Starting Problems

[levilove]

My 99 GMC Sierra every so often when you turn the key the engine turns over but does not start after waiting for awhile sometimes 5 minutes sometimes 20 it will start but will just keep turngin the engine over every time till it finally does start does anyone know why it is doing this?

[Bob B]

MY truck did this until the fuel pump finally died completely while on a trip.
There are other things that can do it also. But the fuel pumps are famous for dying on you. A pressure gauge becomes an essential tool. I lost three pumps in two years, so the gauge lives in the tool box under the hood.
BTW I've been told to not run the tank under 1/4 as the gas helps cool the pump.
Bob B

[spot9]

Same thing happens with my 98 Sierra. I had it towed to a shop and is started. Today it did not start after waiting ... the shop called, the banged the fuel pump and it started. Now I have to replace it. A new GMc pump is $600