Starting issues 2000 Tahoe 5.3L 110,00 miles

[Tahoe00]

Hey everyone I have a 2000 Tahoe 5.3L 110,00 with almost the same issues as in this thread:
http://www.tahoeyukonforum.com/forum/showthread.php?t=10910&highlight=starting+problem
the only difference is at cold start is will not start sometimes....I thought at first that the battery was bad but my father-in-law said he replaced it only months before we bought it so I just nixed it...then tried the terminals and that didn't do anything....my friends think that I should check fuel delivery....which it is in need of a fuel filter but do you possibly think it could be a fpr? also one thing I am scared it may be is the ignition..... What are your thoughts... Also I can hear the fuel pump when I turn the key just no dice on the first few trys lately I have been able to turn it on the first time...

 

[blueflamed03]

fuel pump

 

[Tahoe00]

fuel pump

do you think it would still be the fuel pump if I can here it turning on? sorry should have added that in there....

 

[blueflamed03]

could, turn key to the ON position 2-3 times, on-off, three times, and then see if it fires. May not be holding a prime.

 

[gdddup]

maybe the fpr

 

[2005yukonxl]

FPR would be my guess. do these trucks have a fuel line port to hook a pressure gauge to? if so, see if the pressure bleeds off after sitting a while. or take a rag and screwdriver and poke the port like you would a tire valve and see if it sprays fuel at ya. if it does, then it holds pressure fine. if not, u gots a leakdown somewhere probally in the FPR. or u could do the key cycle thing back and forth like stated above but its not nearly as fun as spraying fuel onto a motor.

 

[BaggedDenali00]

could, turn key to the ON position 2-3 times, on-off, three times, and then see if it fires. May not be holding a prime.

i have to do this all the time on mine is there a check valve in the fuel pump setup?? or the regulator do this??

 

[Tahoe00]

thanks for the input I will check out what blueflamed03 said and also 2005yukonxl

 

[blueflamed03]

i have to do this all the time on mine is there a check valve in the fuel pump setup?? or the regulator do this??

yes, only thing you can do now is replace fuel pump...one day it will leave you stranded.

 

[Copper&Black]

+1 on the Fuel pump. Same happened to mine and I chased the problem for along time until I bit the bullet and replaced the fuel pump. No more issues since.
Does fuel level having any bearing on if she starts or not when cold? If mine sat overnight under 1/4 tank then she wouldn't start until I added fuel. Then it got worse, 1/4 tank turned to 1/2 without starting, so I replaced the pump.