1986 6.2l Electric fuel pump

[trower]

I replaced the mechanical lift pump on my GMC a few years back. The new one started leaking again so I purchased an Electric pump and installed it on the frame after the tank switching valve. Now while I wait for the glow plugs to cycle there is fuel pressure in the IP before I crank the engine. It really works well.

[DmaxMaverick]

Welcome to the Forums!

Thanks for the info. Quality parts are often hard to come by, but OEM quality fuel lift pumps are still available, some with lifetime warranties. A little more pricey, but worth it. I like electric pumps fine, and they have their advantages, but mechanicals do, as well. Simplicity, safety, and repair cost, to name a few. I've replaced a dozen or 3 over the years.

A couple questions...

Did you bypass the mechanical lift pump? If so, how? Tube fittings or hose/clamps?

What fail-safe lift pump control are you using? (the control that stops the pump if you get in a crash, for example)

[trower]

Welcome to the Forums!

Thanks for the info. Quality parts are often hard to come by, but OEM quality fuel lift pumps are still available, some with lifetime warranties. A little more pricey, but worth it. I like electric pumps fine, and they have their advantages, but mechanicals do, as well. Simplicity, safety, and repair cost, to name a few. I've replaced a dozen or 3 over the years.

A couple questions...

Did you bypass the mechanical lift pump? If so, how? Tube fittings or hose/clamps?

What fail-safe lift pump control are you using? (the control that stops the pump if you get in a crash, for example)

I bypassed the mechanical pump with a steel braided line with threaded fittings. My brother did the same swap and left the mechanical pump in line.

I use 2 relays and use the Glow plug relay for power at startup and one for ground when there is no oil pressure.