Attention: TDR Forum Junkies 
Changed the anti-freeze and fuel filter last night. Everything went smoothly, the truck started first time, but the check engine light came on and stayed on until I finally cycled the ignition switch a couple of times. No idea what caused it. Due to poor reading of my maintenance schedule (read brain fart 
), this particular fuel filter had almost 18K miles on it. That might be why my mileage dropped a couple of tenths over the past couple of months. Anyway, the light has stayed off and I'm not going to worry about it.
), this particular fuel filter had almost 18K miles on it. That might be why my mileage dropped a couple of tenths over the past couple of months. Anyway, the light has stayed off and I'm not going to worry about it.
Last edited:
) the box can produce an over/undervoltage error concerning the MAP sensor. The light went out after three starts so whatever it was, is not being seen now. I saw your other post concerning getting the codes read on a 99. Come up to Savannah next week. I'll get them read for you.
