I am on my first diesel truck. It is a 2003 Chevy K3500 duallie with a 6 speed standard, LB7 motor. I had the injectors replaced on the motor two years ago, but now I am having injector issues again. The truck has 187000 on it and still runs great except at idle. I have installed an intake, exhaust, and programmer. My question now is will it be worth it to replace all the injectors again as it will be around $4000 and my truck book value is only $11,800 trade in value. I am just wondering if I should cut loose and get something newer or if it might be worth the repair. Any suggestions will be greatly welcomed.