Suburban cranks a long time then starts

Thank you so much for this post I got a new pump on Amazon for $230.00 and installed it, car never has run better! I love this site.

Engine Performance problem
2002 Chevy Suburban V8 Two Wheel Drive Automatic

How do I check the fuel injectors on a 2002 suburban to see if they are leaking? When the truck sets for a while, it takes a long time to start. Cycling the ignition on & off a few times to build pressure helps but it still cranks for a while. I just want to eliminate the injectors (or anything else) before I replace the fuel pump.

Fuel pressure is 0. I attached a plastic line to the test port, push in the needle valve and get no flow when cranking engine. I disconnected the fuel line before the fuel filter and get no flow after cycling the ignition 5-6 times. You can hear the fuel pump run for 3 sec when cycling ignition which results in a "dribble" of gas.

Dropped the tank, pulled the pump & tested it in a bucket of water. It runs, pumps water and appears to have good pressure (did not measure).? Dried it off and reinstalled it. I now have fuel flow at the filter (didn't have that before) - reconnected the fuel line and the truck starts & runs fine. I did notice some fine black particles pumped out with the gas when testing the pump right after I reinstalled it.

What now? Is it fixed, Was it just clogged, will it die again as soon as I hang the tank back up and bolt everything down. Intermittent problems are always the worst, you are never sure if it is fixed or just started to work again for a while. What now?

My 2000 suburban is hard to re-start after I turn it off. I have to hold down on the gas while cranking for several seconds to get it to start. When it starts back up it will "diesel" for a few seconds then run fine.

If I try an start it by turning the key forward and after about 3 seconds turn the key all the way it starts fine. But if I turn the key all the way right away it cranks fine but it takes about 3-4 seconds before it starts. I have changed the fuel pressure regulator, the fuel filter and the fuel pump relay, with nothing helping. What else should I check before I go to the extreme of the dreaded fuel pump? I haven't checked the pressure on the fuel line port.

Figured if the regulator wasn't holding pressure that could be a reason for not starting right away. Battery is 1 yr old not sure bout the starter but it cranks fine. How do you check if the relay isn't getting power immediately?

Electrical problem
2001 Chevy Suburban V8 Four Wheel Drive Automatic

battery is at 12.5 volts cold it sounds weak when I go to start it after I run it till it gets hot it starts right up do u think battery should be holding more volts

No engine is not runningbattery is a 12.5 when running 13.6 13.7 but once motor is warmed up it starts just fine could it be starter dragging till it warm? No its not fuel pressure. It slow crank's when cold

From a cold start, if I just turn the key the engine will turn over and over then it will eventualy start. If I turn the key on but do not attempt to start and let it sit for a few seconds the engine starts and runs fine. I suspected the fuel pump but it has been doing this for several months and has not failed.

About once a week the suburban won't start. When I turn the key everything comes on but the engine doesn't even try to turn over. There is no sound not even any clicking. When I come back the next morning it starts right up. I have a feeling it has something to do with security but nothing I try works. Do you have any ideas?