Oceanside, CA *need service*

[gymkhanajosh]

Hey there folks.

Anyone in SoCal (Oceanside and surrounding areas) know of a reputable spot to work on a skoolie? I think my fuel pump or sending unit is acting up with intermittent starting. I just cant find any service manuals for this thing and dont have time to be wrenching on it for weeks trying to figure it all out.

2010 Chevy G3500
Grand Bantam / Collins Bus

Drove somewhere yesterday, came back out maybe an hour later to crank crank crank with no start. Jump didnt help, either. Sat around for maybe 4 hours rethinking my life choices and just gave it another try. Started up, drove to my safe parking spot and parked. Today, didnt start it all day and just tried now around 1pm and again, no start. I have some basic tools but no service manuals.

 

[PorchDog]

I would think your bus would have a 6.0 gasoline engine.

If that is true, it would be multiport fuel injection, and would have a high pressure fuel pump inside the gas tank. There is a fuel pump control relay somewhere that should come on for 1.5 seconds to power the fuel pump when you turn the ignition switch to "on", but not cranking the engine over. I would take the fuel cap off, and listen carefully while someone else turns the key to the on position and see if you can hear the fuel pump running inside the tank for those couple of seconds. Your description of your intermittent failure is consistent with how these pumps fail.

This is a cheap and easy thing to do.

 

[gymkhanajosh]

I would think your bus would have a 6.0 gasoline engine.

If that is true, it would be multiport fuel injection, and would have a high pressure fuel pump inside the gas tank. There is a fuel pump control relay somewhere that should come on for 1.5 seconds to power the fuel pump when you turn the ignition switch to "on", but not cranking the engine over. I would take the fuel cap off, and listen carefully while someone else turns the key to the on position and see if you can hear the fuel pump running inside the tank for those couple of seconds. Your description of your intermittent failure is consistent with how these pumps fail.

This is a cheap and easy thing to do.

Hey, thanks for that. Ill give it a listen. Fuel pump in-tank, does that mean i have to drop the tank to get to it?

 

[Albatross]

Hey, thanks for that. Ill give it a listen. Fuel pump in-tank, does that mean i have to drop the tank to get to it?

Almost certainly, although a full-removal isn't always necessary. I've seen some fuel-pumps changed out with only the back-end being lifted, and the tank itself only being lowered about a foot. But that isn't always the case.