2003 GMC Sierra 2500 HD Q&A
2003 GMC Sierra 2500 HD Question: replace o2 sensor
Unless I'm way confused, a Diesel does not have an Oxygen sensor. What problem are you having and why are you seeking an oxygen sensor? - DaveJHM
THIS TRUCK WHEN COOL OR COLD STUMBLES & HESITATES TO START FUEL PRESSURE 60 T0 66 PSI COLD & HOT. MASS AIR FLOW CORRECT ,TPS CORRECT, MAP CORRECT, REPLACED THROTTL BODY, HOOKED UP BATTERY CHARGER...
I just replaced the O2 sensor behind the cat on the passenger side. I was told to check the fuse as well. The truck is a 2006 GMC Sierra 2500 HD. I have no idea what fuse needs to be checked. I...