What kind of crankshaft does a Duramax use? For a more budget-friendly option, a properly balanced Compstar forged crankshaft (also made by Callies) has shown Continue Reading
What should the voltage be at the fuel pump relay?
What should the voltage be at the fuel pump relay? You should have 12 volts at the dark green/yellow wire at the fuel pump relay. Continue Reading
Why does my GMC Sierra make a whining noise?
Why does my GMC Sierra make a whining noise? If it changes with the engine, it’s most likely going to be an accessory bolted to Continue Reading
What causes the ABS speedometer to stop registering?
What causes the ABS speedometer to stop registering? However, when the other systems stop functioning properly, you might also see the traction and stability control Continue Reading
What kind of radio does a 2007 GMC Sierra have?
What kind of radio does a 2007 GMC Sierra have? I have a 2007 gmc sierra classic crew cab. I started having problems with my Continue Reading
Where is the fuel injector control module located?
Where is the fuel injector control module located? In the early Duramax engines, there was a separate Fuel Injector Control Module (FICM), located on the Continue Reading
Can antifreeze go on the ground?
Can antifreeze go on the ground? Antifreeze has a sweet taste that can attract pets and small children. So do not pour antifreeze on the Continue Reading
What causes white smoke in a GM 6.6L Duramax engine?
What causes white smoke in a GM 6.6L Duramax engine? A common issue with the GM 6.6L LB7 Duramax engine is white smoke at idle. Continue Reading