2011 Chevy Silverado 1500 Fuel Pressure Problem?

amc31b · January 4, 2014

A quick follow up on this problem- I ran my tank nearly empty and filled up with fresh gas on Monday. My truck sat for 1 day, was started and it fired right up, first time no problems. I drove around and did a few things and then the truck sat again. This time the truck sat for 2 days and was started in 7 degree weather. The engine turned right over and ran great, no stumbling. It has been very cold the rest of this week and the problem has not come back at all!

I am going to call my problem solved! I never liked to run my gas tank beyond half empty because I didn't like paying the price for a full tank of gas. Now I will make sure to run it down every few weeks just to make sure I don't have this issue again.

Thanks Govtech!

gmtech4 · January 4, 2014

anytime

andrewrvincent · April 4, 2016

Bassmaster (or anyone .....),

My 2010 GMC Sierra is doing the same exact thing. Started right around the same time I replaced the intake manifold gasket due to a leak. So far I have

- replaced the MAF

- replaced the O2 sensors

- replaced the fuel pump

- cleaned throttle body

When cold I have ZERO fuel pressure - suspected clogged fuel filter thus the fuel pump was replaced but the issue remains. In order to get the truck started when cold I floor the accelerator while its turning over it that gets it to fire up. The fuel pressure remains at 0 for about a minute or two and then it slowly rises to about 43. Once warm the system operates as it should - key on pressure at around 60, starts fine and idles at around 50 and then settles down to 43 ish.

I suspect now that I need a PCM.

I am receiving faults P01175 and P0172 (system too rich).

How did you finally resolve your problem? Was it the PCM? I'm doing all the work myself so I am nto paying a ton, but I hate to spend good money after bad and keep throwing parts in it that I don't need.

Thanks

Andy

Cody Halkett · June 13, 2016

Bassmaster (or anyone .....),

My 2010 GMC Sierra is doing the same exact thing. Started right around the same time I replaced the intake manifold gasket due to a leak. So far I have

- replaced the MAF

- replaced the O2 sensors

- replaced the fuel pump

- cleaned throttle body

When cold I have ZERO fuel pressure - suspected clogged fuel filter thus the fuel pump was replaced but the issue remains. In order to get the truck started when cold I floor the accelerator while its turning over it that gets it to fire up. The fuel pressure remains at 0 for about a minute or two and then it slowly rises to about 43. Once warm the system operates as it should - key on pressure at around 60, starts fine and idles at around 50 and then settles down to 43 ish.

I suspect now that I need a PCM.

I am receiving faults P01175 and P0172 (system too rich).

How did you finally resolve your problem? Was it the PCM? I'm doing all the work myself so I am nto paying a ton, but I hate to spend good money after bad and keep throwing parts in it that I don't need.

Thanks

Andy

Cody Halkett · June 13, 2016

Did you happen to find out anything on this fuel issue? Mines been doing it for about a 6 months! I have to cycle and crank the engine over 3 times in order for it to start, sure am getting sick of throwing money at mechanics to figure it out when no one seems to know what's going on.. No codes or nothing!! Just this stupid fuel problem! I love my truck but this is getting embarrassing!!

AvalancheLTZ · July 27, 2016

I am having the exact same issue with my 07 Avalanche. Has anyone encountered a solution to these starting issues?

AvalancheLTZ · September 17, 2016

Had my fuel injectors changed as they where bleeding down pressure, that was last week..... and haven't had the starting issue since. Before the injectors I would have the starting issue every day.