. Actually it did one day when turning the corner. It's weird, it only does that when the airs on though. So now I try not to use the air. So this is what they said @ PepBoys. General Comments: Recommend Dealer! Radiator clogged & recommend thermostat,. Possible internal engine damage! Issues with air system, possible fuel injectors, etc. Codes: P0147, P0171, P0174, P0300,P1416, and again P0147, P0300. So this is why my check engine light is blinking! Any suggestions? I don't know what to do?. I think I just got screwed out of $2,500.00 from this guy that sold me the car. I just got it 5 months ago. If I can be fixed anyone know how much I would be looking @? Thank You So Much For Listening:)