GM 6.5L Diesel Won’t start Again

This is Part 3 you can catch up.
Part 1: GM 6.5L Diesel Stalling, now Won’t start.
Part 2: GM 6.5L Diesel Stalling, Won’t start. – Now FIXED in 10mins

I fixed the won’t start issue months ago and the truck was running fine. Now I go out to start it up and it won’t start. I can hear the lift pump running, but it sounds diffrent and runs for longer than normal.

I figured with over 300,000 miles I should replace the lift pump anyway. The local parts place had it in stock for about $50, but I am still not sure what is wrong.

I wait till the weekend and try the truck again. it starts for a second, but then dies. I also don’t hear the lift pump anymore.

I install the new lift pump, and after a few times bleeding the fuel system the truck fires right up. Runs great.

Want Better Fuel Mileage for your 6.5L Diesel? Read this



3 Responses to “GM 6.5L Diesel Won’t start Again”

  1. [...] This is Part 2, you can read more here. Part 1: GM 6.5L Diesel Stalling, now Won’t start. Part 3: GM 6.5L Diesel Won’t start Again [...]

  2. [...] This is Part 1, you can read more here. Part 2: GM 6.5L Diesel Stalling, Won’t start. – Now FIXED in 10mins Part 3: GM 6.5L Diesel Won’t start Again [...]

  3. Sergio says:

    I have a 1994 chevy with the 6.5 that starts when the engine is cold,after a while it dies.sometimes its hard to stared again,sometimes it runs fine.i replaced the fuel today and the same thing,about 2 month ago i replaced the pmd and relocate it to away from the pump with a cooler and im still having problems. need some expert advice.thanks

Leave a Reply