2007 Suburban LTZ 4WD 5.3L 165,000 miles

while accelerating im experiencing loss of power and the rpms drop with throttle engaged. I let off throttle and re-engage and im good if im conservative with the throttle.

Now the same problem as above occurs, but I am now getting the "Stabilitrak Off" light popping on. when I let off the throttle the light went off and the RPMS went back up.

I just got this thing and im up in arms

Last time it was low on fuel, and after I filled it up it was fine.

this time I have a little under an 1/8th of a tank and it just started happening.

could this simply be a "low fuel" problem?

I have codes:

1. C0900
2. C0899
3. C0561
4. P0171
5. P0174

 

Likely an intake manifold gasket leak.
Also might be:

Mass Air Flow Sensor. MAF
Bad Fuel Injectors
Fuel Pump/Fuel Filter bad

Might want to check your battery connections too.

 

HI oilcanhenry,

after this occurred I filled it with gas and some sea foam, since that, which is a few days ago now, I have not had the issue.
I am not sure what that means?

 

a low fuel problem might be due to a fuel pump issue and the fuel might be covering it up once you add fuel.