My 87' sierra won't start

[Ticaouette]

Hi, I am a new owner of a 1987 Sierra Classic 6.2l Diesel.

I don't know much about diesels, It's my first one, so I thought I could get help and advice here.

I bought it a month ago, it has been sitting for an unknown amount of time. Started it cold, worked great, drove it home. On the way, problems started. The engine stalled 3 times, like it's starving fuel even if the two fuel tanks are full. When I managed to park it, it stalled but that time, it wouldn't start again. There is no air in the fuel lines, It's the only thing I had time to check before going back to College. I suspect it might be the fuel filter but I cannot verify that because I'm out of town for College.

Does anyone has better ideas than me.

Your help, time and experience is much appreciated.

Thank you

 

[MadOgre]

Hi, I am a new owner of a 1987 Sierra Classic 6.2l Diesel.

I don't know much about diesels, It's my first one, so I thought I could get help and advice here.

I bought it a month ago, it has been sitting for an unknown amount of time. Started it cold, worked great, drove it home. On the way, problems started. The engine stalled 3 times, like it's starving fuel even if the two fuel tanks are full. When I managed to park it, it stalled but that time, it wouldn't start again. There is no air in the fuel lines, It's the only thing I had time to check before going back to College. I suspect it might be the fuel filter but I cannot verify that because I'm out of town for College.

Does anyone has better ideas than me.

Your help, time and experience is much appreciated.

Thank you

Change the fuel filter.

It is most likely the mechanical fuel pump located on the bottom, front, passenger side of the engine block, has crapped out on you. replace it and I bet it starts.

 

[Ticaouette]

Thank you, much appreciated

 

[MadOgre]

did it start?

 

[Ticaouette]

I'm out of town right now for college, but as soon as I can try it I will

 

[MadOgre]

When installing the new pump squirt some assembly lube inside the new fuel pump above the diaphragm where the tension spring is and apply some to where the new arm contacts the fuel pump rod.