Questions & Answers for: sierra troubleshooting

...Same problem. My 2003 GMC Sierra pickup V6 has 234,000 miles on it & the odometer and trip indicator have "blinked out". No indication. What are my troubleshooting options? ...

...sierra 5.3 Codes 171 and 174 showing lean in both banks. Changed plugs and wires, truck started running good. Codes came back a couple of hours later. Truck still runs fine. Possibly Injectors? Try ...

2000 GMC Sierra will not start. The coil, ignition module and crank sensor tested OK, however, I changed them and still having a no start problem. I'm getting a code PO339 for crank sensor ...

...sierra 2500 where is the the fuse for the fuel pump i cannot locate it..please help Hi, your pump is powered by the ECM-B fuse in the engine compartment relay box. The fuel pump relay is turned on by ...

sierra easy family tree for windows 95/98 compatible with windows 7? I have no problem with windows xp. It probably will not work on win 7If it will install you can try to run in compatibility mode by

my truck wont start sometimes it a 1997 gmc sierra how do i troubleshoot it when i turn the key sometimes it doesnt want to start until the second or third time what can i do to fix it check your ...

2000 GMC Sierra no power to fuel pump or fuse If power is lost between battery and fuse block, check wiring. There may be a fusible link that has gone out. Some fuses are hot at all times, but with ...

Troubleshooting tail light/blinkers and brake lights 2003 sierra 1500 Also electric locks and power windows no longer working, please help Oh wow. The same thing happened to me with my 2000 sierra, I ...

...on my 2000 GMC Sierra truck, any suggestions on troubleshooting? Make sure you have good ground not only to the engine but from either battery to body and chassis or engine to body and

Relay diagram behind glovebox on 1996 GMC Sierra I need to know what relays are behind the glove box on 1996 GMC Sierra. My turn signals and brake lights suddenly stopped working and I'm trying to ...