lts and maybe somebody could figure out why I have been having all these starting problems for so long. -Key turned to "ON" position-no pressure -1st crank-no start -2nd crank-starts hesitantly and chugs until pressure is built. This test was run on a cold engine.
Results of my Fuel Pressure Test-2004 Chevy Silverado-I was told to post my resu on 2004 Chevrolet Silverado 1500
by kimkingtaylor in Houston, TX on March 19, 2013
3 answers 8 comments
ANSWER by globalhelper , March 20, 2013
the fuel pump is not working properly and the regulator inside is allowing the pressure to bleed off along with low pressure
COMMENT by kimkingtaylor , March 21, 2013
So can we just replace the regulator?
ANSWER by arturo08 , March 19, 2013
failing fuel pump possibly. your fuel pump should build pressure as soon as you turn the key. doesn't sound like it is priming the line properly. manual test is turn key and stop before cranking. should be able to hear the pump priming the line. short whirring sound.
COMMENT by kimkingtaylor , March 19, 2013
You can hear the pump priming
COMMENT by arturo08 , March 19, 2013
if it takes time to build pressure, is a symptom fuel pump failing. does it sound strong or like it's laboured. should take no longer than a second to prime than it stops.
Doesn't sound labored but does take longer than a second
COMMENT by pushrod , March 20, 2013
No reply, already been instructed as to how to fix!
We are going to start on that in the morning. One more question do you know where the fuel pressure regulator is located?
ANSWER by milesauto , March 20, 2013
Check for restricted fuel filter. Replace filter...rerun test. If it does not show pressure with key on then likely the fuel pump assy. will likely need to be replaced.
I was told my truck has a non-serviceable fuel filter.
COMMENT by arturo08 , March 20, 2013
fuel pumps in general are not servicable. you have to have them replaced.