strange problem need help

[a.emerezian]

hey guys so last week i turned on my 04 tahoe and the rpm seemed to be very low and the car didn't drive normal whenever i push on the gas i see the rpm decreasing rapidly then from that time untli now sometimes i turn the truck on and there is no problem while other times i turn it on and i notive the rpm at 0 and the car dirves somehow strangely.
i dont know whats the problem but my friend told me there's a problem with electricity or something with the computer and another one told me its the fuel pump. please help me through this problem.

 

[swtz71]

did the truck throw any codes? is the engine light on or blinking?
My old 01 chevy did that for a couple times it had to do with the alarm remote start...

 

[a.emerezian]

yes the engine made a little blinking..
what was your exact problem and how did u fix it
+ anyone have more ideas ?

 

[Rivieraracing]

Well if the engine light was on, I'd get the codes pulled and see what ones they are!