99 tahoe hard time starting

[moonrider]

I have a 99 Tahoe. Its will crank but has hard time to start. Takes sometimes 5 to 20 tries to actually start. New water pump, new plugs & wires, new battery, cable ok, relay ok, new fuel filter, no security light flashing. What else could it be need help please ready to trade it.

[MT-2500]

Originally Posted by moonrider

I have a 99 Tahoe. Its will crank but has hard time to start. Takes sometimes 5 to 20 tries to actually start. New water pump, new plugs & wires, new battery, cable ok, relay ok, new fuel filter, no security light flashing. What else could it be need help please ready to trade it.

How is the fuel pressure?
Hard to start cold.
Check cold start fuel pressure.
Check engine running fuel pressure.
Check engine running on the road fuel pressure.
Then shut it off and watch for fast leak down.
Pinch off at rubber part or block off return line and check full pressure.
Later V6 and V8 gm engines should have 60-66 fuel pressure.
Cold start should be 64-65 lbs of pressure.
If you do not have full fuel pressure on a cold start the injectors will not squirt fuel.
Do not leave home without it.
Engine running should be 60-66 lbs pressure depending on engine load.
Full pressure with return pinched off should be 75-85 or more.
And if it has a fast leak down after shut off you have a leak.
Post back fuel pressure readings.

[moonrider]

will have to try to get pressure checked, because not sure how to do that and do not have the tool. we are lightweights with a little common sense and a chilton man. lol could it possible be distributor cap????? thanks

[taillight]

Check the fuel pressure.