Car Information:
GMC Sierra
Year: 2003
Engine Size: 6.6
Trans: Automatic

Issue / Question:
Engine will Crank over but is very slow to start. After several seconds of cranking it will start. I am looking to find out why and what I can do to correct it.

Several things can cause this, most common is air in the fuel system because of a bad one way valve in the fuel supply pump. We have to take a residual fuel pressure test to varify.

For professional auto repair and auto services in Orlando you can call our shop today at 407-629-2661.

Magic Mechanic
1432 Lee Road OrlandoFL32804 USA 
 • (407) 298-7447