GMC Jimmy Repair Questions and Answers

Cranks Up But Stalls Immediately, Replaced Fuel Pump, Now I Don't Know What To Do.

How To Troubleshoot.

Fuel Pressure Is Perfect. Has Brand New Pump Filter And Spider Injection. Timing Light Indicates I Am Losing Spark. I've Changed...

For Some Reason The Top Brake Light On The Top Of The Hatch Comes On, But The Two Main Bottom Brake Lights Do Not Come On.

Somehow Messed Up When Replacing Plug Wires, Terrible Miss And Knocks. The Cap Has Numbers, But I Need A Diagram To See What Is Run To Wrong...

So, My Truck Was Running Okay, I Did Notice The Past Couple Of Days It Was Having A Tough Time Starting Usually Starts On First Turn. I...

I've Replaced A Few Parts With No Luck. Distributor + Cap And Sensor Fuel Pump Fuel Filter Fuel Relay Fuel Pressure Regulator ...

Ignition Control Output High/pulse Detected When Gnd Cylinder 1.

While Cranking Engine Makes A Loud Clank Sound.

This Is Actually A Boat With A 4.3 L Gm V6. When It Reaches Temp The Engine Cuts Out. Has An Hei Distributor. I Have Changed The Control...