zac2005ss Posted May 29, 2007 Report Share Posted May 29, 2007 My name is Zac i'm new to the forum. Bought my SS in October of last year. Love the truck. Nothing can compare to it!! No troubles untill now. My engine light was Flashing now it is on steady. Went to Advance Auto and had them scan it and it came up P0307 Cylinder 7 Misfire detected? What can be causing this? I made a app. to the dealer for Thursday to check it and I don't want them to b/s me on this. I wanted to ask the experts first before the dealer trys to give me some lame excuse on it. If anyone can help me out I would appreciate. I love the forum!!!! Everyone has some nice trucks on here!! Keep it up.. Thanks Quote Link to comment Share on other sites More sharing options...
budhayes3 Posted May 30, 2007 Report Share Posted May 30, 2007 From what I've read both here and at PT.net, it seems that fuel injector failures are quite common... Quote Link to comment Share on other sites More sharing options...
BenKey Posted May 30, 2007 Report Share Posted May 30, 2007 Plug wire, plug, coil, fuel injector. Flashing SES always will mean misfire. Check your plug wire on cylinder 7 (driver's side all the way back). Check and make sure both ends are seated good. You should feel one click on your plug end and hear two clicks on the coil end. A good check of all of them won't hurt. I like taking a pair of slip-joint pliars and move to the wider setting, put the plug end connector in and squeeze slightly. It will apply pressure all the way around and should evenly mash it in sligtly. The object is just to get it to sit on the plug more snug. Most come with wires that the plug end is a little on the big side. I have seen this fix mis-fire just from doing this. Quote Link to comment Share on other sites More sharing options...
zac2005ss Posted May 30, 2007 Author Report Share Posted May 30, 2007 Thanks for the input. I'll try it today Quote Link to comment Share on other sites More sharing options...
zac2005ss Posted May 31, 2007 Author Report Share Posted May 31, 2007 I took off the metal sleeves and didn't fix it. I reconnected everything and still didn't work. Truck is at the dealer today so we will see what happens. I'll let you guys know what it is. Quote Link to comment Share on other sites More sharing options...
zac2005ss Posted June 1, 2007 Author Report Share Posted June 1, 2007 Talked to the dealership yesterday and it turns out it is my injectors. There replacing all of them under warranty. Thanks for the info. Quote Link to comment Share on other sites More sharing options...
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