isaac rm

i want to do maintenance service to fuel injectors, it is a vortec 2.9 L engine, its the first time a will do so i would like to get some references about that, i guess i have to remove the fuel rail then get the injectors, but look complicated at first sight, what pieces i need to remove it and get the fuel rail?

thank you

MDTAHOE

What kind of "maintenance" are you trying to do that involves removing the fuel injectors?

isaac rm

thanks mdtahoe, im not a Professional Mechanic, just a owner of chevy colorado 95000 mi, the MPG is low and i would like to review the injectors with lab so i would like to remove the fuel rail, also i remove the thermostat and i found that a sealant was out of place as you can see in the pictures, its not damaged and i can put into her place, but is this a good idea? do i need to replace it?

i really appreciate your support.