How can you tell if a cylinder is misfired? A visual check of the usual causes of a misfire and monitoring the engine with a Continue Reading
What are the symptoms of a bad gas cap?
What are the symptoms of a bad gas cap? One of the most common symptoms of an issue with the gas cap is a cap Continue Reading
What causes a p2149 fuel injector supply voltage code?
What causes a p2149 fuel injector supply voltage code? Causes for this P2149 fuel injector group supply voltage code may include: Defective or damaged fuel Continue Reading
Why does my GMC Sierra 1500 turn into a heater?
Why does my GMC Sierra 1500 turn into a heater? Spoke with a friend that has the same truck he said his and his dads Continue Reading
What kind of fuel injection does a GMC use?
What kind of fuel injection does a GMC use? Back in 1992, General Motors introduced a new type of fuel injection system known as “Central Continue Reading
Why does my GM truck drop in rpm?
Why does my GM truck drop in rpm? From buying research to owner support, join 1.5 MILLION GM Truck Enthusiasts every month who use GM-Trucks.com Continue Reading
How long has my Silverado Z71 been losing coolant?
How long has my Silverado Z71 been losing coolant? From buying research to owner support, join 1.5 MILLION GM Truck Enthusiasts every month who use Continue Reading
What was the problem with my 2004 envoy?
What was the problem with my 2004 envoy? 2004 Envoy.. When turned on A/C or defrost engine would stall & cut off. I turned off Continue Reading
Where is the fuel pump and filter located?
Where is the fuel pump and filter located? 9.Remove the fuel filter (B), the fuel gauge sending unit (C), the case (D), the wire harness Continue Reading
Where are the fuses located on a GMC Envoy?
Where are the fuses located on a GMC Envoy? Posted on 12 December 201624 October 2018by admin GMC Envoy (2003 – 2004) – fuse box Continue Reading
Why are my GMC Envoy Trailblazer headlights not working?
Why are my GMC Envoy Trailblazer headlights not working? 2002-2009 GMC EVOY and Chevy TRAILBLAZERS have a common problem with the headlamp relay causing low Continue Reading
Where are the timing marks on a fuel injection pump?
Where are the timing marks on a fuel injection pump? 7) Some timing gears have a set of two dots, which are the timing marks. Continue Reading